GB 16670-2025Cabinet gas fire extinguishing equipment (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part

1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB 16670-2006 Cabinet-type gas fire extinguishing equipment. Compared with GB 16670-2006, except for structural adjustments and editorial In addition to the modifications, the main technical changes are as follows:

a) The model compilation method has been changed (see Chapter 4, Chapter 4 of the.2006 edition);

b) Modified some performance parameters in Table 1 (see Table 1, Table 1 of the.2006 edition);

c) Added the requirements for warning signs for fire extinguishing devices (see 5.1.2.4);

d) Added concentration distribution performance requirements and test methods (see

e) Added fire extinguishing device status monitoring and data application platform functional requirements and test methods (see 5.1.8, 6.8);

f) Fire extinguishing requirements have been deleted (see

5.7 of the.2006 edition);

g) Added the requirements for the number of fire extinguishing agent cylinders (see 5.2.2), and the requirements and test methods for accidental discharge protection devices (see

5.2.5 and 6.14);

h) Added gas cylinder design, manufacturing, inspection requirements (see 5.2.7.3), color and marking requirements (see 5.2.7.5);

i) Deleted the requirements for vessel strength, sealing, and overpressure (see

5.9.6 of the.2006 edition);

1 Scope

China's mandatory national standard for cabinet gas fire extinguishing equipment. A cabinet unit is a self-contained pre-engineered system: the agent cylinder, the valve, the nozzle and the control are all built into a single enclosure that stands in the room it protects, so no distribution pipework is designed or installed on site. That is what makes it the practical choice for small protected volumes - a server room, a switchroom, an archive - where designing a piped system would cost more than the room is worth. The trade is that everything must be settled at manufacture rather than by the installing engineer: the agent quantity, the discharge time and the nozzle coverage are fixed to a stated protected volume, and using the unit outside that volume voids the protection. The standard specifies the requirements, the discharge performance and the tests for such equipment.

This document defines the terms and definitions of cabinet type gas fire extinguishing devices (hereinafter referred to as "fire extinguishing devices"), and specifies the The requirements, inspection rules, marking, packaging, transportation, storage, instruction manual and filling of fire extinguishing agents are described, and the corresponding test methods are described. This document applies to cabinet-type heptafluoropropane gas fire extinguishing equipment and cabinet-type carbon dioxide gas fire extinguishing equipment stored in high-pressure form. This document does not apply to cabinet-type carbon dioxide gas fire extinguishing devices stored in low-pressure form.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document.

GB 4396 Carbon dioxide fire extinguishing agent

GB/T 5099.1 Steel seamless gas cylinders Part

1.Steel cylinders with a tensile strength less than 1100 MPa after quenching and tempering

GB/T 5100 Steel welded gas cylinders

GB/T 8979 Pure nitrogen, high-purity nitrogen and ultra-pure nitrogen

GB/T 9969 General principles for instructions for use of industrial products

GB 12463 General Technical Requirements for Transport Packaging of Dangerous Goods

GB 18614 Heptafluoropropane (HFC227ea) fire extinguishing agent

GB 25972-2024 Gas fire extinguishing systems and components

GB/T 30685 Technical requirements for upright road transport of gas cylinders

GB/T 34525 Safety regulations for the handling, loading and unloading, storage and use of gas cylinders XF

61 General technical requirements for drive and control devices of fixed fire extinguishing systems XF1203 Gas Fire Extinguishing System Fire Extinguishing Agent Filling Regulations TSG23-2021 Gas Cylinder Safety Technical Regulations

3 Terms and Definitions

The terms and definitions defined in GB 25972-2024 and the following apply to this document.

3.1 The bottle group, drive device, signal feedback device, connecting parts, etc. are installed in the cabinet, which can receive fire extinguishing instructions and A fire extinguishing device that releases gaseous fire extinguishing agent from a nozzle to extinguish a fire and has a fire extinguishing agent release signal feedback function.

4 Model compilation

4.1 Method for compiling fire extinguishing equipment models The fire extinguishing device model should be compiled according to the following method.