GB/T 7957-2017
General requirements for construction,performance and explosion protected testing of caplights for use in mines susceptible to firedamp
- Standard No.
- GB/T 7957-2017
- Language
- Chinese
- Release Date
- 2017
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Lastest
- GB/T 7957-2017
- Replace
- GB 7957-2003 GB 7957.2-2009
- Scope
- This standard specifies the product classification, requirements, test methods, inspection rules and signs of miner's lamps for gas environments. This standard applies to miner's lamps used in coal mine gas environments (Class I), including miner's lamps that are connected to and supply power to other equipment.
GB/T 7957-2017 Referenced Document
- GB 3836.1-2010 Explosive atmospheres.Part 1:Equipment.General requirements
- GB 3836.3-2010 Explosive atmospheres.Part 3:Equipment protection by increased safety "e"
- GB 3836.4-2010 Explosive atmospheres.Part 4:Equipment protection by intrinsic safety "i"
- GB/T 11020 Flammability of solid non-metallic meterials when exposed to flame sources-List of test methods
- GB/T 16935.3 Insulation coordination for equipment within low-voltage systems.Part 3:Use of coating, potting or moulding for protection against pollution
- GB/T 191 Packaging.Pictorial marking for handling of goods
- GB/T 2423.4 Environmental testing for electrical and electronic products - Part 2: Test method Test Db alternating damp heat (12h + 12h cycle)
- GB/T 4208 Degrees of protection provide by enclosure (IP code)
- GB/T 9969 General principles for preparation of instructions for use of industrial products
- MT 818.10 Cables for coal mine.Part 10:Cap lamp flexible cord for coal mine
- MT/T 1092 Specification for LED or LED modules of cap lamp
- MT/T 395 Protector of cap lamp
GB/T 7957-2017 history
- 2017 GB/T 7957-2017 General requirements for construction,performance and explosion protected testing of caplights for use in mines susceptible to firedamp
- 2003 GB 7957-2003 General requirements for safety of cap lamp
- 0000年 GB/T 7957-1987
GB/T 7957-2017 General requirements for construction,performance and explosion protected testing of caplights for use in mines susceptible to firedamp has been changed from GB 7957-2003 General requirements for safety of cap lamp.
GB/T 7957-2017 General requirements for construction,performance and explosion protected testing of caplights for use in mines susceptible to firedamp has been changed from GB 7957.2-2009 Caplights for use in mines susceptible to firedamp.Part 2:Performance and other safety-related matters.