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GB 50089-2007: Safety code for design of engineering of civil explosives materials
GB 50089-2007
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50089-2007
Safety Code for Design of Engineering of
Civil Explosives Materials
Issued on. February 27, 2007 Implemented on August. 1, 2007
Issued by. Ministry of Construction (MOC);
General Administration of Quality Supervision, Inspection and
Quarantine (AQSIQ) of the People's Republic of China.
Table of Contents
Foreword ... 6 
1 General Provisions ... 8 
2 Terms ... 9 
3 Danger Class and Explosive Quantity ... 13 
3.1 Danger Class of Dangerous Goods ... 13 
3.2 Danger Class of Buildings ... 13 
3.3 Explosive Quantity ... 17 
4 Enterprise Planning and External Separation Distance ... 19 
4.1 Enterprise Planning ... 19 
4.2 External Separation Distance of Dangerous Goods Production Area ... 19 
4.3 External Separation Distance of General Dangerous Goods Production Area ... 24 
5 General Arrangement and the Minimum Allowable Internal Separation Distance ... 25 
5.1 General Arrangement ... 25 
5.2 Minimum Allowable Distance in Dangerous Goods Production Area ... 26 
5.3 Minimum Allowable Distance in General Warehouse Area of Dangerous Goods ... 29 
5.4 Protecting Barrier ... 31 
6 Technologies and Arrangement ... 33 
7 Storage and Transportation of Dangerous Goods ... 37 
7.1 Storage of Dangerous Goods ... 37 
7.2 Transportation of Dangerous Goods ... 39 
8 Buildings and Construction ... 41 
8.1 General Provisions ... 41 
8.2 Construction of Dangerous Goods Building ... 41 
8.3 Structure of Dangerous Goods Building ... 42 
8.4 Blast Resistant Chamber and Blast Resistant Shield Yard ... 43 
8.5 Safe Evacuation ... 45 
8.6 Building Construction of Dangerous Goods Building ... 46 
8.7 Built-in Building ... 47 
8.8 Corridor and Tunnel ... 48 
8.9 Building Construction of Dangerous Goods Warehouse ... 48 
9 Fire Water Supply ... 50 
10 Waste Water Treatment ... 53 
11 Heating, Ventilating and Air Conditioning ... 54 
11.1 General Provisions ... 54 
11.2 Heating ... 54 
11.3 Ventilating and Air Conditioning ... 55 
12 Electricity ... 57 
12.1 Classification of Electrical Installation in Hazardous Locations ... 57 
12.2 Electrical Equipment ... 61 
12.3 Indoor Electric Circuit ... 63 
12.4 Lighting ... 65 
12.5 10kV and under Power (distribution) Substation and Switch Room ... 65 
12.6 Outdoor Electric Circuit ... 66 
12.7 Lightning Protection and Earthing ... 67 
12.8 Electrostatic Prevention ... 68 
12.9 Communication ... 69 
13 Performance Test Yard and Destruction Yard of Dangerous Goods ... 70 
13.1 Performance Test Yard of Dangerous Goods ... 70 
13.2 Destruction Yard of Dangerous Goods ... 70 
14 Ground Ancillary Facilities of Mixed Loading Explosive Truck ... 72 
14.1 Stationary Ancillary Facilities ... 72 
14.2 Mobile Ancillary Facilities ... 72 
15 Automatic Control ... 74 
15.1 General Provisions ... 74 
15.2 Detection, Control and Interlocking Devices ... 74 
15.3 Instrumental Equipment and Circuits ... 74 
15.4 Control Room ... 75 
15.5 Security System ... 76 
15.6 Fire Alarm System ... 76 
15.7 Safety Protection against Radio-frequency Radiation of Industrial Electric
Detonator ... 76 
Appendix A Application Conditions and Increment and Decrement in the Relevant Terrain
... 79 
Appendix B Explosive Quantity and R1.1 Value ... 80 
Appendix C TNT Equivalent Coefficient of Commonly-used Gunpowder and Explosive .. 82 
Appendix D Protecting Scope of Protecting Earth Dike ... 83 
Appendix E Industrial Hygiene Classification of the Production Procedure of Dangerous
Goods ... 84 
Appendix F Classification of the Maximum Surface Temperature of Electric Installations in
Gunpowder and Explosive Hazardous Locations ... 86 
Explanation of Wording in this Code ... 87 
1 General Provisions
1.0.1 This code was formulated in order to implement the "Law of the People's Republic of
China on Work Safety", to persist the guideline of "safety first and prevention first", adopting
technical means, prevent and reduce the safety accidents in production, guarantee the life and
property safety of the public people and promote the development of economic construction.
1.0.2 This code is applicable to the construction, renovation, extension and improvement
engineering projects of the enterprises that are engaged in the production and circulation in civil
explosive materials industry.
1.0.3 The engineering design of civil explosives materials shall not only comply with this code,
but also shall co...