GB 12476.1-2013
Electrical apparatus for use in the presence of combustible dust.Part 1:General requirements (English Version)

Standard No.

GB 12476.1-2013

Language

Chinese, Available in English version

Release Date

2013

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced

Replace By

GB/T 3836.1-2021

Latest

GB/T 3836.1-2021

Replace

GB 12476.1-2000

Scope

This part of GB 12476 specifies the general requirements for the design, construction, testing and marking of electrical equipment protected by recognized protection techniques in environments where the amount of combustible dust present may cause a fire or explosion hazard. This part is supplemented or modified by the following special explosion-proof type standards in GB 12476: -- Part 4: Intrinsically safe type "iD" -- Part 5: Enclosure protection type "tD"; -- Part 6: Encapsulated type " mD";--Part 7: Positive pressure protection type "pD". For electrical equipment used in an environment where flammable gases and flammable dust may appear simultaneously or separately, some additional protective measures are required. This section does not specify safety requirements other than immediate and explosive hazards. When electrical equipment must comply with other environmental requirements, such as waterproof and anti-corrosion and other protection methods are used, the protection methods must not adversely affect the integrity of the enclosure. This section applies to combustible dust environments formed under atmospheric conditions. This section does not apply to those explosive dusts or pyrophoric substances that do not require atmospheric oxygen to burn. This section does not apply to electrical equipment used in underground coal mines and coal mine ground installations where gas and/or combustible dust may cause hazards. This section does not consider the hazards caused by flammable or toxic gases emitted by dust.

GB 12476.1-2013 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 4208-2008 Degrees of protection provided by enclosure(IP code)
• GB/T 1040.2-2006 Plastics. Determination of tensile properties. Part 2: Test conditions for moulding and extrusion plastics
• GB/T 1043.1-2008 Plastics.Determination of charpy impact properties.Part 1:Non-instrumented impact test
• GB/T 1408.1-2006 Electrical strength of insulating materials-Test methods-Part 1:Tests at power frequencies
• GB/T 1800.2-2009 Geometrical Product Specifications (GPS) Limits and fits--Part 2:Tables of standard tolerance grades and limit deviations for holes and shafts
• GB/T 2516-2003 General purpose metric screw threads--Limit deviations
• GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating electrical machined (IP code) - Classification
• GB/T 5008.1-2005 Lead-acid starter batteries-Technicat conditions
• GB/T 5277-1985 Fasteners--Clearance holes for bolts and screws
• GB/T 5782-2000 Hexagon head bolts
• GB/T 5783-2000 Hexagon head bolts-Full thread
• GB/T 6031-1998 Rubber, Vulcanized or thermoplastic--Determination of hardness (hardness between 10 IRHD and 100IRHD)
• GB/T 70.1-2008 Hexagon socket head cap screws

GB 12476.1-2013 history

• 2021 GB/T 3836.1-2021 Explosive atmospheres—Part 1：Equipment—General requirements
• 2013 GB 12476.1-2013 Electrical apparatus for use in the presence of combustible dust.Part 1:General requirements
• 2000 GB 12476.1-2000 Electrical apparatus for use in the presence of combustible dust--Part 1-1: Electrical apparatus protected by enclosures and surface temperature limitation-Specification for apparatus
• 1990 GB 12476.1-1990 Electrical apparatus for explosive dust atmosphere--Dust ignition-proof apparatus

GB 12476.1-2013 -All Parts