GB 20936.2-2009 Replaced National standards force_standard

GB 20936.2-2009 Electrical apparatus for the detection and measurement of flammable gases—Part 2:Performance requirements for group I apparatus indicating a volume fraction up to 5 % methane in air

Publish Date: 2009-09-30 Implement Date: 2010-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB 20936.2-2009

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: 2009-09-30

Implement Date: 2010-06-01

Pages: 7 pages

Scope

This section specifies portable, movable, and fixed Class I detectors (as defined in Section 1) for detecting methane concentrations in mine air. Therefore, these detectors or their components can be used in coal mines prone to gas emissions, and the requirements and test methods for the detectors included in this section are specified in Section 1.

Development Information

Word Count: 11 Thousand words Pages: 7 pages

Same series standard

GB/T 20936.3-2009 Electrical apparatus for the detection and measurement of flammable gases—Part 3:Performance requirements for group Ⅰ apparatus indicating a volume fraction up to 100% methane in air

Superseded by the following standards

GB/T 20936.1-2017 Gas detectors for explosive atmospheres—Part 1:Performance requirements of detectors for flammable gases

Referenced Standards

GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres—Part 2:Flameproof enclosure “d” GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres—Part 4:Intrinsic safety“i” GB 20936.1-2007 Electrical apparatus for the detection and measurement of flammable gases—Part 1:General requirement and test methods

Adopt standards

IEC 61779-2:1998

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