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GB 50974-2014

Chinese Standard: 'GB 50974-2014'
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Standard ID GB 50974-2014 (GB50974-2014)
Description (Translated English) Technical code for fire protection water supply and hydrant systems
Sector / Industry National Standard
Classification of Chinese Standard P30
Classification of International Standard 91.040.01
Word Count Estimation 229,261
Date of Issue 2014/1/29
Date of Implementation 2014/10/1
Quoted Standard GB 50013; GB 50016; GB 50032; GB 50084; GB 50141; GB 50151; GB 50160; GB 50183; GB 50219; GB 50231; GB 50235; GB 50236; GB 50242; GB 50261; GB 50268; GB 50275; GB 50281; GB 50296; GB 50332; GB 50338; GB/T 2423.1; GB/T 2423.2; GB/T 2681; GB/T 2682; GB/T 30
Drafting Organization China IPPR International Engineering Corporation
Administrative Organization Ministry of Housing and Urban-Rural Development
Regulation (derived from) Ministry of Housing and Urban-Rural Development Bulletin No. 312
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Ministry of Housing and Urban-Rural Development of the People's Republic of China
Summary This standard applies to new construction, expansion, renovation of industrial design, civil, municipal and other construction projects and fire hydrant water supply system, construction, inspection and maintenance management.

GB 50974-2014
P GB 50974-2014
Technical code for fire protection
water supply and hydrant systems
Issued on January 29, 2014 Implemented on October 01, 2014
Issued by. Ministry of Housing and Urban-Rural Construction, P.R.C.
General Administration of Quality Supervision, Inspection
and Quarantine of People's Republic of China
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This Code is prepared by the China IPPR International Engineering Corporation and
relevant companies based on the requirements of the original Notice on the Issuance of
“Engineering Construction Standards Development and Revision Plan (first) of the Year
2006” (Construction Standard [2006] No. 77) of the Ministry of Construction.
In the preparation of this Code, the preparation team conducted extensive researches,
summed up the fire water and hydrant systems researches of our country as well as the
scientific achievements in manufacturing, research and maintenance management and
practical experience in engineering, and took advice from the design, construction,
research, manufacturing, education, fire supervision departments and organizations, in
accordance with the relevant national policies and the fire-fighting policy of "prevention
first, prevention and fighting combined" to serve for economic and social development,
with reference to foreign advanced standards. The Code is finalized after review.
The Code is divided into 14 chapters and 7 appendices, with main contents including.
general provisions, terms and symbols, design parameters, fire water, facilities of water
supply, types of fire protection water supply, hydrant systems, pipeline works, fire
protection drainage, hydraulic calculation, control and operation, installation, system
commissioning and acceptance, maintenance.
The provisions in bold are compulsory and must be strictly enforced in this Code.
The Ministry of Housing and Urban-Rural Development is responsible for the
management of the Code and the interpretation of the compulsory provisions, the Ministry
of Public Security is responsible for the daily management and China IPPR International
Engineering Corporation is responsible for interpreting the specific technical contents. In
the implementation of the Code, please sum up experiences, collect information and
timely send your advice and information to the Fire Water and Hydrant System Technical
Code Management Group of China IPPR International Engineering Corporation (Address.
No. 5, North Road of West Third Ring Road, Beijing; postal code. 100089) for the
reference of future revisions.
1 General Provisions... 9
2 Terms and Symbols ... 10
2.1 Terms ... 10
2.2 Symbols ... 11
3 Design parameters ... 15
3.1 General requirements ... 15
3.2 Fire flow rates for town ... 16
3.3 Fire flow rates of outdoor hydrant for building ... 17
3.4 Fire flow rates of outdoor for structures ... 19
3.5 Fire flow rates of indoor fire hydrant ... 31
3.6 Fire protection water demand ... 35
4 Fire water ... 39
4.1 General requirements ... 39
4.2 Municipal water supply ... 39
4.3 Fire reservoir ... 40
4.4 Natural water and others ... 43
5 Facilities of water supply ... 45
5.1 Fire pump ... 45
5.2 Elevated fire tank ... 51
5.3 Makeup pump ... 54
5.4 Fire department connection ... 55
5.5 Fire pump room ... 57
6 Types of fire protection water supply... 62
6.1 General requirement ... 62
6.2 Vertical zone of water supply ... 65
7 Hydrant systems ... 69
7.1 Types of system ... 69
7.2 Municipal hydrant ... 69
7.3 Outdoor hydrant ... 71
7.4 Indoor hydrant ... 72
8 Pipeline works ... 77
8.1 General requirements ... 77
8.2 Pipeline design ... 79
8.3 Valves and others ... 84
9 Fire protection drainage ... 87
9.1 General requirements ... 87
9.2 Fire protection drainage ... 87
9.3 Drainage of system commissioning and testing ... 88
10 Hydraulic calculation ... 89
10.1 Hydraulic calculation ... 89
10.2 Hydrant ... 94
10.3 Pressure reduction......
Related standard: GB 50352-2019    GB/T 50378-2019
Related PDF sample: GB/T 50378-2019    GB/T 50378-2014