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GB 50974-2014 English PDF (GB50974-2014)

GB 50974-2014 English PDF (GB50974-2014)

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GB 50974-2014: Technical code for fire protection water supply and hydrant systems

This Code is developed to properly design the fire water and fire hydrant system, to ensure construction quality, to standardize inspection and maintenance management, to reduce fire hazards and to protect personal and property safety. This Code applies to the design, construction, inspection and maintenance management of fire water and fire hydrant systems of the new construction, expansion and renovation of industrial, commercial and municipal construction.
GB 50974-2014
UDC GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
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
3. No action is required - Full-copy of this standard will be automatically & immediately delivered to your EMAIL address in 0~60 minutes.
Foreword
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.
Contents
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 ... 95
11 Control and operation ... 98
12 Installation ... 102
12.1 General requirements ... 102
12.2 Admission inspection ... 104
12.3 Construction ... 113
12.4 Pressure test and flushing ... 134
13 System debugging and acceptance ... 139
13.1 System debugging ... 139
13.2 System acceptance ... 144
14 Maintenance and Management ... 154
Appendix A Division of the partitioned project and item project of the fire water supply system ...

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