GB/T 7957-2017 Replaced National standards

GB/T 7957-2017 General requirements for construction,performance and explosion protected testing of caplights for use in mines susceptible to firedamp

GB/T 7957-2017 General requirements for construction,performance and explosion protected testing of caplights for use in mines susceptible to firedamp

Publish Date: 2017-12-29 Implement Date: 2017-12-29 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 7957-2017
Standard Type: National standards
Standard Status: Replaced
is_force_gb: no
CCS Name: Explosion-proof electrical appliances
ICS Name: Electric equipment for use in explosive environments
Publish Date: 2017-12-29
Implement Date: 2017-12-29
Pages: 20 pages

Scope

This standard specifies the product classification, requirements, test methods, inspection rules, and markings for mining lamps used in gas environments. This standard applies to mining lamps used in coal mine gas environments (Category I), including mining lamps that are connected to other equipment and supply power to other equipment.

Development Information

Word Count: 32 Thousand words Pages: 20 pages

Replace the following standards

Superseded by the following standards

Referenced Standards

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 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products—Test Db:Damp heat, cyclic GB/T 2423.4-2008 Environmental testing for electric and electronic products—Part 2:Test method—Test Db:Damp heat,cyclic(12 h+12 h cycle) GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 9969-2008 General principles for preparation of instructions for use of industrial products GB 9969.1-1998 General principles for preparation of instructions for use of industrial products GB/T 11020-2005 Flammability of solid non-metallic materials when exposed to flame sources—List of test methods GB/T 16935.3-2005 Insulation coordination for equipment within low-voltage systems—Part 3:Use of coating,potting or moulding for protection against pollution GB/T 16935.3-2016 Insulation coordination for equipment within low-voltage systems— Part 3:Use of coating,potting or moulding for protection against pollution MT 395-1995 Flashlight short circuit protection device MT/T 818.10-2009 coal mine electrical cables - Part 10: worker cap light wires for coal mines MT/T 1092-2008 LED for mining lamps and LED light source assembly technical specifications MT 818.10-1999 MT/T 395-2007 Protector of cap lamp GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 16935.3-2025 Insulation coordination for equipment within low-voltage systems—Part 3:Use of coating,potting or moulding for protection against pollution

Adopt standards

IEC 60079-35-1:2011 IEC 60079-35-2:2011

Related Standards

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