GB 7957-2003 Replaced National standards force_standard

GB 7957-2003 General requirements for safety of cap lamp

Publish Date: 2003-11-28 Implement Date: 2004-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB 7957-2003

Standard Type: National standards

Standard Status: Replaced

is_force_gb: yes

CCS Name: Explosion-proof electrical appliances

ICS Name: Electric equipment for use in explosive environments

Publish Date: 2003-11-28

Implement Date: 2004-06-01

Pages: 8 pages

Development Information

Word Count: 15 Thousand words Pages: 8 pages

Replace the following standards

GB 7957-1987

Superseded by the following standards

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

Referenced Standards

GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.3-2000 Electrical apparatus for explosive gas atmospheres—Part 3:Increased safety “e” GB/T 4942.2-1993 Degrees of protection provided by enclosures for low-voltage apparatus 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 911-2002 Miner's lamp bulb MT 818.10-1999 MT/T 395-2007 Protector of cap lamp

Adopt standards

IEC 62013-1:1999

Related Standards

GB 5590-1985 Replaced

GB 5590-1985 Mining type flameproof electric magnetic starters

Publish Date: 1985-11-20

GB 3836.9-1990 Replaced

GB 3836.9-1990 Electrical apparatus for explosive atmospheres Encapsulated electrical apparatus "m"

Publish Date: 1990-08-27

GB 3836.11-1991 Replaced

GB 3836.11-1991 Electrical apparatus for explosive atmospheres-Method of test for ascertainment of maximum experimental safe gap

Publish Date: 1991-05-27

GB 3836.12-1991 Replaced

GB 3836.12-1991 Electrical apparatus for explosive atmospheres—Classification of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting currents

Publish Date: 1991-05-27

GB 3836.13-1997 Replaced

GB 3836.13-1997 Electrical apparatus for explosive gas atmospheres—Part 13:Repair and overhaul for apparatus used in explosive gas atmospheres

Publish Date: 1997-12-30

MT 703-1997 Replaced

MT 703-1997 Technical condition of electro-chemical type carbon monoxide instrumentation for coal mine

Publish Date: 1997-12-30