Fire extinguisher shall comply with the following requirements:
1.Fire extinguisher shall be equipped according to the potential fire characteristics of the place, and the minimum fire extinguishing efficiency shall be calculated following the provisions below:
(1)In places listed in 12.1 and 12.5, there shall be a unit fire extinguishing efficiency for every 100m2 of the floor area (including the last proportion less than 100m2) on each floor.
(2)In places listed in 12.2~4, there shall be a unit fire extinguishing efficiency for every 200m2 of the floor area (including the last proportion less than 200 m2) on each floor.
(3)In boiler room, kitchen and other places where fire is used in large amounts, there shall be a unit fire extinguishing efficiency for every 25m2 of the floor area (including the last proportion less than 25 m2) on each floor.
2.There shall be a unit fire extinguishing efficiency for every 100 m2 of the floor area in movie projection room and other places where electric equipments are used.
3.On a storey where there is a fire extinguisher, the travel distance from any point of the living rooms on the floor to the fire extinguisher shall be not more than 20m.
4.Fire extinguishing equipments shall be located in obvious places convenient for fetching, and a 20m2 or larger indicating plate marked with “Fire Extinguisher” in white text on red background shall be set up nearby. However, if the fire hydrant box with other equipment are combined in and the word “Fire Extinguisher” is marked on the surface, the color of the mark is not limited.
5.For a fire extinguisher hanging on the wall or placed inside a fire extinguisher box, if the weight of the extinguisher is 18kg or more, the distance from the upper end to the floor shall be not more than 1m; if the weight is less than 18kg, the distance shall be not more than 1.5m.

Piping and fittings for indoor hydrant and roof water tank shall be equipped pursuant to the following provisions:
Piping
(1)Piping systems should be used for dedicated purposes, but if they are used togher with outdoor fire hyfrants, auto sprinkler system, hoses and other extinguishing facilities and its funcion can be realized individually, the matching pipes aren’t required to use for the special purposes.
(2)One of the following requirements should be met: Chinese National Standards (hereinafter called CNS) CNS6445 piping and 4626 pressure piping should be the carbon steel pipes and 6331 piping should be the stainless steel pipes or equivalent with the same intension, corrosion resistance and thermal resistance or above.
Synthetic resin pipe with its tightness, intension, corrosion resistance, weatherability, thermal resistance and other performances authorized by the central regulating authority.
(3)The pipes’ diameter should be determined by the hydraulic calculation. But if it is used with the hoses, the diameter of the standpipes shoud be over 100 mm.
(4)As for the dameter of the standpipes, the type Ⅰ hydrant is required to be over 63 mm and the second one be over 50 mm.
(5)Standpipes should be installed in places where they are unlikely to be damaged or it is difficult for fire to reach.
(6)Standpipes should be connected to roof tank, gravity or pressure tank, and be full of water during the normal day.
(7)Effective quakeproof measures are required.
Hydraulic seal indictes the on-off state in a clear way and check valve indicates the direction of flow and comply with CNS.
Roof Tank
(1)Water quantity in tank should be more than 0.5m3 for the type I hydrant and 0.3m3 for the type II one. But if it is used togther with other extinguishing facilities, the quantity should be kept to the maximum.
(2)Effective quakeproof steps are required.
(3)No tank is required to be installed on a sloping roof.

Upon completion of installing indoor fire hydrant equipments, pressurization test shall be made under a test pressure not less than 1.5 times the total closed pumping lift of the pressurization and driving device. If leakage doesn’t occur after the test pressure lasts for two hours, the equipments shall be regarded as qualified.

Except that the places listed in 12.2 (11) or 12.4 shall be equipped with Type I hydrants, other places shall be quipped with Type I or II hydrants pursuant to the following provisions:
1.Type I hydrant shall be equipped according to the following provisions:
(1)The horizontal distance from any point on each floor to the hydrant shall be less than 25m.
(2)In any storey, when all the hydrants are used simultaneously, the aimer discharging pressure of each hydrant shall be more than 1.7kgf/cm2 or 0.17Mpa and the water output more than 130kg/min. But where there are more than two hydrants totally, it shall be supposed two are used simultaneously for calculation.
(3)One hydrant with a caliber of 38mm or 50mm, two pieces of 15m-long water hoses with a caliber of 38mm or 50mm and equipped with quick connectors, a set of hose frame and a line water fog two-purpose aimer with a caliber over 13mm shall be equipped in a hydrant box. But where the horizontal distance from the hydrant connector to any point of the building is less than 15m, two pieces 10m-long water horses may be equipped.
2.Type II hydrant shall be equipped according to the following provisions:
(1)The horizontal distance from any point on each floor to the hydrant shall be less than 25m.
(2)In any storey, when all the hydrants are used simultaneously, the aimer discharging pressure of each fire hydrant shall be more than 1.7kgf/cm2 or 0.17Mpa, and the water output more than 80kg/min. But where there are more than two hydrants totally, it shall be supposed two are used simultaneously for calculation.
(3)One hydrant with a caliber of 25mm, 30m-long water hose or the fire hose which section remain round(消防用保形水帶), and a set of hose frame and a line water fog two-purpose aimer shall be equipped in a fire hydrant box. And the aimer shall be equipped with an operable switching device.
The above-mentioned hydrants shall comply with the following provisions:
1.The height of hydrant switch from the ground shall be more than 0.3m and less than 1.5m.
2.Hydrants shall be located nearby aisle or fireproof stairway, convenient for fetching.
3.In gathering or amusement places, hydrants shall be located at the two sides of stage and behind auditoria, and behind loge.
4.At least one testing outlet shall be equipped at appropriate locations on the roof, and marked with “Testing Water Outlet”. But if it is difficult for a sloping roof to install a testing outlet, the outlet isn’t required.

Indoor hydrant box shall comply with the following provisions:
1.The box shall be made of steel sheet with a thickness more than 1.6mm or the equivalent of nonflammable materials.
2.The box shall be deep enough to contain hydrants, hose and nozzle, and the surface area shall be more than 0.7m2.
3.The box surface shall be marked with obvious text “Fire Hydrant” that is unlikely to be brushed off, and each character shall be bigger than 20cm2.

The capacity of indoor fire hydrant equipments shall be not less than the quantity of all the fire hydrants on the floor that has the most indoor fire hydrants continuously discharging for 20 minutes. However, if the total number of fire hydrants on the floor is more than 2, then 2 shall be used as the total number.
Where fire water is used mixed together with common water, necessary measures shall be taken to ensure the capacity of the former water source are in the effective range.
Water source for fire extinguisher may be equipped together with water sources for other fire extinguishing equipments, but the total capacity shall be not less than the sum of the necessary water quantity required by fire extinguishing equipments.

Water source equipped under Article 36 shall be connected with pressurization and driving device in accordance with the following clauses:
1.Gravity tank shall comply with the following provisions:
(1)There shall be nilometer, drainpipe, overflow discharging pipe, feedwater pipe, and inlet.
(2)The necessary drop height of water tank for hydrant shall be more than the value computed using the formula below:
Necessary drop height = water head loss by fire hose friction + water head loss by matching pipe friction + 17 (Unit: m)
H = h1 + h2 + 17m
2.Pressure tank shall comply with the following provisions:
(1)There shall be pressure gauge, nilometer, drainpipe, feedwater pipe, air supply pipe, air compressor, and inlet.
(2)The air in water tank shall be more than 1/3 of the capacity of the tank, and the pressure more than the necessary pressure of using fire hydrant at the highest point of the building to maintain the prescribed discharging water pressure. Automatic pressurization can be made when the pressure and liquid level inside the tank lower down. Air compressor and pressurizing pump shall be connected to emergency power source.
(3)The necessary drop height of water tank for hydrant shall be more than the value computed using the formula below:
Necessary pressure = water head loss by fire hose friction + water head loss by matching pipe friction + drop height + 1.7 (Unit: kgf/cm2)
P = P1 + P2 + P3 + 1.7kgf/cm2
3.Fire pump shall comply with the following provisions:
(1)For Type I fire hydrant, water output of fire pump shall be more than 150L/min each fire hydrant, and for Type II fire hydrant, more than 90L/min each fire hydrant. However, if the total number of fire hydrants exceeds 2, the 2 shall be used as the total number.
(2)The total pumping head of fire pump for fire hydrant shall be more than the value computed using the following formula:
Total pumping head = water head loss by fire hose friction + water head loss by matching pipe friction + drop height + 17m (Unit: m)
H = h1 + h2 + h3 + 17m
(3)The pumps shall be used dedicatedly. However, they may be used together with other fire extinguishing equipments if this has no harmful effect on the performance of the equipments.
(4)They shall be connected to emergency power source.
The above-mentioned pressurized type water supply system shall be equipped except the gravity tank pursuant to the following provisions:
1.They shall be located in places convenient for repair and unlikely to be damaged by fire.
2.Pressurized type water supply system used with fire pumps shall be separated by walls which can resist the fire for at least one hour, floorslab, fireproof doors or windows and other fireproof facilities. But if it is located in the roof or outdoors and protected by waterproof materials, such devices are excluded from the obligation in this provision.
3.Automatic or manual actuating device that can be only stopped manually shall be equipped. Manual actuating device shall be installed in each indoor fire hydrant box, and there shall be a red start indicating lamp on each indoor fire hydrant box.
4.Necessary decompression measures shall be taken when the discharging pressure of an indoor fire hydrant exceeds 7kgf/cm2.
5.Effective quakeproof steps shall be required.

Generator or battery shall be used for the emergency power source of indoor fire hydrant, and the power capacity shall be able to enable the power source to work for at least 30 minutes.
In places listed in 12.4, engine power system shall be used for the above-mentioned emergency power source.

Articles 32.1 (1)~(5), 32.1 (7), 32.2, 33 and 38 shall apply to piping, pressure test and emergency power source of outdoor fire hydrant equipments.
The exposure part of the horizontal main pipes should be less than 20 m, other than satisfy the previous requirement, and the direction of flow and pipes name should be marked clearly.

The following requirements shall be observed in the construction of outdoor hydrants:
1.Hydrant diameter shall measure at least 63 mm and location of it shall be within a 40-meter radius of the outer walls of the building ground floor.
2.Nozzle discharge pressure shall be at least 2.5 kg/cm2 or 0.25 MPa, and discharge flow rate shall be at least 350 L/min.
3.The outdoor hydrant switch shall not exceed the maximum height of 1.5 meters above ground and be above the minimum height of 0.6 meter above ground. Where the hydrant is installed underground, the fire hose joint position shall be at least 0.3 meter above ground.
4.A fire hose house shall be located within a 5-meter radius of the hydrant and meet the following requirements:
(1)The fire hose house shall be deep enough to contain fire hoses and nozzle. Drainage holes shall be installed on both sides of the house base. Moreover, the cover of the fire hose house shall have an area of at least 0.8 m2.
(2)The house cover shall be indelibly marked with “Fire hose” in visible text. Each word shall measure at least 20cm2.
(3)The fire hose house shall contain at least two pieces of fire hoses having a length of at least 20 meters and a diameter of 63 mm, one dual-purpose beeline spray nozzle with a diameter of at least 19 mm, and a valve-type hydrant switch.
5.The space within a 3-meter radius of the outdoor hydrant shall always be kept vacant and free from piled objects, trees, or shrubbery. Visible signs saying “Hydrant” shall be installed near the hydrant location.

The capacity of outdoor fire hydrant equipment shall be not less than the water output of two outdoor fire hydrants discharging simultaneously for 30minutes.
Where fire water is used mixed together with common water, necessary measures shall be taken to ensure the capacity of the former water source are in the effective range.
Water source for fire extinguisher may be equipped together with water sources for other fire extinguishing equipments, but the total capacity shall be not less than the sum of the necessary water quantity of each fire extinguishing equipment.

Water source equipped under Article 41 shall be connected to pressurization and driving device in accordance with any clause of the following:
1.Gravity tank shall comply with the following provisions:
(1)There shall be nilometer, drainpipe, overflow discharging pipe, feedwater pipe, and inlet.
(2)The necessary drop height of water tank shall be more than the value computed using the formula below:
Necessary drop height = water head loss by fire hose friction + water head loss by matching pipe friction + 25 (Unit: m)
H = h1 + h2 + 25m
2.Pressure tank shall comply with the following provisions:
(1)There shall be pressure gauge, nilometer, drainpipe, feedwater pipe, air supply pipe, air compressor, and inlet.
(2)The air in a water tank shall be more than 1/3 of the capacity of the tank, and the pressure over the necessary pressure of using fire hydrant at the highest point of the building to maintain the prescribed discharging water pressure. Automatic pressurization shall be made when the pressure and liquid level inside the tank lower down. Air compressor and pressurizing pump shall be connected to emergency power source.
(3)The necessary pressure of water tank for Type I fire hydrant shall be more than the value computed using the formula below:
Necessary pressure = water head loss by fire hose friction + water head loss by matching pipe friction + drop height + 2.5 (Unit: kgf/cm2)
P = P1 + P2 + P3 + 2.5kgf/cm2
3.Fire pump shall comply with the following provisions:
(1)Water output of fire pump shall be more than 400 L/min each fire hydrant. However, if the total number of fire hydrants exceeds 2, the 2 shall be used as the total number.
(2)The total pumping head of fire pump shall be more than the value computed using the following formula:
Total pumping head = water head loss by fire hose friction + water head loss by matching pipe friction + drop height + 25 (Unit: m)
H = h1 + h2 + h3 + 25m
(3)The pumps shall be used dedicatedly. However, they may be used together with other fire extinguishing equipments if this has no harmful effect on the performance of the equipments.
(4)They shall be connected to emergency power source.
Provisions of 37.2(1)~(3) and 37.2(5) shall apply to the above-mentioned pressurization and driving device except gravity tanks, and effective decompression measures shall be taken when the discharging pressure of outdoor fire hydrant aimer exceeds 6kgf/cm2 or 0.6Mpa.

Any of the following automatic sprinkler system may be equipped optionally according to the actual circumstance. But only open type can be equipped in stages of the places listed in 12.1(1) and of conference room listed in 12.1(2)..
1.Enclosed wet type: pipes are filled with high-pressure water at other times, and water nozzles immediately on motion of the nozzle.
2.Enclosed dry type: pipes are filled with high-pressure air at other times, and water is sprayed after the air is discharged upon starting of the nozzle.
3.Open type: there is no water in the pipe at other times, and water flows into the pipe after the valve is opened.
4.Pre-action type: pipes are filled with low-pressure air at other times; senor is used to actuate water flow detecting device, and water sprays immediately on motion of the nozzle.
5.Other types recognized by the central regulating authority.

Piping and fittings of automatic sprinkler system and roof tank shall comply with Article 32.1 and 32.2 and meet the following provisions:
1.Preservation treatment like zincification etc shall be made to the secondary side matching pipe of water flow detecting device for enclosed dry type or pre-action type, as well as the secondary side matching pipe of deluge valve.
2.The secondary side matching pipe of water flow detecting device of enclosed dry or pre-action type shall be equipped pursuant to the following provisions for ensuring effective drainage.
(1)Brach pipe shall incline 4cm every 10m, and main pipe 2cm every 10m.
(2)Drain valve shall be equipped obviously, and marked with “Drain Valve”.
3.The quantity of water in a roof tank shall be not less than 1m3 where standpipe is connected to the roof tank.

On completion of automatic sprinkler system, pressurization test shall be made pursuant to Article 33. But air compression test shall be made to pipe system of enclosed dry type automatic sprinkler system. During the test, the air pressure remains at 2.8kgf/cm2 or 0.28Mpa for 24 consecutive hours. If the air leakage is less than 0.1kg/cm2 or 0.01Mpa, the product is qualified.

Sprinkler shall be equipped pursuant to the following provisions:
1.For stages and prop rooms of theaters, ballrooms, nightclubs, singing salons, conference halls and other showplaces, as well as projection rooms of theaters or warehouses for storing flammable materials, the horizontal distance from any point to a sprinkler shall not exceed 1.7m.
2.For auto-repair workshops, indoor parking lots and mechanical lift-type parking lots, the horizontal distance from any point to a sprinkler shall not exceed 2.1m.
3.Buildings not included in the previous subparagraphs should be equipped pursuant to the following provisions:
(1)General reaction-type sprinkler (Type-2 sensitivity): The horizontal distance from any point on each floor to the sprinkler head shall not exceed 2.1m. This may be increased to 2.3m for fireproof buildings.
(2)Fast response sprinkler (Type-1 sensitivity): The horizontal distance from any point on each floor to the sprinkler head shall not exceed 2.3m. But for fireproof buildings, the distance can be increased to 2.6m. For effective sprinkling radius of sprinkler head certified by the central regulating authority, the horizontal distance from any point at each floor to the sprinkler head may exceed 2.6m.
4.The living rooms, wards and other similar places listed in Article 12, Subparagraph 1, Item 3 and Item 6, Subparagraph 2, Item 7 and Subparagraph 5, Item 1 shall be equipped with sprinkler head dedicated to small partition approved (only applicable to type-1 sensitivity). The horizontal distance from any point to the head shall not exceed 2.6m, the minimum distance between sprinklers shall be 3m, and the protecting area of any sprinkler shall not exceed 13m2.
5.The living room listed in the previous Subparagraph, its corridors, aisles and other similar places shall be equipped with a sidewall sprinkler head (only applicable to type 1 sensitivity). The horizontal distance between both sides of the wall surface and the head shall not exceed 1.8m and distance between the front of the wall and the head shall not exceed 3.6m.
6.Places approved by the central regulating authority to store large amount of flammable materials shall be equipped with open type sprinkler system if the ceiling height exceeds 6m and other places also be equipped with this kind of sprinkler head if the ceiling height exceeds 10m.
7.In underground buildings, if the height between the ceiling and slab exceeds 50cm, both the ceiling and the slab shall be equipped with sprinkler heads, and the horizontal distance from any point to the sprinkler shall not exceed 2.1m. However, when the ceiling is decorated with nonflammable material, the slab can be exempted from installing sprinkler heads.
Sprinkler head of high rack storage warehouse specified in Article 17, Para-graph 1, Subparagraph 6 shall be provided pursuant to the following provi-sions:
1.Sprinklers installed on the shelve shall comply with the following requirements:
(1)The horizontal distance from any point to the sprinkler head shall not exceed 2.5m with heads installed staggered.
(2)One sprinkler heads at least every 4m height shall be provided to places for storing cotton, plastic, wooden and paper products, fiber goods and other flammable materials; one at least every 6m height for places storing other materials.
(3)If the stored material blocks the spray of sprinklers, heads shall also be installed beneath the stored materials.
(4)Protection plates shall be installed in accordance with Article 47, Paragraph 2 specifications. However, sprinkler heads dedicated to shelf use approved by the central regulating authority are exempted from this limitation.
2.Sprinkler heads provided on the ceiling or slab, except for that mentioned in the previous Subparagraph, the horizontal distance from any point to a sprinkler nozzle shall not exceed 2.1m.

(Due to formatting constraints, the full content of the articles cannot be displayed here. Please refer to the complete document for details.)

• Article 47.pdf

Enclosed-type nozzle of certain rated temperature shall be selected according to the maximum ambient temperature of the mounting position and following the table below:
┌──────────────┬─────────┐
│Maximum ambient temperature │Rated temperature │
├──────────────┼─────────┤
│ <39℃ │ <75℃ │
├──────────────┼─────────┤
│ 39℃≦T<64℃ │ 75℃≦T<121℃ │
├──────────────┼─────────┤
│ 64℃≦T<106℃ │ 121℃≦T<162℃ │
├──────────────┼─────────┤
│ ≧106℃ │ ≧162℃ │
└──────────────┴─────────┘

It is allowable that nozzle is not equipped in the following places:
1.Toilet, bathroom or water closet.
2.Fume chamber of indoor safety stairway, fume chamber of special protected stair or emergency elevator hoistway.
3.Fireproof elevator, fluctuating way or piping room.
4.Elevator machine rooms or machine rooms of venting equipments.
5.Telecommunication machine rooms or computer rooms.
6.Equipment rooms of generator, transformer or other similar electric equipments.
7.Aisles where fire can’t be effectively detected due to external air current.
8.Operating room, delivery room, X-ray (radiation) room, intensive care sickroom, anesthetic room, or other similar places.
9.The proportion of fixed chairs in auditorium used for places listed in 12.1(1) and assembly hall listed in (2) where the height of the mounting surface of nozzle is more than 8m.
10.Above water surface of indoor swimming pool, or ice surface of skating ground.
11.Cashbox where the main construction is fireproof and the opening is equipped with fireproof door that has a fireproof effect of at least one hour.
12.Warehouses or rooms where aluminum powder, calcium carbide, calcium phosphide, natrium, calcium oxide, magnesium powder, kalium, natrium dioxide and other water-deprivation substances, or other chemicals that will cause danger on encountering water are stored.
13.Buildings provided in Article 17.1(5) (the underground floor, non-opening floor and floors over 11 storeys aren’t included) and used for the purposes listed in Article 12.2~4 shall be separated from other parts by walls or floorslabs that has the fireproof effect of at least one hour and satisfy the following requirements:
(1)The total area of separating wall and openings shall be less than 8m2 and the area of any opening shall be less than 4m2.
(2)The openings mentioned in Article 49.13(1) shall be equipped with fireproof door and other similar facilities that have the fireproof effect of at least one hour and it isn’t allowable that the space between the openings and corridor and stairway cannot be equipped with iron rolling door for fire fighting. But if the area of openings is less than 4m2 and the division has two different directional escapes, the fireproof iron doors, windows and other facilities that shall has the fireproof effect of at least half an hour.
14. Buildings provided in Article 17.1(4) (the underground floor, non-opening floor and floors over 11 storeys aren’t included) and used for the purposes listed in Article 12.2~4 shall be separated from other parts by walls or floorslabs that has the fireproof effect of at least one hour and satisfy the following requirements:
The area of floorslabs of the separted part shall be less than 200m2.
Inner furnishing shall comply with Article 88 of Part of Design and Construction, Architecture Technology Standard.
(3)The openings shall be equipped with fireproof doors, windows and other similar facilities that have the fireproof effect of at least one hour and it isn’t allowable that the space between the openings and corridor and stairway cannot be equipped with iron rolling door for fire fighting. But if the area of openings is less than 4m2 and the division has two different directional escapes, the fireproof iron doors, windows and other facilities that shall has the fireproof effect of at least half an hour.
15. Other places designated by the central regulating authority.

The water output of a nozzle shall be more than 80L/min (those installed in the overhead warehouse shall be 140L/min), and pressure more than 1kgf/cm2 or 0.1Mpa. The water output of the small separation nozzle shall be more than 50L/min.
The water output of the open type nozzle shall be more than 5L/min for every 1m2 of the protecting area, and more than 10L/min for every 1m2 of places where store flammable substances.

The automatic sprinkler system shall be equipped with water flow detecting devices pursuant to the following provisions:
1.Where the floor area of each floor is within 3,000m2, each floor shall be equipped with a set; where the floor area exceeds 3,000m2, each floor shall be equipped with two sets. But where each of two adjacent storeys has not more than 10 nozzles and automatic fire alarm equipments installed shall be co-used that very two storeys.
2.On a floor without compartments, the foresaid 3,000m2 shall be increased to 10,000m2.
3.Alarm shall be made when nozzles or deluge valves are opened to spray water.
4.Braking valves shall be equipped with a height from the ground less than 1.5m and more than 0.8m, and indicating characters of “Braking Valve” shall be obviously marked nearby.

Automatic and manual actuating device of open type automatic sprinkler system shall be installed pursuant to the following provisions. But it is allowable that automatic actuating device is not installed where the receiving instrument is located in places where there are people at other times and the device can be immediately started in case of fire.
1.Automatic actuating device shall comply with the following provisions:
(1)Deluge valve and pressurization and driving device shall be actuated upon starting of sensing nozzle or detector.
(2)One sensing nozzle with a rated temperature of not more than 79℃ shall be equipped for every 20m2, and at least one fixed temperature Type I or Type II detector shall be equipped in every discharge area pursuant to Article 120.
(3)Sensing nozzle shall be placed in a location where the height of the mounting surface from the floor is not more than 5m and fire can be effectively detected.
2.Manual actuating device shall comply with the following provisions:
(1)A manual starting valve shall be equipped with a height from the ground not less than 0.8m and not more than1.5m, and indicating characters of “Manual Starting Valve” shall be obviously marked thereby.
(2)Deluge valve and pressurization and driving device shall be actuated upon motion of manual starting valve.

Deluge valve of open type automatic sprinkler system shall be pursuant to the following provisions:
1.Each discharge area shall be equipped one.
2.The secondary side piping of all-around relief valve shall be equipped with testing device, which is able to test the motion of the valve when water is not discharge in this area.
3.The pressure endured by deluge valve shall be not more than the maximum working pressure.

Discharge area of open type automatic sprinkler system shall comply with the following provisions:
1.Each stage shall have not more than 4 discharge areas.
2.Where there are two or more discharge areas, the floor area of each discharge area shall be not less than 100m2, and any two adjacent areas shall be mutually overlapped so as to fight fire effectively.

Enclosed or pre-action type automatic sprinkler system shall be equipped pursuant to the following provisions:
1.Air compressor for compressed air at the secondary side of water flow detecting device of enclosed dry or pre-action type shall be used dedicatedly, and shall be able to increase the pressure to the preset value of secondary side matching pipe of the water flow detecting device within 30 minutes.
2.Decompression alarm equipment for the secondary side of water flow detecting device shall be located in places populated at other times.
3.Water flow detecting device shall actuate the nozzle within 1 minute after the nozzle is opened.
4.Nozzle shall employ upward type unless matching pipe can take effective measures.

Check valve at the end of the automatic sprinkler system with enclosed type nozzle shall be equipped pursuant to the following provisions:
1.Pipe diameter shall be more than 25mm.
2.Check valve shall be equipped according to the piping system of each water flow detecting device, and connected to the end of the farthest branch pipe with the lowest discharge pressure on each floor of the building.
3.The primary side of check valve shall be equipped with pressure gauge, and the secondary side with metering hole having the same discharge performance as nozzle.
4.The height from the floor shall be less than 2.1m, and discharge pipe shall be attached; and “End Check Valve” shall be marked obviously.

(Due to formatting constraints, the full content of the articles cannot be displayed here. Please refer to the complete document for details.)

• Article 57.pdf

The water source installed as prescribed in the preceding article shall be connected to the pressurized type water supply system, and installed pursuant to one of the following conditions:
1.Where a gravity tank is used, the following requirements shall apply:
(1)The system shall be equipped with a water level gauge, drainage pipe, overflow drainage pipe, water supply pipe, and man hole.
(2)The required drop height of the tank shall be higher than that obtained from the formula provided below:
Required drop height =friction loss head of piping + 10 (unit: meters)
H = h1 + 10m
2.Where a pressure tank is used, the following requirements shall apply:
(1)The system shall be equipped with a pressure gauge, water level gauge, drainpipe, water supply pipe, air supply pipe, air compressor, and man hole.
(2)It is imperative that at least 1/3 space of the water tank shall be allotted to hold air, and pressure shall be more than adequate to maintain the prescribed pressure necessary to discharge or spray water from a sprinkler located at the highest point of a building. Automatic pressurization shall be effected whenever air pressure and water level inside the tank decreases. The air compressor and the pressurizing pump shall be connected to emergency power source.
(3)The essential water tank pressure shall be above the minimum pressure, as obtained from the equation set below:
Essential pressure = friction loss head of piping + drop height + 1 (Unit: kgf/cm2)
P = P1 + P2 + 1 kgf/cm2
3.Where a fire pump is used, the following requirements shall apply:
(1)Fire pump capacity shall be the sprinkler quantity prescribed in the foregoing article multiplied by 90 L/min (for high rack warehouse, 130 L/min). Where sprinklers for small compartments are used, sprinkler quantity shall be multiplied by 60 L/min. Where discharge nozzles are used, the capacity shall be prescribed based on the recognized computation formula of the central fire regulating authority.
(2)The total head of the pump shall be set above that determined through the following equation:
Total head of the pump = friction loss head of piping + drop height + 10 (Unit: meters)
H = h1 + h2 + 10m
(3)Fire pumps shall be used dedicatedly. However, this requirement is not applicable where other fire extinguishing equipments are available for use, providing that simultaneous usage of varying equipments do not negatively affect equipment performance.
(4)Fire Pumps shall be connected to the emergency power source.
The aforesaid pressurized type water supply system shall comply with the requirements set forth in Article 37 Paragraph 2 Subparagraph 1, 2 and 5. Moreover, it is imperative that the sprinkler discharge pressure shall not exceed 10 kg/cm2 or 1 MPa.

Outside buildings equipped with automatic sprinkler, 63-mm caliber water flow outlet shall be installed overground near the building line where is accessible for fire fighting cars pursuant to the following provisions:
1.They shall be used dedicatedly.
2.For a building equipped with automatic sprinkler where the floor area is less than 3,000m2, at least one double-opening outlet shall be installed, and connected to a female quick connector. One more outlet shall be added every time the floor area exceeds 3,000m2. However, if the due number is more than 3, then totally 3 outlets shall be installed.
3.They shall be placed where there is no obstacle and the height above the base ground is not more than 1m and not less than 0.5m.
4.They shall be connected to standpipe piping system, and their pipe diameters shall be not less than that of standpipe. Moreover, inverted valve and check valve shall be equipped at the locations convenient for examination and repair.
5.“Water Outlet” and pressure range shall be marked obviously nearby the outlet.

Emergency power source for automatic sprinkler system shall be established pursuant to Article 38.

Water fog nozzle shall be equipped pursuant to the following provisions:
1.The total area of protected objects shall be within the effective range of each water fog nozzle.
2.The effective radius of each water fog nozzle shall be not more than 2.1m.
3.The quantity of water fog nozzles shall be worked out according to the mounting angle, the drainage output and the area of protected objects. The water output per square meter shall be not less than 20 l/min in places listed in Item 3 and Item 4 in the attached table of Article 18, and not less than 10 l/min in places listed in other items in the same table.

Emergency power source, piping, fittings, roof tank and pressurization and transmission test upon completion, water flow detecing device, actuating device, and deluge valve of water spray fire-extinguishing equipments shall be established pursuant to Articles 38, 44, 45, and 51~53.

Spraying area refers to the radiation area of a deluge valve when being actuated, and each area is 50m2 in principle.
Where there are two or more foresaid spraying areas, the diameter of main pipe shall be not less than 100 mm.

The capacity of water source for water spray fire extinguishing equipments shall be kept at not less than 20 m3. Where there are two or more spraying areas, the capacity shall be kept at not less than 40 m3.The capacity of water source for water spray fire extinguishing equipments shall be kept at not less than 20 m3. Where there are two or more spraying areas, the capacity shall be kept at not less than 40 m3.

Water source equipped under Article 64 shall be connected to water pressurization and driving device.
Where fire pump is used as pressurization and driving device, water output and discharging pressure shall meet the following requirements, and emergency power source shall be connected.
1.Water output: more than 1,200 L/min. Where there are two or more spraying areas, the figure shall be more than 2,000 l/min.
2.Discharging pressure: shall enable each water fog nozzle in a spraying area at the farthest end of the piping system to maintain a pressure of more than 2.7kgf/cm2 or 0.27Mpa. But those for protecting electric equipment, the figure shall be more than 3.5kgf/cm2 or 0.35Mpa

The distance of water fog nozzle and matching pipe from high-voltage electric equipments shall comply with the table below:
┌──────────┬──┬──┬──┬──┬───┬───┬
│Voltage (KV) │≦7 │≦10│≦20│≦30│≦60 │≦70 │
├─────┬────┼──┼──┼──┼──┼───┼───┼
│Separated │Standard│250 │300 │400 │500 │1,000 │1,100 │
│distance ├────┼──┼──┼──┼──┼───┼───┼
│(mm) │Minimum │150 │200 │300 │400 │700 │800 │
└─────┴────┴──┴──┴──┴──┴───┴───┴
───┬───┬───┬───┐
≦100 │≦140 │≦200 │≦345 │
───┼───┼───┼───┤
1,500 │1,900 │2,60 │3,300 │
───┼───┼───┼───┤
1,100 │1,500 │2,100 │2,600 │
───┴───┴───┴───┘

Water outlet for water spraying shall be equipped pursuant to Articles 59.1~4, and “Outlet for Water Spraying” and pressure range shall be marked obviously.

Drainage equipments in indoor parking areas equipped with water spray fire extinguisher shall comply with the following provisions:
1.The ground of parking area shall have a slope gradient of more than 2%.
2.Parking slots except the proportion toward the driveway shall be equipped with 10cm or higher boundary barrier or boundary ditch with a depth up to 10cm and width over 10cm, which shall be connected with drainage.
3.Fire extinguishing pit shall be provided with oil-water separator, and located in place where it is difficult for fire to reach.
4.Drainage ditch shall be equipped with collecting pipes and in the center or the two sides of driveway and connected to the fire extinguishing pit.
5.The size and slope gradient of drainage ditch and collecting pipe shall ensure the maximum capacity of the pressurization and driving device can be discharged effectively.

Any of the following spraying patterns of foam fire extinguishing equipments may be selected according to the actual circumstance:
1.Fixed: Foam outlet shall be equipped pursuant to the shape, construction, quantity and property of the protected object. The quantity and location of outlets and spraying amount shall be able to ensure effective fire extinguishing.
2.Movable: The distance from water hose connector to any point of the protected object shall be not more than 15m.

Proper foam outlet shall be selected for fixed foam fire extinguishing equipments according to the actual expansion ratio of foam and the table below:
┌──────────┬────────────────┐
│Expansion ratio │Type of foam outlet │
├──────────┼────────────────┤
│<20 (Low frothing) │Foam nozzle or foam-water nozzle│
├──────────┼────────────────┤
│80≦R≦1,000 │High frothing outlet │
│(High frothing) │ │
└──────────┴────────────────┘
The above-mentioned expansion ratio refers to the ratio of the frothed cubage of foam to the cubage of foam-water solution required by frothing.

Foam nozzle shall be equipped pursuant to the following provisions:
1.Foam-water nozzle shall be used in hangar and other places, and at least one nozzle shall be equipped for every 8m2 of floor area, thus covering the protected objects in the effective range.
2.Foam nozzle shall be used in garage, indoor parking area and other places, and at least one nozzle shall be equipped for every 9m2 of floor area, thus covering the protected objects in the effective range.
3.The horizontal distance from any point of the spraying area to the foam nozzle shall be not more than 2.1m.
4.Where there are beams aside, foam nozzle may be equipped pursuant to 47.1(7).
5.Where there are multi-level parking facilities in an indoor parking area, the mounting surface of the top level shall be equipped with foam nozzle, and matching pipe shall be extended to between the vehicles, enabling the nozzle to give off foam toward the lower parking platform. But it is allowable that matching pipe for sensing nozzle is not extended.
6.Where foam nozzle for the above-mentioned multi-level parking facilities can’t be equipped on parking platforms other than the top level due to the construction, the matching pipe shall form an individual unit pursuant to the parking construction, and foam nozzles shall be equipped around to spray foam to the whole ambient area.

The output value of foam nozzle shall comply with the following provisions:
1.Output value of foam-water nozzle shall be not less than 75 l/min.
2.Output value of foam nozzle shall be in accordance with the table below:
Type of foam raw liquid Output value for every square meter of floor area (l/min)
Protein foam solution≧6.5
Synthetic foam solution ≧8
Aqueous film foam solution≧3.7

High frothing outlet shall be equipped pursuant to the following provisions:
1.Where total flooding is used, the following shall be observed, and the opening of the protected area shall be automatically closed before foam water solution is sprayed. However, it is allowable that automatic closing device is not equipped where the leakage at the opening can be made up effectively.
(1)Output value of foam water solution for high frothing outlet shall be calculated following the table below:
┌─────┬─────────┬──────────────┐
│Protected │Type of expansion │Output value of foam water │
│object │ratio │solution for every cube/min │
│ │ │of cubage covered by foam │
│ │ │(L) │
├─────┼─────────┼──────────────┤
│Hangar │80≦R<250 │ 2 │
│ │(hereinafter │ │
│ │referred to as │ │
│ │Type I) │ │
│ ├─────────┼──────────────┤
│ │250≦R<500 │ 0.5 │
│ │(hereinafter │ │
│ │referred to as │ │
│ │Type II) │ │
│ ├─────────┼──────────────┤
│ │500≦R<1000 │ 0.29 │
│ │(hereinafter │ │
│ │referred to as │ │
│ │Type III) │ │
├─────┼─────────┼──────────────┤
│ Indoor │Type I │ 1.11 │
│ parking ├─────────┼──────────────┤
│ area or │Type II │ 0.28 │
│ garage ├─────────┼──────────────┤
│ │Type III │ 0.16 │
├─────┼─────────┼──────────────┤
│ Places │Type I │ 1.25 │
│ listed ├─────────┼──────────────┤
│ in │Type II │ 0.31 │
│ Article ├─────────┼──────────────┤
│ 18.8 │Type III │ 0.18 │
└─────┴─────────┴──────────────┘
(2)The above-mentioned cubage covered by foam refers to that cubage surrounded from the floor of the protected object to 0.05m above the highest point of the protected object.
(3)Where high frothing outlets are located in the protected area, at least one outlet that is able to spray this area shall be equipped for every 500m2 of the floor area, and a stopping device shall be attached to the outlet.
(4)The location of high frothing outlet shall be higher than the highest point of the protected object.
(5)Where the location of the protected object is more than 5m above the floor and high frothing outlets are used, total flooding shall be employed.
2.Where local application is used, the following provisions shall be observed.
(1)Where protected objects are adjacent to each other, and the joint is likely to be fired, the objects together with the joint shall be regarded as one single protected object, and high frothing outlet shall be equipped. However, if the joint is separated by a firewall with the fireproof effect of at least one hour or the interval is more than 3m, they may be not treated as a single.
(2)The output value of foam water solution of high frothing outlet shall be more than 2 L/min for every square meter of the protected area.
(3)The above-mentioned protected area refers to the area surrounded by 3 times the height of the protected object. But if the height of the protected object is less than 1/3m, then 1/3m shall be used for calculation.

Articles 38, 44, 45, and 51~53 shall be applicable to emergency power source, piping, fittings, roof tank, pressurization and transmission test upon completion, water flow detecting device, actuating device, and deluge valve of foam fire extinguishing equipments.

Spraying area of foam fire extinguishing equipments shall comply with the following provisions:
1.Where foam nozzle is used, each spraying area shall have a floor area of not less than 50m2 and not more than 100m.
2.Where foam water nozzle is used, the spraying area shall account for 1/3 or more of the floor area and not less than 200m2. However, where the floor area is less than 200m2, the spraying area shall be calculated pursuant to the actual floor area.

Water source for foam fire extinguishing equipments shall comply with the following provisions:
1.Where foam nozzle is used, the minimum output value calculated under Article 72 shall be able to ensure spraying continuously in the largest foam spraying area for more than 20 minutes.
2.Where high frothing outlet is used, the output value shall comply with the following:
(1)Where total flooding is employed, foam water solution of the protected area of the maximum floorslabs shall be calculated following the table below and if the protected area hasn’t be equipped with lock device, the solution shall be added by the volume of the leakage foam:
┌────────────┬─────────────────┐
│Type of expansion ratio │Value of foam water solution for │
│ │every cube of the cubage covered │
│ │by foam (m3) │
├────────────┼─────────────────┤
│Type I │ 0.04 │
├────────────┼─────────────────┤
│Type II │ 0.013 │
├────────────┼─────────────────┤
│Type III │ 0.008 │
└────────────┴─────────────────┘
(2)Where local application is used, the minimum output value calculated under Article 73 shall be able to ensure spraying continuously in the largest foam spraying area for over 20 minutes.
3.The capacity of water source for moveable foam fire extinguishing equipments shall be more than the output value of two foam sprinklers simultaneously discharging for 15 consecutive minutes.
The solution calculated under the previous Article 76.2(1) and (2) shall be added by the foam amount to fill the pipe and 20% of total foam water solution.

Water source equipped under Article 76 shall be connected to water pressurization and driving device.
Where fire pump is used as the pressurization and driving device for water sources as described in 76.1 and 2, water output and discharging pressure shall meet the following requirements and emergency power source shall be connected.
1.Water output: two times the minimum output value of the largest foam spraying area where there are two ore more spraying areas.
2.Discharging pressure: shall enable each water fog nozzle in a spraying area at the farthest end of the piping system to maintain a pressure of not less than 1kgf/cm2.
3.Fire pump shall be connected to emergency power source.
Where fire pump is used as the pressurization and driving device for water source described in 76.3, water output and discharging pressure shall meet the following requirements and emergency power source shall be connected.
(1)Water output: not less than 130 l/min where there is only one foam fire hydrant box on a same floor, and not less than 260 l/min where there are two or more foam fire hydrant boxes on a same floor.
(2)Discharging pressure: shall enable each water fog nozzle in a spraying area at the farthest end of the piping system to maintain a pressure of not less than 3.5kgf/cm2.
(3)Fire pump shall be connected to emergency power source.
For the same builiding, if low expansion foam concentration is used and each floor is equipped with both fixed and movable foam fire extinguishing equipments, the piping systems and fire pump could be shared, and the output water flow rate head of the pump and the capacity of the foam concentration tank shall be applicable to the bigger one of the two foam fire extinguishing equipments.

Storage capacity of foam raw liquid shall be calculated according to the water quantity calculated under Article 76 and the concentration ratio of the foam raw solution.

Concentration ratio of foam raw liquid mixing with water shall comply with the following provisions:
1.Protein foam solution: 3% or 6%
2.Synthetic active foam solution: 1% or 3%
3.Aqueous film foam solution: 3% or 6%.

Moveable foam fire extinguishing equipments shall be equipped pursuant to the following provisions:
1.The spraying capacity of each foam aimer on a same floor shall be not less than 100 l/min. Where there are more than two foam fire hydrant boxes on a same floor, the capacity shall be calculated using two sprayers.
2.The spraying pressure of foam aimer shall be more than 3.5kgf/cm2 or 0.35Mpa.
3.Foam raw liquid for moveable foam fire extinguishing equipments shall employ low frothing.
4.Foam fire hydrant box shall be placed within 3m from water hose connector, and a piece of 20m-long or longer water hose and a foam aimer shall be equipped inside the box, and the box surface shall have an area of not less than 0.8m2 and be marked with “Moveable Foam Fire Extinguishing Equipments”, and red indicating lamp for fire pump running shall be installed on the foam fire hydrant box.

Storage tank of foam raw liquid shall be equipped pursuant to the following provisions:
1.Liquid level gauge or metering bar obviously indicating the liquid volume shall be equipped.
2.Pressure gauge shall be attached for those who are pressurized at other times.
3.Tank shall be located in places where the temperature is less than 40℃ without direct sunshine.
4.Effective shockproof measures shall be taken.

Any of the following spraying patterns may be selected for carbon dioxide fire extinguishing systems pursuant to actual requirements:
1.Total flooding: in areas separated by wall, column, slab or ceiling made of nonflammable materials, quantity and location of sprinkler heads and the spraying amount shall be capable of ensuring effective fire extinguishment pursuant to the volume of the portion and characteristics of the protected objects. The opening shall be equipped with an automatic closing device unless the leakage at the opening can be made up effectively.
2.Local area spraying: sprinkler heads shall be allocated pursuant to the shape, construction, quantity and property of the protected objects, and the number, location and spraying volume of nozzles shall be capable of ensuring effective fire extinguishment.
3.Movable application: The horizontal distance from the hose connector to any part of the protected subject shall be no more than 15m.
By agent type, Inert Gas Fire Extinguishing systems include Nitrogen (here-after referred to as IG-100); Argon (hereafter referred to as IG-01); 50-50 Nitrogen-Argon Mixture (hereafter referred to as IG-55); and 52-40-8 Ni-trogen-Argon-CO2 mixture (hereafter referred to as IG-541).
Inert Gas Fire Extinguishing systems are limited to total flooding only; the device is applicable to the specifications of Subparagraph 1 of Paragraph 1 in the text. Opening of the protected area shall be provided with an auto-matic closing device, and the opening shall be automatically closed prior to discharging the agent.

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• Article 83.pdf

Theoretical concentration of the Inert Gas Fire Extinguisher agent shall be determined by tests; it shall reach design concentration within a fixed protection space and maintain the concentration for a certain duration of time.
Design concentration of the Inert Gas Fire Extinguisher agent shall comply with the following regulations:
1.Design Concentration:
(1)Theoretical concentration multiplied by at least 1.2 (safety factor).
(2)For frequently occupied places, the maximum concentration of dosage shall be limited to 52%.
2.For protected subjects being placed containing flammable liquids, the design concentration shall be [theoretical concentration] x [1.3 or higher] safety factor.
3.For protected subjects including places having energized electrical devices, the design concentration shall be [theoretical concentration] x [1.35 or higher] safety factor. For places with energized electrical hazards greater than 480 volts that continuously energized following discharge, the design concentration shall comply with values approved by central authorities.

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• Article 83-2.pdf

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• Article 84.pdf

Where total flooding or local application is used, the venting devices inside the protected area shall stop running before the extinguishing medium is sprayed.

Opening of the area protected by total flooding CO2 fire extinguishing systems shall be provided according to the following requirements:
1.The opening may not be located toward the safety stairway, special safety stairway, emergency elevator well or other similar places.
2.The opening proportion below 2/3 of its height above the floor shall be automatically closed prior to the spray of extinguishing agent.
3.In telecom machine rooms, total area of the opening without an automatic closing device shall not exceed 1% of the area of enclosing walls. For other places, the area without an automatic closing device shall not exceed 10% of the volume of the protected area or the area of enclosing walls, whichever is smaller.
The “area of enclosing walls” mentioned in the previous Subparagraph 3 re-fers to the summation of areas of walls, floors and ceilings of the protected area.

Containers for storing CO2 and Inert Gas agents shall be provided pursuant to the following provisions:
1.Filling of container shall comply with the following regulations:
(1)Filling ratio shall be more than 1.5 and less than 1.9 for high-pressure CO2 extinguishing systems, and more than 1.1 and less than 1.4 for low-pressure ones.
(2)Filling pressure of Inert Gas Fire Extinguishing systems shall be no more than 300kg/cm2 or 30MPa at 15°C.
2.Storage places of containers shall comply with the following regulations:
(1)Outside the protected area.
(2)In places where the temperature is lower than 40℃ and seldom varies.
(3)Should not be placed under direct sunshine or rain.
3.Safety device of the container shall comply with National Standard CNS 11176 specifications or be equivalent to or better than that approved by central authorities.
4.Container Valve of high-pressure CO2 or Inert Gas fire extinguisher shall comply with National Standard CNS10848 and CNS10849 regulations, or be equivalent to or better than that approved by central authorities.
5.Low-pressure CO2 container shall be equipped with hydrograph and pressure gauge, and pressure alarm device, an alert alarm should be made when pressure exceeds 23kgf/cm2 or 2.3Mpa or is lower than 19kgf/cm2 or 1.9Mpa.
6.An automatic refrigerating unit shall be equipped with a low-pressure CO2 container to maintain its internal temperature above -20℃ and below -18℃.
7.The device for controlling the valve of the storage container shall be equipped pursuant to the following provisions:
(1)The device for opening the container valve shall be structured for manual opening.
(2)Where the container can be directly opened with a solenoid valve, and more than 7 containers can be simultaneously opened, two or more solenoid valves shall be equipped to such containers.
8.Effective quakeproof measures shall be taken.
9.Containers shall be marked at conspicuous locations with a type of contained agent, dosage amount, date of manufacture, and name of manufacturer.
The filling ratio mentioned in Subparagraph 1, Item 1 of the previous Par-graph refers to the ratio of container volume (liter) to weight of liquefied gas (kg).

Where gas-actuation is provided in CO2 or Inert Gas fire extinguishing systems, the following provisions shall be observed:
1.Container of actuation gas shall be able to endure a pressure of 250kgf/cm2 or 25Mpa.
2.Container of actuation gas shall have a volume of at least 1 liter; weight of the contained CO2 shall be at least 0.6kg, and the filling ratio should be at least 1.5.
3.Safety device and valve for container of actuation gas shall comply with CNS 11176 specifications or shall have equivalent or better performance approved by the central authorities.
4.Container of actuation gas shall not be used as auto closing device for the protected area at the same time.

Piping of CO2 and Inert Gas fire extinguishing systems shall be installed pursuant to the following provisions:
1.The piping shall be exclusive, and the diameter shall be determined according to flow calculation.
2.Head drop between the lowest piping and highest piping shall be determined according to flow calculation and shall be less than 50m.
In addition to the above regulations, piping of CO2 fire extinguishing sys-tems shall also comply with the following provisions:
1.Seamless steel pipe conforming to CNS 4626 shall be used, where Sch80 pipe or higher shall be for high-pressure application and Sch40 pipe or higher for low-pressure application for the thickness or having equivalent or higher strength; and piping shall be galvanized or treated for corrosion prevention.
2.When copper piping is employed, seamless copper or copper alloy pipes conforming to CNS 5127 specifications or those having equivalent or higher strength shall be used; where the high-pressure type shall endure at least 165kgf/cm2 or 16.5Mpa pressure and low-pressure type at least 37.5kgf/cm2 or 3.75Mpa pressure.
3.Pressure endurance of piping connectors and valves shall be at least 165kgf/cm2 or 16.5Mpa for the high-pressure type and at least 37.5kgf/cm2 or 3.75Mpa for the low-pressure type, with proper anti-corrosion treatment provided.
In addition to Item 1 provisions, piping of Inert Gas Fire Extinguishing sys-tems shall also comply with the following regulations:
1.Sch80 seamless steel pipe conforming to CNS 4626 with equivalent or higher thickness and strength shall be used. However, for secondary side piping provided with pressure regulating devices, steel pipe durable to at least the maximum regulated pressure at 40°C may be used, with the provision of galvanization or corrosion prevention treatment.
2.When copper piping is employed, seamless copper or copper alloy pipes conforming to CNS 5127 specifications or those having equivalent or higher strength shall be used and shall be durable to at least 165kgf/cm2 or 16.5Mpa pressure. However, for secondary side piping provided with pressure regulating devices, steel pipe that is durable to at least the maximum regulated pressure at 40°C may be used.
3.Piping connectors and valves shall be endurable to at least the internal pressure intensity and be provided with proper anti-corrosion treatment.

Selector valve of CO2 and Inert Gas Fire Extinguishing Systems shall be equipped pursuant to the following provisions:
1.Where there are two or more protected areas or objects in the same building and the storage container is shared by the areas or objects, each shall be equipped with a selector valve.
2.Selector valves shall be placed outside the protected areas.
3.Labeled “Selector Valve” and corresponding protected area or object shall be provided clearly.
4.Where storage containers and nozzles are equipped with a selector valve, piping between the container and the selector valve shall be provided with a safety device or breaking plate in accordance with CNS 11176 provisions, or with devices approved by central authorities to have equivalent or better performances.

Manual and automatic activating devices of CO2 and Inert Gas Fire Extinguishing Systems shall be equipped pursuant to the following provisions:
1.Manual actuating device shall meet the following requirements:
(1)Installed outside the protected area at a location that has a clear sight of the internal area and facilitates the operator for evacuation after actuation.
(2)One set for each protected area or subject.
(3)Operating part shall be located 0.8~1.5m above the floor.
(4)Casing shall be painted red or other conspicuous color.
(5)For electrical actuator, provide a power indicator.
(6)The operating switch or lever shall give an alarm sound when operated, and be equipped with an effective protection device made of transparent material.
(7)Name of protected area, operation guide and safety precautions shall be marked nearby.
2.Automatic activating device shall be inductively interlocked with 2 or more fire detector circuits.
The above-mentioned activating device shall be equipped with automatic & manual switching devices pursuant to the following provisions:
1.Placed at positions convenient for operation.
2.Manual and automatic indicating lamps shall be equipped.
3.Switch-over between AUTO and Manual shall only be operable by a key or lever.
4.Operation guide shall be posted near the switching device.

Sound alarm device shall be established pursuant to the following provisions:
1.Alarm shall be made automatically after the manual or automatic device is operated, and may not stop before the extinguishing medium is sprayed out completely.
2.Alarm sound shall be effectively made heard by all the people inside the protected area or object.
3.Sound alarm device used in a total flooding area shall employ human voice, unless there is no person on watch at other times.

Safety device for total flooding of CO2 fire extinguishing systems shall be equipped pursuant to the following provisions:
1.A time delay of no less than 20s shall be provided between the activation of the switch or lever of the device and the opening of the valve of the storing container.
2.When manual activation is adopted, measures shall be taken to prevent spraying of extinguishing agents during the delayed time depicted in the previous Subparagraph.
3.Spraying Indicators shall be installed at gateways of the protected area or other proper locations where the indicator is easy to verify.
Safety devices of Inert Gas fire extinguishing systems shall be equipped pursuant to the following provisions:
1.Measures shall be taken to prevent pressure rise in the protected area based on flow calculation results.
2.Spraying Indicators shall be installed at gateways of the protected area or other proper locations where the indicator is easily observed.

In protected areas using total flooding or local application, the sprayed fire-extinguishing medium shall be discharged to the safety places according to the following provisions:
1.Any of the following discharging patterns may be selected, and the medium shall be sprayed out in an hour.
(1)Where mechanic discharging is used, exhaust blower shall be used dedicatedly and have a discharge capability of 5times/hour. But it may be shared by other equipments if this doesn’t encumber exhaust.
(2)Where natural discharging is used, there shall be an openable opening. The part of the opening toward the outside air (limited to the proportion of the protected area under 2/3 of the height above the floor) shall occupy not less than 10% of the floor area of the protected area, and it shall be easy for the fire extinguishing medium to diffuse.
2.Operating switch of discharging device shall be installed outside the protected area at the location convenient for operation, and indicating shall be equipped nearby.
3.There shall be no remains of fire extinguishing medium that is discharged out the door.

Emergency power source used for total flooding and local application shall employ self-use generating equipments or battery, the capacity of which shall be able to ensure effectively running for at least 1 hour.

In addition to Article 87, Paragraph 1, Subparagraph 1, Item 1, Subparagraph 2, Item 2 and Item 3, Subparagraph 3, Subparagraph 4 and Subparagraph.9, the following provisions shall be applicable to movable spraying of CO2 fire extinguishing systems:
1.Valve of storage container can be switched manually at hose outlet.
2.Storage containers shall be equipped separately at the hose mount.
3.Red indicator shall be equipped near the storing container and labeled with “Movable CO2 Fire Extinguishing System”.
4.Equipment shall be placed at locations less prone to being covered by fumes during a fire.
5.The quantity of fire extinguishing agent sprayed by each nozzle shall be at least 60kg/minute at 20℃.
6.Hose, nozzle and hose reel shall comply with CNS 11177 specifications. Enclosure Integrity Test

Enclosure Integrity Test shall be performed on completion of the protected area of Inert Gas Fire Extinguishing Systems. Pass criterion: at least 85% Design Concentration of agent is maintained within 10 minutes of inert gas discharge.

Labeling specifications of CO2 and Inert Gas Fire Extinguishing System will be further specified by central authorities.

By agent type, Halocarbon Clean Agent Fire Extinguishing Systems include Trifluoromethane (hereafter, HFC-23), Heptafluoropropane (hereafter, HFC-227ea), and Perfluoro(2-methyl-3-pentanone) (hereafter, FK-5-1-12).
The spray pattern of Halocarbon Clean Agent Fire Extinguishing Systems is limited to total flooding. Automatic closing and ventilation of the protected area shall be provided pursuant to Article 82, Paragraph 1, Subparagraph 1, Paragraph 3 and Article 85 specifications.
In addition to the above regulation, measures shall be taken to prevent pres-sure rise inside the protected area. This is exempted if the integrity of the protected area is not affected.

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• Article 97-2.pdf

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• Article 97-3.pdf

Nozzles of Halocarbon Clean Agent Fire Extinguishing Systems shall be equipped pursuant to the following provisions:
1.The nozzles shall be capable of quickly spraying the agent and evenly distributing it throughout the protected area.
2.Discharge pressure of nozzle shall be at least 9kg/cm2 or 0.9Mpa for HFC-23, at least 3 kg/cm2 or 0.3Mpa for HFC-227ea or FK-5-1-12, unless otherwise approved by central authorities.
3.Quantity and type of nozzles shall be determined according to flow calculation.
Dosage of fire extinguishing agent calculated per the above Article shall be sprayed out at least 95% within 10 seconds.

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• Article 97-5.pdf

Piping of Halocarbon Clean Agent Fire Extinguishing Systems shall be installed according to the following regulations:
1.The piping shall be exclusive, and the diameter shall be determined using flow calculation.
2.Head drop between the lowest piping and highest piping shall be determined according to flow calculation and shall be less than 50m.
3.When steel piping is used, seamless steel pipe conforming to CNS 4626 with at least Sch80 thickness shall be used for HFC-23 systems; seamless steel pipe conforming to CNS 4626 with Sch40 or higher thickness or equivalent strength shall be used for HFC-227ea and FK-5-1-12 systems; piping shall be galvanized or treated for corrosion prevention.
4.When copper piping is employed, seamless copper or copper alloy pipes conforming to CNS 5127 specifications or those having equivalent or higher strength and corrosion resistance shall be used
5.Piping connectors and valves shall be endurable to at least the internal pressure intensity and be provided with proper anti-corrosion treatment

Gas actuate Halocarbon Clean Agent Fire Extinguishing Systems are applicable to Article 88 regulations.
Selection switch, actuation device, audio alarm device, safety device and exhaust device of Halocarbon Clean Agent Fire Extinguishing Systems are applicable to provisions of Article 90 to Article 92, Article 93, Paragraph 2, and Article 94.

Emergency Power Supply of Halocarbon Clean Agent Fire Extinguishing Systems shall be provided according to Article 95 provisions.

Enclosure Integrity Test shall be performed on completion of the protected area of Halocarbon Clean Agent Fire Extinguishing Systems. Pass criterion: at least 85% Design Concentration of agent is maintained within 10 minutes of agent discharge.

Labeling specifications of the Halocarbon Clean Agent Fire Extinguishing System will be further specified by central authorities.

Articles 82, 85, 86, 90, 91, 92, 93, 95, and 97 shall govern the spraying pattern, venting device, opening of protected area, selector valve, actuating device, voice alarm device, safety device, emergency power source and indication specifications for dry chemicals fire extinguishing equipments.

Quantity of dry chemicals extinguishing medium shall comply with the following provisions:
1.Quantity of fire extinguishing medium required by total flooding shall be calculated following the table below:
┌─────┬─────┬──────┬─────┬─────┐
│Type of │Type I │Type II │Type III │Type IV │
│dry │ (major │ (Major │ (Major │ (Major │
│chemicals │ingredient│ingredient：│ingredient│ingredient│
│ │：sodium │Potassium │: ammonium│： │
│ │bicarbo- │bicarbonate │dihydrogen│potassium │
│ │nate) │) │phosphate │bicarbo- │
│ │ │ │) │nate and │
│ │ │ │ │urea chem-│
│ │ │ │ │icals) │
├─────┼─────┼──────┼─────┼─────┤
│Quantity │ 0.6 │ 0.36 │ 0.36 │ 0.24 │
│required │ │ │ │ │
│by every │ │ │ │ │
│square │ │ │ │ │
│meter of │ │ │ │ │
│protected │ │ │ │ │
│area │ │ │ │ │
│ (kg/m2) │ │ │ │ │
├─────┼─────┼──────┼─────┼─────┤
│Additional│ 4.5 │ 2.7 │ 2.7 │ 1.8 │
│quantity │ │ │ │ │
│for every │ │ │ │ │
│square │ │ │ │ │
│meter of │ │ │ │ │
│opening │ │ │ │ │
└─────┴─────┴──────┴─────┴─────┘
2.Quantity of fire extinguishing medium required by local application shall comply with the following provisions:
(1)Where flammable solid or flammable liquid is stored in containers with upper openings and flame is limited to one side and the flammable substance is unlikely to fly out of the container in case of fire, the required quantity of fire extinguishing medium shall calculated following the table below:
┌─────────┬─────┬───────┬──────┐
│Type of fire │Type I dry│Type II or III│ Type IV dry│
│extinguishing │chemicals │dry chemicals │ chemicals │
│medium │ │ │ │
├─────────┼─────┼───────┼──────┤
│Quantity required │ 8.8 │ 5.2 │ 3.6 │
│by every square │ │ │ │
│meter of protected│ │ │ │
│object (kg/m2) │ │ │ │
├─────────┼─────┼───────┼──────┤
│Multiple for addi-│ 1.1 │ 1.1 │ 1.1 │
│tional quantity │ │ │ │
├─────────┼─────┴───────┴──────┤
│Remark │Where side length of protected object is│
│ │less than 0.6m, 0.6m shall be used as │
│ │side length for area calculation. │
└─────────┴────────────────────┘
(2)As for places other than described in the former subclause, the required quantity of fire extinguishing medium shall be the quantity for unit protected space calculated following the formula below multiplied by the cubage of the protected space (refers to the space 0.6m from any point of the protected object, also named imaginary protected space). However, if used in telecom machine room, the quantity shall be multiplied by 0.7.
Q=X–Yxa/A
Where, Q is the quantity of fire extinguishing medium for unit cubage of the protected space (kg/m3), the multiple for additional quantity shall comply with the former subclause; a is the total area of the actual walls around the protected object (m2), and A is the total area of the imagined walls around the protected space (imaged protected space) (m2).
Values of X and Y shall comply with the table below:
┌─────────┬─────┬───────┬──────┐
│Type of fire exti-│Type I dry│Type II or III│Type IV dry │
│nguishing medium │chemicals │dry chemicals │chemicals │
├─────────┼─────┼───────┼──────┤
│ X │ 5.2 │ 3.2 │ 2.0 │
├─────────┼─────┼───────┼──────┤
│ Y │ 3.9 │ 2.4 │ 1.5 │
└─────────┴─────┴───────┴──────┘
3.Where moveable application is used, the quantity of fire extinguishing medium required by each spraying aimer shall be not less than the corresponding value in the table below:
┌─────────┬─────┬───────┬──────┐
│Type of fire exti-│Type I dry│Type II or III│Type IV dry │
│nguishing medium │chemicals │dry chemicals │chemicals │
├─────────┼─────┼───────┼──────┤
│Quantity of fire │ 8.8 │ 5.2 │ 3.6 │
│extinguishing │ │ │ │
│medium (kg) │ │ │ │
└─────────┴─────┴───────┴──────┘
4.Where total flooding or local application is used and there are two or more protected areas or objects inside a same building, the quantity of the largest area shall be regarded as the required quantity.

Nozzles for total flooding and local application shall meet the following requirements:
1.Nozzles equipped for total flooding shall be able to make the sprayed medium quickly and evenly distributed into the whole protected area.
2.Spraying pressure of dry chemicals nozzles shall be more than 1kgf/cm2 or 0.1Mpa.
3.The quantity of fire extinguishing medium calculated pursuant to 99.1 or 99.2 shall be sprayed out in 30 seconds.
4.The effective range of nozzles equipped for local application shall cover all surfaces of the protected objects, and the locations shall ensure the flammable substance will not fly outside due to the spraying of the extinguishing medium.

Only Type III dry chemicals may be used as fire extinguishing medium for indoor parking areas.

Storage container of fire extinguishing medium shall be equipped pursuant to the following provisions:
1.Filling ratio shall comply with the table below:
┌─────────┬─────┬───────┬──────┐
│Type of fire exti-│Type I dry│Type II or III│Type IV dry │
│nguishing medium │chemicals │dry chemicals │chemicals │
├─────────┼─────┼───────┼──────┤
│Filling ratio (R) │0.85≦R │1.05≦R≦1.75 │1.5≦R≦2.5 │
│ │≦1.45 │ │ │
└─────────┴─────┴───────┴──────┘
2.Storage containers shall be placed pursuant to the following provisions:
(1)Outside the protected area
(2)In places where the temperature is lower than 40℃ and seldom varies.
(3)May not be placed in direct sunshine or rain.
3.Storage container shall be obviously marked with the quantity and type of the filled extinguishing medium, as well as maximum working pressure (pressurized type only), date of production, and manufacturer.
4.Safety device complied with National Standard CNS No.11176 shall be equipped for the container.
5.Container valve complied with National Standard CNS No.10848 and No.10849 shall be equipped for pressure-maintaining container with an internal pressure more than 10kgf/cm2 or 1Mpa.
6.Discharging device shall be equipped for discharging residual gas in storage container, and washing device for dealing with residual extinguishing medium in matching pipe.
7.Effective quakeproof steps shall be applied.

Container of pressurizing gas shall be located nearby and reliably connected to storage container, and container valve and safety device complied with CNS No. 11176 shall be equipped.

Container of pressurizing or pressure-maintaining gas shall be equipped pursuant to the following provisions:
1.Pressurizing or pressure-maintaining gas shall employ nitrogen or carbon dioxide.
2.Where nitrogen is used as pressurizing gas, the quantity of nitrogen required by every kilogram of dry chemicals shall be 40 liters or more when temperature is 35℃ and air pressure (gauge pressure) is 0kg/cm2 or 0Mpa. Where carbon dioxide is used as pressurizing gas, the quantity of carbon dioxide required by every kilogram of dry chemicals shall be 20 grams or more.
3.Where nitrogen is used as pressure-maintaining gas, the quantity of nitrogen required by every kilogram of dry chemicals shall be more than 10 liters plus the quantity required for washing the piping when temperature is 35℃ and air pressure (gauge pressure) is 0kg/cm2 or 0Mpa. Where carbon dioxide is used, the quantity of carbon dioxide required by every kilogram of dry chemicals shall be not less than 20 grams plus the quantity required for washing the matching pipe.
4.Gas used for washing the pipe shall be stored in different container.
5.Effective quakeproof steps shall be applied.

Piping and valves of dry chemicals fire extinguishing equipments shall be equipped pursuant to the following provisions:
1.Piping
(1)It shall be used dedicatedly and its diameter shall be determined according to the amount of spraying amount of nozzles.
(2)Steel pipe, which is complied with National Standard CNS No. 6445 and has been anti-corrosive treated or has the same or higher strength and corrosion endurance, shall be employed, but seamless steel pipe complied with National Standard CNS No. 4626, wherein the thickness or strength is the same as or higher than that of pipe number SCH40 and anticorrosive treatment like zincing etc has been made, shall be used for pressure-maintaining type when the pressure is more than 25kg/cm2 or 0.25Mpa and less than 42kg/cm2 or 4.2Mpa.
(3)Where copper pipe is used, the copper pipe shall comply with National Standard CNS No. 5127 or have the same or higher strength, and be able to endure a pressure at least 1.5 times the adjustment pressure or the highest pressure.
(4)Drop height between highest matching pipe and lowest matching pipe shall be less than 50m.
(5)Matching pipes shall be distributed evenly so as to ensure the same spraying pressure of each nozzle when spraying at the same time.
(6)Effective quakeproof steps shall be applied.
2.Valves
(1)Valve shall comply with National Standards CNS or have the same or higher strength and corrosion endurance, and anti-corrosion treatment shall have been made.
(2)Location and direction of switch shall be marked.
(3)Manual operating part of relief valve and container valve of pressurizing gas shall be located in safe and accessible places.

The distance between any part of the matching pipe of dry powder fire extinguishing equipments from storage container and the bending part shall be 20 times the pipe diameter or more, unless effective measures have been taken to make the dry chemicals never separated from pressurizing or pressure-maintaining gas.

Pressure regulating device, which can adjust the pressure to under 25kgf/cm2 or 2.5Mpa, shall be equipped for dry chemicals fire extinguishing equipments.

Pressure setting device for pressurized dry powder fire extinguishing equipments shall be equipped pursuant to the following provisions:
1.Relief valve shall be opened when the pressure of storage container meets the set value after actuating device is actuated.
2.Each storage container shall be equipped with pressure setting device.

Pressure-maintaining dry chemicals fire extinguishing equipments shall be equipped with pressure gauge indicating the range of working pressure in green.

Where gas-actuated type is used, the following provisions shall be observed:
1.Container of actuating gas shall be able to endure a pressure of 250kgf/cm2 or 25Mpa.
2.Container of actuating gas shall have a cubage more than 0.27 liter; the weight of contained gas over 145g, and the filling ratio not less than 1.5.
3.Safety device and container valve for container of actuating gas shall comply with National Standard CNS No.11176.
4.Container of actuating gas cannot be used for auto stopping in the protected area at the same time.

Moveable application shall comply with the following provisions in addition to Articles 102.1, 102.2 (2) and (3), 102.3 and 102.4.
1.Valve of storage container may be switched manually at the opening of leather pipe.
2.Storage containers shall be equipped separately at the locations where leather pipes are installed.
3.Red indicating lamp shall be equipped and “Moveable Dry Chemicals Fire Extinguishing Equipments” shall be marked nearby each storage container.
4.The equipments shall be placed where it is inaccessible for fume in case of fire.
5.The quantity of fire extinguishing medium sprayed by each aimer shall comply with the table below:
┌─────────┬─────┬───────┬──────┐
│Type of fire exti-│Type I dry│Type II or III│Type IV dry │
│nguishing medium │chemicals │dry chemicals │chemicals │
├─────────┼─────┼───────┼──────┤
│Quantity sprayed │ 45 │ 27 │ 18 │
│every minute │ │ │ │
│(kg/min) │ │ │ │
└─────────┴─────┴───────┴──────┘
6.Leather pipe, nozzle and pipe carrier of moveable carbon dioxide fire extinguishing equipments shall comply with National Standard No.11177.

Simple automatic fire extinguishing equipments shall be installed based on following regulations.
1.Smoke-discharging pipe should equip with sensor and sprinkler depending on the sectional area, alarming length and wind speed. The equipped number, location and emitting amount should be effectively enough to extinguish fire.
2.When wind speed inside smoke-discharging pipe exceed 5 meter per second, a chemical agent releasing mechanism and linked shutting valves should be installed outside alarming length. Such installation is not required if fire can be effectively extinguished without said valves.
3.Effective range of sprinkler should cover fume hood and smoke-discharging pipe, and the installed location should preclude the possibility for the inflammables to release upon emission of chemical agent.
4.Sprinklers within the range of protection should synchronously emit.
5.Storage cylinders and pressurized gas cylinders should be stored at the ambient temperature below 40C.
Alarming length prescribed in Item (2) of above 5 meters within connecting point between fume hood and smoke-discharging pipe.