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This standard is a revision of GB 50414-2007 Code of design on fire protection and prevention for iron & steel metallurgy enterprises and was developed by Capital Engineering & Research Incorporation Ltd. and SURELAND jointly with the organizations concerned according to the requirements of Notice on printing and distributing the development and revision plan on engineering construction standards and codes in 2012 (JIANBIAO [2012] No. 5) issued by the Ministry of Housing and Urban-Rural Development.
During revision of this standard, the revision team followed relevant national laws, regulations and technical standards and made the following work, including conducting extensive and in-depth investigation and study, summarizing lessons of fire accidents in metallurgy enterprises and the practical experience of fire protection design, making a reference to relevant standards at home and abroad, absorbing scientific research achievements, extensively soliciting opinions from relevant departments and units for scientific research, design, production, fire supervision and colleges and universities etc., and completing the draft of the standard for approval. It submitted the draft to the Ministry of Housing and Urban-Rural Development for review and finalization.
This standard consists of 10 clauses and 2 annexes, mainly including: general provisions, terms, classification of fire hazards, fire resistance class and fire compartment, general layout, safe evacuation and building construction, process system, automatic fire alarm system, fire water supply and fire extinguishing equipment, heating, ventilating, air conditioning, smoke control and smoke exhaust, electric system, etc.
The following main contents have been revised:
1. Classification of fire hazards for produced and stored products is supplemented.
2. The fire protection design requirements of pulverized coal system, coal grinding and coal injection system, pulverized coal preparation and oxygen content in pulverized coal injection system are supplemented.
3. The setting requirements of automatic fire extinguishing system in the original code have been adjusted.
4. The design requirements of water mist fire extinguishing system in Annex B of the original code have been canceled, and the relevant contents are in accordance with the current national standard GB 50898 Technical code for water mist fire extinguishing system.
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 interpretation of the compulsory provisions; Capital Engineering & Research Incorporation Ltd. is responsible for the interpretation of specific technical contents. All units are kindly requested to sum up experience and accumulate data in the process of implementing this standard, and send opinions and relevant data to Capital Engineering & Research Incorporation Ltd. (Recipient: Management Group of National Standard for fire protection design of iron and steel metallurgy enterprises. Address: No.7 Jian'an Street, Beijing Economic and Technological Development Zone, 100176, China) for reference in future revision.
Standard for fire protection design of iron and steel metallurgy enterprises
1 General provisions
1.0.1 This standard is formulated with a view to preventing and reducing fire hazards in iron and steel metallurgy enterprises and protecting personal and property safety.
1.0.2 This standard is applicable to the fire protection design of new construction, extension and renovation projects of iron and steel metallurgy enterprises, but not to the places in iron and steel metallurgy enterprises for processing, storing, distributing and using explosives or blasting materials.
1.0.3 The fire protection design of iron and steel metallurgy enterprises shall be aimed to be safe, applicable, technologically advanced, economical and reasonable by actively adopting new technologies, new processes, new materials and new equipment in combination with engineering practice.
1.0.4 Iron and steel metallurgy enterprises with two or more process plants should share fire protection planning and design.
1.0.5 In addition to this standard, the fire protection design of iron and steel metallurgy enterprises shall also comply with those specified in the current relevant standards of China.
2 Terms
2.0.1
main workshop
workshops containing main production process equipment, including steelmaking main workshop and hot rolling main workshop
2.0.2
process plant
independent production unit areas, such as steel mills and self-generation power plant
2.0.3
main electrical room
buildings for main motor, converter, transformer (distribution) equipment and automatic control equipment of rolling mill in steel rolling system
2.0.4
main control building
buildings for automatic control equipment, transformer (distribution) equipment, etc., which serve other production except steel rolling system
2.0.5
general step-down transformer substation
substations which are separately set up and externally supplied power from the power system and supply and distribute power to the whole plant after the voltage is stepped down by a transformer
2.0.6
cable tunnel
totally enclosed underground structure for laying cables and having passages for installation and inspection
2.0.7
cable corridor
totally enclosed above-ground structures made of non-combustible or nonflammable materials for laying cables and having passages for installation and inspection
2.0.8
chamber
separate spaces excavated in various production parts in underground mines
3 Classification of fire hazards, fire resistance class and fire compartment
3.0.1 Classification of fire hazards of buildings and structures shall meet those specified in Table 3.0.1. Those not listed in the table shall meet the relevant requirements of the current national standard GB 50016 Code for fire protection design of buildings.
Foreword ii
1 General provisions
2 Terms
3 Classification of fire hazards, fire resistance class and fire compartment
4 General layout
4.1 General requirement
4.2 Fire separation
4.3 Pipeline distribution
5 Safety evacuation and building construction
5.1 Safe evacuation
5.2 Building construction
5.3 Explosion prevention of buildings and structures
6 Process system
6.1 Mining and refining process
6.2 Composite material markets
6.3 Coking
6.4 Refractory materials and metallurgical lime
6.5 Sintering and Pelletizing
6.6 Iron making
6.7 Steel making
6.8 Ferroalloy
6.9 Hot rolling and hot working of metal
6.10 Cold rolling and cold working of metal
6.11 Metal processing and testing
6.12 Hydraulic lubrication system
6.13 Combustion-supporting gas, combustible gas facility and oil installation
6.14 Other auxiliary facilities
7 Automatic fire alarm system
8 Fire water supply and fire extinguishing equipment
8.1 General requirements
8.2 Indoor fire water supply and outdoor fire water supply
8.3 Installation place of automatic fire extinguishing system
8.4 Fire pool, fire pump room and fire water tank
8.5 Fire water drainage
8.6 Fire station
9 Heating, ventilating, air conditioning, smoke control and exhaust
10 Electric system
10.1 Fire power supply and distribution
10.2 Fire power transformation and distribution
10.3 Classification of fire resistance class and fire compartment
10.4 Safe evacuation and building construction
10.5 Cable and cable laying
10.6 Lightning protection and anti-static protection
10.7 Fire emergency lighting and evacuation indicating sign
Annex A Examples of fire detector model selection in iron and steel metallurgy enterprises and design of alarm system in cable area
Annex B Division examples of explosion and fire danger environment area
Explanation of wording in this standard
List of quoted standards
