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Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. According to the requirements of Document JIANBIAO [2011] No.17 issued by the Ministry of Housing and Urban-Rural Development of the People's Republic of China - Notice on printing and distributing the development and revision plan on engineering construction standards in 2011, the drafting group has revised the former coder through extensive investigation and study, careful summarization of practical experience, and reference to relevant international and foreign advanced standards and on the basis of widely soliciting for opinions. This standard consists of 11 clauses, mainly including: general requirements; terms; fire hazard classifications, fire resistance classification and fire compartment of buildings (structures) of coal-fired power plant; general plane layout of coal-fired power plant area; safe evacuation and structure of buildings (structures) of coal-fired power plant; process system of coal-fired power plant; fire water supply, extinguishing facilities and automatic fire alarm of coal-fired power plant; heating, ventilation and air conditioning of coal-fired power plant; fire power supply and lighting of coal-fired power plant; gas turbine power plant; and substation. The following main contents have been revised: 1. The application scope of the code is adjusted; 2. The fire hazard and fire resistance classification of buildings (structures), the fire prevention measures for key parts in the main power house, the fire resistance of building elements of coal transit system, the fire prevention measures for denitration system, the safe evacuation from buildings, the explosion internal pressure of pulverized coal bunker, the selection and laying of fire cables and power cables, the selection, technical parameters and selection scope of fire fighting, detection and alarm, smoke control and exhaust, evacuation signs and emergency lighting systems of various buildings, etc. are revised and improved; 3. The building types of substation are adjusted and supplemented. The fire protection requirements of underground substation and unattended substation, the fire water consumption in buildings and the setting requirements of automatic fire alarm system are added. The provisions printed in bold type in this standard are compulsory and must be enforced strictly. The Ministry of Housing and Urban-Rural Development is in charge of the administration of this standard and the explanation of the compulsory provisions, the Fire Department of Ministry of Public Security and China Electricity Council are responsible for the routine management, and Northeast Electric Power Design Institute Co., Ltd. is responsible for the explanation of specific technical contents. During the process of implementing this standard, the relevant opinions and advices, whenever necessary, can be posted or passed on to Northeast Electric Power Design Institute Co., Ltd. (Address: No.4368, Renmin Street, Changchun City, 130021, China). Contents 1 General provisions 1 2 Terms 2 3 Fire hazard classifications, fire resistance classification and fire compartment of buildings (structures) of coal-fired power plant 4 4 General plane layout of coal-fired power plant area 8 5 Safe evacuation and structure of buildings (structures) of coal-fired power plant 12 5.1 Safe evacuation from main power house 12 5.2 Safe evacuation from other buildings (structures) 12 5.3 Building structure 13 6 Process system of coal-fired power plant 17 6.1 Coal transit system 17 6.2 Boiler pulverized coal system 18 6.3 Boiler air and flue gas system 22 6.4 Fuel oil system for ignition and combustion-supporting 23 6.5 Steam turbine generator unit 25 6.6 Diesel-generator system 28 6.7 Transformer and other electrical equipment with oil 28 6.8 Cable and cable laying 29 7 Fire water supply, extinguishing facilities and automatic fire alarm of coal-fired power plant 32 7.1 General requirements 32 7.2 Outdoor fire water supply 38 7.3 Indoor fire hydrant and indoor fire water supply volume 40 7.4 Indoor fire water pipe, hydrant and fire water tank 41 7.5 Water spray, water mist, automatic sprinkling and fixed fire monitor extinguishing system 43 7.6 Fire pump house and fire-fighting pool 45 7.7 Fire water drainage 46 7.8 Foam extinguishing system 47 7.9 Gas fire extinguishing system 47 7.10 Gas inerting system 47 7.11 Fire extinguisher 48 7.12 Fire fighting and rescue facilities 50 7.13 Automatic fire alarm and fire equipment control 50 8 Heating, ventilation and air conditioning of coal-fired power plant 52 8.1 Heating 52 8.2 Air conditioning 52 8.3 Ventilation for electronic equipment room 53 8.4 Oil system ventilation 54 8.5 Ventilation and de-dusting of coal transit system 55 8.6 Ventilation of other buildings 56 8.7 Smoke control and exhaust system 56 9 Fire power supply and lighting of coal-fired power plant 58 9.1 Fire power supply 58 9.2 Lighting 59 10 Gas turbine power plant 62 10.1 Fire hazard classifications and fire resistance classification of buildings (structures) 62 10.2 General layout of plant area 63 10.3 Fuel system 64 10.4 Fire protection requirements for gas turbine 65 10.5 Fire water supply, fixed fire extinguishing facilities and automatic fire alarm 65 10.6 Others 66 11 Substation 68 11.1 Fire hazard classification and fire resistance classifications, fire separation distance and firefighting roads of buildings (structures) 68 11.2 Safe evacuation and construction of buildings (structures) 73 11.3 Transformer and other electrical equipment with oil 74 11.4 Cable and cable laying 75 11.5 Fire water supply, fire extinguishing facilities and automatic fire alarm 76 11.6 Heating, ventilation and air conditioning 82 11.7 Fire power supply and emergency lighting 82 Explanation of wording in this standard 85 List of quoted standards 86 1 General provisions 1.0.1 This standard is formulated with a view to ensuring the fire safety of fossil fuel power plants and substations, preventing fires or reducing fire hazards, and ensuring personal and property safety. 1.0.2 This standard is applicable to the following constructed, renovated and extended fossil fuel power plants and substations: 1 Coal-fired power plants with 1,000MW and below units (hereinafter referred to as "coal-fired power plants"); 2 Simple-cycle or gas-steam combined cycle power plants with standard rated output of 400MW and below of gas turbine (hereinafter referred to as "gas turbine power plants"); 3 Substations and converter stations with voltage of 1,000kV and below. 1.0.3 The design of fire protection for fossil fuel power plants and substations shall actively use new technologies, new processes, new materials and new equipment to achieve safety and serviceability, technical advancement and economic rationality in combination with the specific conditions of the project. 1.0.4 In addition to this standard, the design of fire protection for fossil fuel power plants and substations shall also comply with those stipulated in the current relevant standards of the nation. 2 Terms 2.0.1 main power house the main power house of coal-fired power plant refers to a plant building consisting of steam turbine room, central control building (turbine-boiler control room), deaerator bay, coal bunker bay, boiler house, etc. the main power house of gas turbine power plant refers to a plant building consisting of gas turbine room, steam turbine room, central control room, heat recovery steam generator, etc. 2.0.2 central control building a plant building in a fossil fuel power plant that centrally controls two or more units and auxiliary systems, including central control room, electronic equipment room, cable interlayer, battery room, shift room, auxiliary rooms, etc. 2.0.3 electrical control building a building in a fossil fuel power plant that centrally controls the main electrical systems under the non-unit control mode, or a building in a substation that centrally controls the main electrical systems and equipment, which generally consists of the main control room, electronic equipment room, cable interlayer, battery room, shift room, auxiliary rooms, etc. 2.0.4 network control building a building in a fossil fuel power plant that independently controls the power network system or equipment of a booster station, which, usually an unattended building, generally consists of electronic equipment room, battery room, auxiliary rooms, etc. 2.0.5 switchgear control building a building in a fossil fuel power plant that controls the main electrical equipment of the main switch station and auxiliary switch station 2.0.6 power distribution building a building in a fossil fuel power plant that receives, distributes and controls electric energy, which generally consists of indoor power distribution unit room, high- and low-voltage power distribution rooms, etc. 2.0.7 special warehouse warehouse for storing cylinders that contain lubricating oil and hydrogen, oxygen, acetylene or other gases 2.0.8 general warehouse warehouse for storing precision instruments, steels and general equipment, including general equipment warehouse, precision equipment warehouse, steel warehouse, auxiliary room, etc. 2.0.9 indoor coal yard coal storage building with fully closed roof and envelop enclosure, including circular coal yard and strip coal yard 2.0.10 liquid ammonia area areas where liquid ammonia is unloaded, stored and prepared when liquid ammonia is used as denitration reductant, including power distribution room, ammonia unloading compressor, liquid ammonia storage tank, liquid ammonia evaporator, ammonia buffer tank, ammonia dilution tank, waste water pool and waste water delivery pump, pipeline, valve, etc. 2.0.11 valve hall building equipped with converter valves. A valve hall is usually equipped with the converter valves of one pole and the related equipment 3 Fire hazard classifications, fire resistance classification and fire compartment of buildings (structures) of coal-fired power plant 3.0.1 The fire hazards of production shall be classified according to factors such as the nature and quantity of substances used or generated in production, while the fire hazards of stored articles shall be classified according to factors such as the nature of stored articles and the content of combustible substances in stored articles, and all of them shall be in accordance with those specified in Table 3.0.1. Table 3.0.1 Fire hazard classifications and fire resistance classification of buildings (structures) Name of building (structure) Fire hazard classification Fire resistance classification Main power house (steam turbine house, deaerator bay, central control building, coal bunker bay and boiler house) D Class II Suction fan room D Class II Dust collection structure D Class II Chimney D Class II Air cooling platform E Class II Desulfurization process building, limestone pulping building, limestone milling building and gypsum warehouse E Class II Desulfurization control building D Class II Absorption tower E Class III Booster fan room E Class II Indoor coal unloading unit C Class II Coal crusher room, coal conveying transfer station and coal blending building C Class II Closed coal transport trestle and coal transport tunnel C Class II Silo, dry coal shed, thawing room and indoor coal yard C Class II Non-combustible material conveying transfer station E Class II Non-combustible material conveying trestle E Class II Oil supply/discharge pump house and trestle (diesel oil, heavy oil and residual oil) C Class II Oil treatment room C Class II Electrical control building, network control building, microwave building and switchgear control building C Class I Indoor power distribution building (containing equipment with oil filling capacity > 60kg each) C Class II Indoor power distribution building (containing equipment with oil filling capacity ≤60kg each) D Class II Oil-immersed transformer room C Class I Bank side pump house and circulating water pump house E Class II Slurry and ash pump house E Class II Ash storage E Class III Domestic water and fire pump house and integrated water pump house E Class II Stabilizer room and dosing equipment room E Class II Water intake building (structure) E Class II Cooling tower E Class III Chemical water treatment room and circulating water treatment room E Class II Hydrogen supply (generation) station A Class II Start-up boiler house D Class II Air compressor room (screw type without lubricating oil or oil injection) E Class II Air compressor room (with lubricating oil) D Class II Thermal, electrical and metal laboratories D Class II Overpass E Class II Transformer overhaul room C Class II Rainwater and sewage (waste water) pump house E Class II Overhaul workshop E Class II Sewage (waste water) treatment structure E Class II Water supply treatment structure E Class II Cable tunnel C Class II Diesel generator room C Class II Ammonia area control room D Class II Ammonia unloading compressor room B Class II Liquid ammonia gasification room B Class II Special warehouse C Class II General warehouse E Class II Material shed E Class II Coal bulldozer house D Class II Note: When the special warehouse stores the cylinders that contain hydrogen, oxygen, acetylene or other gases, its fire hazard shall be determined according to the articles with higher level of fire hazard. 3.0.2 The combustion performance and fire resistance rating of building elements of power plants shall comply with the relevant requirements of the current national standard GB 50016 Code for fire protection design of buildings. The boiler house of the main power house may be built with metal load-bearing elements without fire protection. 3.0.3 The maximum allowable building area of fire compartment in the aboveground part of the main power house shall meet the following requirements: 1 In case of 600MW and below units, it shall not be greater than the building area of 6 units; 2 In case of units above 600MW and 1,000MW units, it shall not be greater than the building area of 4 units; 3 In the underground part, it shall not be greater than the building area of 1 unit. 3.0.4 When the underground part of the indoor coal unloading unit is connected with the underground transfer station or coal transport tunnel, the maximum allowable building area of the fire compartment shall not be greater than 3,000m2. 3.0.5 The maximum allowable occupied area of each indoor coal yard shall not be greater than 50,000m2. The area of each fire compartment should not be greater than 12,000m2, or otherwise the fire compartments shall be separated by a channel with a width of not less than 10m or a fire-proof wall that is 3m higher than the surface height of the coal pile. 3.0.6 For the main power house and coal transport trestle whose load-bearing elements are non-combustible components, when their non-load-bearing exterior walls are non-combustible components, their fire resistance rating is unlimited; when their non-load-bearing exterior walls are difficult-combustible components, their fire resistance rating shall not be less than 0.50h. 3.0.7 Partition wall made of non-combustible components shall be set between deaerator bay and coal bunker bay or boiler house. Partition wall made of non-combustible components shall be set between steam turbine room and combined deaerator and coal bunker bay or boiler house. The fire resistance rating of these partition walls shall not be less than 1.00h. 3.0.8 For central control room, main control room, network control room, steam turbine control room, boiler control room and computer room, their ceilings and wall surfaces shall be decorated with Class A decoration materials, and other parts with decoration materials not lower than Class B1. 3.0.9 The interior wall of cable interlayer in the building of power plant shall be made of non-combustible components with a fire resistance rating of not less than 1.00h. 3.0.10 The envelop enclosures of enclosed trestle, transfer station and other coal transport buildings shall be made of incombustible materials. When no automatic fire extinguishing system is set, fire protection measures shall be taken for their steel structures. 3.0.11 When the indoor coal yard is of steel structure, it shall meet the following requirements: 1 Fire protection measures shall be taken for the load-bearing elements of steel structure within a range of 3m or less from the coal pile surface, and the fire resistance rating shall not be less than 2.50h; 2 Heat insulation measures shall be taken for the concrete retaining wall in contact with coal under the surface of coal pile. 3.0.12 The number of floors and the maximum allowable building area of fire compartments of other plant buildings shall comply with the relevant requirements of the current national standard GB 50016 Code for fire protection design of buildings. 4 General plane layout of coal-fired power plant area 4.0.1 The plant area shall be divided into key fire prevention areas. The division of key fire prevention areas and the main buildings (structures) in these areas should be in accordance with those specified in Table 4.0.1. Table 4.0.1 Key fire prevention areas and main buildings (structures) in the areas Key fire prevention area Main buildings (structures) in the area Main power house area Main power house, dust collector, suction fan room, chimney, desulfurization device, and various oil-immersed transformers near steam turbine room Power distribution unit area Electrical equipment with oil for power distribution unit, network control building or switchgear control building Ignition tank area Oil supply/discharge pump house, oil storage tank and oily sewage treatment station Coal yard area Coal yard, transfer station, coal unloading device, coal transport tunnel, coal transport trestle and silo Hydrogen supply (generation) station area Hydrogen production room and hydrogen tank Liquid ammonia area Liquid ammonia storage tank and power distribution room Fire pump house area Fire pump house and reservoir Material warehouse area General warehouse, special warehouse and material shed 4.0.2 Fire separation measures shall be taken for cable trench (cable tunnel), coal transport trestle, coal transport tunnel and oil pipe trench between key fire prevention areas. 4.0.3 Circular fire lanes shall be set up around the main power house, ignition tank area, liquid ammonia area and coal yard, and fire lanes should be set up around other key fire prevention areas. For units with a capacity per unit of 300MW or above, a single lane shall be set up between the back of the boiler and the dust collector. Traffic roads may be used as fire lanes. When it is difficult to set up circular fire lanes around the main power house, ignition tank area, liquid ammonia area and coal yard of coal-fired power plants in mountainous areas and expanded coal-fired power plants, the end-type fire lanes may be set up along the long sides, and the turning lanes or turnarounds shall be set up. The area of the turnaround shall not be less than 12m×12m; for the purpose of use by large fire trucks, its area shall not be less than 18m×18m. 4.0.4 At least one fire truck climbing operation site shall be arranged at the fixed end and the expansion end of the main power house, and one fire truck climbing operation site shall be arranged between every two units outside the long side wall of the steam turbine room. For other buildings in the plant with a building height of greater than 24m, the fire truck climbing operation site shall be arranged along at least one long side, or the bottom edge of 1/4 of the peripheral length and not less than one long side length. The length and width of the fire truck climbing operation site shall not be less than 15m and 10m, respectively. 4.0.5 The clear width of fire lane shall not be less than 4.0m and the slope should not be greater than 8%. In case of obstacles such as pipe racks and trestles over the road, the clear height of fire lane should not be less than 5.0m, and shall not be less than 4.5m in difficult areas. 4.0.6 There shall be no less than two entrances and exits in the plant area, and their positions shall be convenient for fire trucks to enter and exit. 4.0.7 The distance between buildings (structures) inside the plant area fence and other buildings (structures) outside the fence shall comply with the relevant requirements of the current national standard GB 50016 Code for fire protection design of buildings. 4.0.8 The layout of fire station shall meet the following requirements: 1 The fire station shall be arranged in a moderate position in the plant area, avoiding the main pedestrian roads, so as to ensure that the fire trucks can reach the fire scene conveniently and quickly; 2 The main entrance of the garage of fire station shall face the road in plant area, and should not be less than 15.0m away from the edge of the road. 4.0.9 The distance from oil-immersed transformer to steam turbine room, indoor power distribution building, electrical control building, central control building and network control building shall not be less than 10m; when meeting the requirements of 5.3.10, the distance may be appropriately reduced. 4.0.10 When the plant area is arranged vertically in a stepped manner, the combustible liquid storage tank area should not be adjacently arranged on the steps higher than the important facilities or staff concentration areas of the whole plant. When it is really necessary to adjacently arrange it on the steps higher than the above places, measures shall be taken to prevent the spread of fire and the dispersion of combustible liquid. 4.0.11 The layout of ignition tank area shall meet the following requirements: 1 It shall be arranged separately; 2 The ignition tank area shall be surrounded by a 1.8m-high fence; when the plant area fence is used as the fence for the ignition tank area, the plant area fence of this section shall be a 2.5m-high solid fence; 3 The design of ignition tank area shall meet the relevant requirements of the current national standard GB 50074 Code for design of oil depot. 4.0.12 The layout of hydrogen generation station and hydrogen supply station shall meet the following requirements: 1 They should be arranged as independent buildings (structures); 2 They shall be surrounded by non-combustible solid fence with a height of not less than 2.5m; 3 The design of hydrogen generation station and hydrogen supply station shall meet the relevant requirements of the current national standard GB 50177 Design code for hydrogen station. 4.0.13 The layout of liquid ammonia area shall meet the following requirements: 1 The liquid ammonia area shall be separately arranged at the edge of the plant area with good ventilation conditions, avoiding the staff concentration areas and the main people flow entrances/exits; and it should be located on the windward side of the annual minimum frequency wind direction in the plant area; 2 The liquid ammonia area shall be surrounded by a non-combustible solid fence with a height of not less than 2.2m; when the plant area fence is used as the fence for the liquid ammonia area, the plant area fence of this section shall be non-combustible solid fence with a height of not less than 2.5m; 3 The liquid ammonia storage tank shall be provided with fire dike, and the arrangement of fire dike shall meet the relevant requirements of the current national standards GB 50016 Code for fire protection design of buildings and GB 50351 Code for design of fire-dike in storage tank farm. 4.0.14 The generic layout of pipelines and power lines in the plant area shall meet the following requirements: 1 Classes I, II and III liquid pipelines and combustible gas pipelines should be laid overhead; the pipelines laid along the ground or on low supports shall not hinder the passage of fire trucks; 2 Classes I, II and III liquid pipelines and combustible gas pipelines shall not pass through unrelated buildings, structures, production devices and storage tank areas; 3 The overhead power lines shall not cross the roofs built of combustible materials, Categories A and B buildings (structures), Classes I, II and III liquid storage tank areas or combustible gas storage tank areas. 4.0.15 The fire separation distance between buildings (structures) and equipment in the plant area shall not be less than those specified in Table 4.0.15 (see the insert at the end of the book); and the fire separation distance between high-rise plant buildings and other plant buildings in the plant area shall be increased by 3m on the basis of those specified in Table 4.0.15. 4.0.16 The fire separation distance between Categories A and B plant buildings and important public buildings should not be less than 50m. 4.0.17 When the same main power house is arranged in rectangular shape or E shape, the fire separation distance between two adjacent wings shall comply with the relevant requirements of the current national standard GB 50016 Code for fire protection design of buildings. 1 General provisions 2 Terms 3 Fire hazard classifications, fire resistance classification and fire compartment of buildings (structures) of coal-fired power plant 4 General plane layout of coal-fired power plant area 5 Safe evacuation and structure of buildings (structures) of coal-fired power plant 5.1 Safe evacuation from main power house 5.2 Safe evacuation from other buildings (structures) 5.3 Building structure 6 Process system of coal-fired power plant 6.1 Coal transit system 6.2 Boiler pulverized coal system 6.3 Boiler air and flue gas system 6.4 Fuel oil system for ignition and combustion-supporting 6.5 Steam turbine generator unit 6.6 Diesel-generator system 6.7 Transformer and other electrical equipment with oil 6.8 Cable and cable laying 7 Fire water supply, extinguishing facilities and automatic fire alarm of coal-fired power plant 7.1 General requirements 7.2 Outdoor fire water supply 7.3 Indoor fire hydrant and indoor fire water supply volume 7.4 Indoor fire water pipe, hydrant and fire water tank 7.5 Water spray, water mist, automatic sprinkling and fixed fire monitor extinguishing system 7.6 Fire pump house and fire-fighting pool 7.7 Fire water drainage 7.8 Foam extinguishing system 7.9 Gas fire extinguishing system 7.10 Gas inerting system 7.11 Fire extinguisher 7.12 Fire fighting and rescue facilities 7.13 Automatic fire alarm and fire equipment control 8 Heating, ventilation and air conditioning of coal-fired power plant 8.1 Heating 8.2 Air conditioning 8.3 Ventilation for electronic equipment room 8.4 Oil system ventilation 8.5 Ventilation and de-dusting of coal transit system 8.6 Ventilation of other buildings 8.7 Smoke control and exhaust system 9 Fire power supply and lighting of coal-fired power plant 9.1 Fire power supply 9.2 Lighting 10 Gas turbine power plant 10.1 Fire hazard classifications and fire resistance classification of buildings (structures) 10.2 General layout of plant area 10.3 Fuel system 10.4 Fire protection requirements for gas turbine 10.5 Fire water supply, fixed fire extinguishing facilities and automatic fire alarm 10.6 Others 11 Substation 11.1 Fire hazard classification and fire resistance classifications, fire separation distance and firefighting roads of buildings (structures) 11.2 Safe evacuation and construction of buildings (structures) 11.3 Transformer and other electrical equipment with oil 11.4 Cable and cable laying 11.5 Fire water supply, fire extinguishing facilities and automatic fire alarm 11.6 Heating, ventilation and air conditioning 11.7 Fire power supply and emergency lighting Explanation of wording in this standard List of quoted standards 1 总则 1.0.1 为确保火力发电厂和变电站的消防安全，预防火灾或减少火灾危害，保障人身和财产安全，制订本标准。 1.0.2 本标准适用于下列新建、改建和扩建的火力发电厂、变电站： 1 1000MW级机组及以下的燃煤火力发电厂(以下简称“燃煤电厂”)； 2 燃气轮机标准额定出力400MW级及以下的简单循环或燃气-蒸汽联合循环电厂(以下简称为“燃机电厂”)； 3 电压为1000kV级及以下的变电站、换流站。 1.0.3 火力发电厂和变电站的消防设计应结合工程具体情况，积极采用新技术、新工艺、新材料和新设备，做到安全适用、技术先进、经济合理。 1.0.4 火力发电厂与变电站的防火设计除应符合本标准外，尚应符合国家现行有关标准的规定。 2 术语 2.0.1 主厂房 main power house 燃煤电厂的主厂房系由汽机房、集中控制楼(机炉控制室)、除氧间、煤仓间、锅炉房等组成的厂房。 燃机电厂的主厂房系由燃气轮机房、汽机房、集中控制室及余热锅炉等组成的厂房。 2.0.2 集中控制楼 central control building 火力发电厂中对两台及以上的机组及辅助系统进行集中控制的厂房。包括集中控制室、电子设备间、电缆夹层、蓄电池室、交接班室及辅助用房等。 2.0.3 主控制楼 electrical control building 火力发电厂中在非单元制控制方式下对主要电气系统进行集中控制的建筑，变电站中对主要电气系统、设备进行集中控制的建筑。一般由主控制室、电子设备间、电缆夹层、蓄电池室、交接班室及辅助用房等组成。 2.0.4 网络控制楼 network control building 火力发电厂中对升压站的电力网络系统或设备单独进行控制的建筑。一般由电子设备间、蓄电池室及辅助用房等组成，通常为无人值守的建筑。 2.0.5 网络继电器室 switchgear control building 火力发电厂中对主开关站、辅助开关站的主要电气设备进行控制的建筑。 2.0.6 配电装置楼 power distribution building 火力发电厂中接受、分配和控制电能的建筑。一般由屋内配电装置室、高低压配电间等组成。 2.0.7 特种材料库 special warehouse 存放润滑油和氢、氧、乙炔等气瓶的库房。 2.0.8 一般材料库 general warehouse 存放精密仪器、钢材、一般器材的库房，包括一般器材库、精密器材库、钢材库及辅助用房等。 2.0.9 室内贮煤场 indoor coal yard 屋顶和外围护结构全部封闭的贮煤建筑，包括圆形煤场、条形煤场。 2.0.10 液氨区 liquid ammonia area 采用液氨作为脱硝还原剂时，液氨卸料、储存及制备氨气的区域，包括配电间、卸氨压缩机、液氨储罐、液氨蒸发器、氨气缓冲罐、氨气稀释罐、废水池及废水输送泵、管路及阀门等。 2.0.11 阀厅 valve hall 设置换流阀的建筑物，通常一个阀厅布置一个极的换流阀和相关设备。 3 燃煤电厂建(构)筑物的火灾危险性 分类、耐火等级及防火分区 3.0.1 生产的火灾危险性应根据生产中使用或产生的物质性质及其数量等因素分类，储存物品的火灾危险性应根据储存物品的性质和储存物品中的可燃物数量等因素分类，并均应符合表3.0.1的规定。 表3.0.1 建(构)筑物的火灾危险性分类及其耐火等级 建(构)筑物名称 火灾危险性分类 耐火等级 主厂房(汽机房、除氧间、集中控制楼、煤仓间、锅炉房) 丁 二级 吸风机室 丁 二级 除尘构筑物 丁 二级 烟囱 丁 二级 空冷平台 戊 二级 脱硫工艺楼、石灰石制浆楼、石灰石制粉楼、石膏库 戊 二级 脱硫控制楼 丁 二级 吸收塔 戊 三级 增压风机室 戊 二级 屋内卸煤装置 丙 二级 碎煤机室、运煤转运站及配煤楼 丙 二级 封闭式运煤栈桥、运煤隧道 丙 二级 筒仓、干煤棚、解冻室、室内贮煤场 丙 二级 输送不燃烧材料的转运站 戊 二级 输送不燃烧材料的栈桥 戊 二级 供、卸油泵房及栈台(柴油、重油、渣油) 丙 二级 油处理室 丙 二级 主控制楼、网络控制楼、微波楼、网络继电器室 丙 一级 屋内配电装置楼(内有每台充油量＞60kg的设备) 丙 二级 屋内配电装置楼(内有每台充油量≤60kg的设备) 丁 二级 油浸变压器室 丙 一级 岸边水泵房、循环水泵房 戊 二级 灰浆、灰渣泵房 戊 二级 灰库 戊 三级 生活、消防水泵房，综合水泵房 戊 二级 稳定剂室、加药设备室 戊 二级 取水建(构)筑物 戊 二级 冷却塔 戊 三级 化学水处理室，循环水处理室 戊 二级 供氢站、制氢站 甲 二级 启动锅炉房 丁 二级 空气压缩机室(无润滑油或不喷油螺杆式) 戊 二级 空气压缩机室(有润滑油) 丁 二级 热工、电气、金属试验室 丁 二级 天桥 戊 二级 变压器检修间 丙 二级 雨水、污(废)水泵房 戊 二级 检修车间 戊 二级 污(废)水处理构筑物 戊 二级 给水处理构筑物 戊 二级 电缆隧道 丙 二级 柴油发电机房 丙 二级 氨区控制室 丁 二级 卸氨压缩机室 乙 二级 液氨气化间 乙 二级 特种材料库 丙 二级 一般材料库 戊 二级 材料棚库 戊 二级 推煤机库 丁 二级 注：当特种材料库储存氢、氧、乙炔等气瓶时，火灾危险性应按储存火灾危险性较大的物品确定。 3.0.2 发电厂建筑物构件的燃烧性能和耐火极限应符合现行国家标准《建筑设计防火规范》GB 50016的有关规定，主厂房的锅炉房可采用无防火保护的金属承重构件。 3.0.3 主厂房地上部分防火分区的最大允许建筑面积应符合下列规定： 1 600MW级及以下机组不应大于6台机组的建筑面积； 2 600MW级以上机组、1000MW级机组不应大于4台机组的建筑面积； 3 其地下部分不应大于1台机组的建筑面积。 3.0.4 当屋内卸煤装置的地下部分与地下转运站或运煤隧道连通时，其防火分区的最大允许建筑面积不应大于3000m2。 3.0.5 每座室内贮煤场最大允许占地面积不应大于50000m2。每个防火分区面积不宜大于12000m2，当防火分区面积大于12000m2时，防火分区之间应采用宽度不小于10m的通道或高度大于堆煤表面高度3m的防火墙进行分隔。 3.0.6 承重构件为不燃烧体的主厂房及运煤栈桥，其非承重外墙为不燃烧体时，其耐火极限不限；为难燃烧体时，其耐火极限不应小于0.50h。 3.0.7 除氧间与煤仓间或锅炉房之间应设置不燃烧体的隔墙。汽机房与合并的除氧煤仓间或锅炉房之间应设置不燃烧体的隔墙。隔墙的耐火极限不应小于1.00h。 3.0.8 集中控制室、主控制室、网络控制室、汽机控制室、锅炉控制室和计算机房，其顶棚和墙面应采用A级装修材料，其他部位应采用不低于B1级的装修材料。 3.0.9 发电厂建筑物内电缆夹层的内墙应采用耐火极限不小于1.00h的不燃烧体。 3.0.10 封闭式栈桥、转运站等运煤建筑围护结构应采用不燃性材料，当未设置自动灭火系统时，其钢结构应采取防火保护措施。 3.0.11 室内贮煤场采用钢结构时，应符合下列规定： 1 堆煤表面距离钢结构构件小于或等于3m范围内的钢结构承重构件应采取防火保护措施，且耐火极限不应小于2.50h； 2 堆煤表面下与煤接触的混凝土挡墙应采取隔热措施。 3.0.12 其他厂房的层数和防火分区的最大允许建筑面积应符合现行国家标准《建筑设计防火规范》GB 50016的有关规定。 4 燃煤电厂厂区总平面布置 4.0.1 厂区应划分重点防火区域。重点防火区域的划分及区域内的主要建(构)筑物宜符合表4.0.1的规定。 表4.0.1 重点防火区域及区域内的主要建(构)筑物 重点防火区域 区域内主要建(构)筑物 主厂房区 主厂房、除尘器、吸风机室、烟囱、脱硫装置、靠近汽机房的各类油浸变压器 配电装置区 配电装置的带油电气设备、网络控制楼或继电器室 点火油罐区 供卸油泵房、储油罐、含油污水处理站 贮煤场区 贮煤场、转运站、卸煤装置、运煤隧道、运煤栈桥、简仓 制氢站、供氢站区 制氢间、氢气罐 液氨区 液氨储罐、配电间 消防水泵房区 消防水泵房、蓄水池 材料库区 一般材料库、特种材料库、材料棚库 4.0.2 重点防火区域之间的电缆沟(电缆隧道)、运煤栈桥、运煤隧道及油管沟应采取防火分隔措施。 4.0.3 主厂房、点火油罐区、液氨区及贮煤场周围应设置环形消防车道，其他重点防火区域周围宜设置消防车道。对单机容量为300MW及以上的机组，在炉后与除尘器之间应设置单车车道。消防车道可利用交通道路。当山区及扩建燃煤电厂的主厂房、点火油罐区、液氨区及贮煤场周围设置环形消防车道有困难时，可沿长边设置尽端式消防车道，并应设回车道或回车场。回车场的面积应不小于12m×12m；供大型消防车使用时，不应小于18m×18m。 4.0.4 主厂房应至少在固定端和扩建端各布置一处消防车登高操作场地，在汽机房长边墙外侧每两台机组之间应布置一处消防车登高操作场地。建筑高度大于24m的厂内其他建筑物应至少沿一个长边，或周边长度的1/4且不小于一个长边长度的底边连续布置消防车登高操作场地。消防车登高操作场地的长度和宽度分别不应小于15m和10m。 4.0.5 消防车道的净宽度不应小于4.0m，坡度不宜大于8％。道路上空遇有管架、栈桥等障碍物时，其净高不宜小于5.0m，在困难地段不应小于4.5m。 4.0.6 厂区的出入口不应少于两个，其位置应便于消防车出入。 4.0.7 厂区围墙内的建(构)筑物与围墙外其他建(构)筑物的间距，应符合现行国家标准《建筑设计防火规范》GB 50016的有关规定。 4.0.8 消防站的布置应符合下列规定： 1 消防站应布置在厂区的适中位置，避开主要人流道路，保证消防车能方便、快速地到达火灾现场； 2 消防站车库正门应朝向厂区道路，距厂区道路边缘不宜小于15.0m。 4.0.9 油浸变压器与汽机房、屋内配电装置楼、主控楼、集中控制楼及网控楼的间距不应小于10m；当符合本标准第5.3.10条的规定时，其间距可适当减小。 4.0.10 厂区采用阶梯式竖向布置时，可燃液体储罐区不宜毗邻；布置在高于全厂重要设施或人员集中场所的台阶上。确需毗邻布置在高于上述场所的台阶上时，应采取防止火灾蔓延和可燃液体流散的措施。 4.0.11 点火油罐区的布置应符合下列规定： 1 应单独布置； 2 点火油罐区四周应设置1.8m高的围墙；当利用厂区围墙作为点火油罐区的围墙时，该段厂区围墙应为2.5m高的实体围墙； 3 点火油罐区的设计应符合现行国家标准《石油库设计规范》GB 50074的有关规定。 4.0.12 制氢站、供氢站的布置应符合下列规定： 1 宜布置为独立建(构)筑物； 2 制氢站、供氢站四周应设置不低于2.5m高的不燃烧体实体围墙； 3 制氢站、供氢站的设计应符合现行国家标准《氢气站设计规范》GB 50177的有关规定。 4.0.13 液氨区的布置应符合下列规定： 1 液氨区应单独布置在通风条件良好的厂区边缘地带，避开人员集中活动场所和主要人流出入口，并宜位于厂区全年最小频率风向的，上风侧； 2 液氨区应设置不低于2.2m高的不燃烧体实体围墙；当利用厂区围墙作为氨区的围墙时，该段围墙应采用不低于2.5m高的不燃烧体实体围墙； 3 液氨储罐应设置防火堤，防火堤的设置应符合现行国家标准《建筑设计防火规范》GB 50016及《储罐区防火堤设计规范》GB 50351的有关规定。 4.0.14 厂区管线与电力线路的综合布置应符合下列规定： 1 甲、乙、丙类液体管道和可燃气体管道宜架空敷设；沿地面或低支架敷设的管道不应妨碍消防车的通行； 2 甲、乙、丙类液体管道和可燃气体管道不得穿过与其无关的建筑物、构筑物、生产装置及储罐区等； 3 架空电力线路不应跨越用可燃材料建造的屋顶及甲、乙类建(构)筑物；不应跨越甲、乙、丙类液体储罐区及可燃气体储罐区。 4.0.15 厂区内建(构)筑物、设备之间的防火间距不应小于表4.0.15(见书后插页)的规定；高层厂房之间及与其他厂房之间的防火间距，应在表4.0.15规定的基础上增加3m。 4.0.16 甲、乙类厂房与重要公共建筑的防火间距不宜小于50m。 4.0.17 当同一座主厂房呈口形或山形布置时，相邻两翼之间的防火间距，应符合现行国家标准《建筑设计防火规范》GB 50016中厂房的防火间距的有关规定。 5 燃煤电厂建(构)筑物的安全疏散和建筑构造 5.1 主厂房的安全疏散 5.1.1 汽机房、除氧间、煤仓间、锅炉房、集中控制楼的安全出口均不应少于2个。上述安全出口可利用通向相邻车间的乙级防火门作为第二安全出口，但每个车间地面层至少必须有1个直通室外的安全出口。 5.1.2 汽机房、除氧间、煤仓间、锅炉房最远工作地点到直通室外的安全出口或疏散楼梯的距离不应大于75m；集中控制楼最远工作地点到直通室外的安全出口或楼梯间的距离不应大于50m。 5.1.3 主厂房至少应有1个能通至各层和屋面且能直接通向室外的封闭楼梯间，其他疏散楼梯可为敞开式楼梯；集中控制楼至少应设置1个通至各层的封闭楼梯间。 5.1.4 主厂房室外疏散楼梯的净宽不应小于0.9m，楼梯坡度不应大于45°，楼梯栏杆高度不应低于1.1m。主厂房室内疏散楼梯净宽不宜小于1.1m，疏散走道的净宽不宜小于1.4m，疏散门的净宽不宜小于0.9m。 5.1.5 集中控制室的房间疏散门不应少于2个，当房间位于两个安全出口之间，且建筑面积小于或等于120m2时可设置1个。 5.1.6 主厂房的带式输送机层应设置通向汽机房、除氧间屋面或锅炉平台的疏散门。 5.2 其他建(构)筑物的安全疏散 5.2.1 碎煤机室和转运站应至少设置1个通至主要各层的楼梯，该楼梯应采用不燃性隔墙与其他部分隔开，楼梯可采用钢楼梯，但其净宽不应小于0.9m、坡度不应大于45°。运煤栈桥安全出口的间距不应超过150m。 5.2.2 卸煤装置的地下室两端及运煤系统的地下建筑物尽端，应设置通至地面的安全出口。地下室安全出口的间距不应超过60m。 5.2.3 室内煤场的安全出口不应少于2个，矩形煤场的安全出口的数量尚应与防火分区相对应。 5.2.4 主控制楼、配电装置楼各层及电缆夹层的安全出口不应少于2个，其中1个安全出口可通往室外楼梯。配电装置楼内任一点到最近安全出口的最大疏散距离不应超过30m。 5.2.5 配电装置室房间内任一点到房间疏散门的直线距离不应大于15m。 5.2.6 电缆隧道两端均应设通往地面的安全出口；当其长度超过100m时，安全出口的间距不应超过75m。 5.2.7 控制室的房间疏散门不应少于2个，当建筑面积小于120m2时可设1个。 5.2.8 每座空冷平台的室外楼梯不宜少于2个。室外楼梯的设计应符合本标准第5.1.4条规定。 5.3 建筑构造 5.3.1 主厂房电梯应能供消防使用并应符合消防电梯的要求。除锅炉房消防电梯外，消防电梯应设置前室。 5.3.2 主厂房及辅助厂房的室外疏散楼梯应符合下列规定； 1 室外疏散楼梯和平台均应采用不燃性材料制作，其耐火极限不应低于0.25h； 2 除疏散门外，楼梯周围2m内的墙面上不应设置门、窗、洞口；疏散门不应正对梯段； 3 通向室外楼梯的疏散门应采用乙级防火门，并应向室外开启。 5.3.3 变压器室、配电装置室等室内疏散门应为甲级防火门，电子设备间、发电机出线小室、电缆夹层、电缆竖井等室内疏散门应为乙级防火门；上述房间中间隔墙.上的门应采用乙级防火门。 5.3.4 主厂房各车间隔墙上的门均应采用乙级防火门。 5.3.5 主厂房煤仓间带式输送机层应采用耐火极限不小于1.00h的防火隔墙与其他部位隔开，隔墙上的门均应采用乙级防火门。 5.3.6 集中控制室应采用耐火极限分别不低于2.00h和1.50h的防火隔墙和楼板与其他部位分隔，隔墙上的门窗应采用乙级防火门窗。 5.3.7 主厂房疏散楼梯间内部不应穿越可燃气体管道，蒸汽管道，甲、乙、丙类液体的管道和电缆或电缆槽盒。 5.3.8 主厂房与天桥连接处的门洞应设置防止火势蔓延的措施，门应采用不燃性材料制作。 5.3.9 蓄电池室、充电机室以及蓄电池室前套间通向走廊的门，均应采用向外开启的乙级防火门。 5.3.10 当汽机房、屋内配电装置楼、主控制楼、集中控制楼及网络控制楼的墙外5m以内布置有变压器时，在变压器外轮廓投影范围外侧各3m内的上述建筑物外墙上不应设置门、窗、洞口和通风孔，且该区域外墙应为防火墙；当建筑物墙外5m～10m范围内布置有变压器时，在上述外墙上可设置甲级防火门，变压器高度以上可设防火窗，其耐火极限不应小于0.90h。 5.3.11 电缆沟及电缆隧道在进出主厂房、主控制楼、配电装置室时，在上述建筑物外墙处应设置防火墙。电缆隧道的防火墙上应采用甲级防火门。 5.3.12 当管道穿过防火墙时，管道与防火墙之间的缝隙应采用防火封堵材料填实。当直径大于或等于32mm的可燃或难燃管道穿过防火墙时，除填塞防火封堵材料外，还应在防火墙两侧的管道上采取阻火措施。 5.3.13 柴油发电机房宜独立设置，柴油储罐或油箱应布置在柴油发电机房外。当柴油发电机房与其他建筑物合建时，应符合下列规定： 1 宜布置在建筑的首层，并应设置单独安全出口； 2 应采用耐火极限不低于2.00h的防火隔墙和1.50h的不燃性楼板与其他部位分隔，门应采用甲级防火门。 5.3.14 丙类特种材料库贴邻一般材料库设置时，应采用耐火极限不低于2.00h的防火隔墙与一般材料库分隔并设置独立的安全出口。 5.3.15 火力发电厂内各类建筑物的室内装修防火设计应按现行国家标准《建筑内部装修设计防火规范》GB 50222执行。 5.3.16 运煤栈桥下方布置丁、戊类场所时，应符合下列规定： 1 应采用耐火极限不低于2.00h的不燃性外墙和耐火极限不低于1.00h的不燃性屋顶； 2 运煤栈桥水平投影范围内的厂房外墙开口部位上方应设置挑出长度不小于1m、耐火极限不低于1.00h的防火挑檐。 5.3.17 空冷平台下方布置变压器时，变压器水平轮廓外2m投影范围内的空冷平台承重构件的耐火极限不应低于1.00h；空冷平台下方布置空冷配电间时，空冷配电间应符合本标准第5.3.16条第1款、第2款的规定。 5.3.18 发电厂建筑物与消防车登高操作场地相对应的范围内，应设置直通室外的楼梯或直通楼梯间的入口。 5.3.19 厂房、仓库的外墙应在每层的适当位置设置可供消防救援人员进入的窗口，且每个防火分区不应少于2个，设置的位置应与消防车登高操作场地相对应。 5.3.20 供消防人员进入的窗口的净高度和净宽度均不应小于1.0m，下沿距室内地面不宜大于1.2m。窗口的玻璃应易于破碎，并应设置在室外易于识别的明显标志。 |
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