GB 12476.3-2007
Electrical apparatus for use in the presence of combustible dust.Part 3: Classification of areas where combustible dusts are or may be present (English Version)

Standard No.

GB 12476.3-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

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

Status

Be replaced 2018-07

Replace By

GB/T 12476.3-2017

Latest

GB/T 3836.35-2021

Scope

This part of GB 12476 involves the classification of places where explosive dust/air mixtures and combustible dust layers exist, so that suitable equipment can be selected for use in such places. In this section, explosive dust atmospheres and combustible dust layers are discussed separately. In Chapter 4, the classification of sites for explosive dust clouds is described, with dust layers as one of the possible sources of release. In Chapter 7, the ignition hazard of dust layers is described. This section adopts effective site cleaning based on the factory cleaning system. This section applies to locations where hazards may arise due to the presence of explosive dust/air mixtures or combustible dust layers under normal atmospheric conditions. This standard does not apply to: - underground mining sites; - places where there may be hazards due to the presence of mixed materials; - explosive dust or natural substances that do not require atmospheric oxygen to burn; Normal catastrophic accidents (see Note 1); - any hazards caused by flammable or toxic gases ejected with dust; - this section does not consider the impact of damage caused after fire or explosion.

GB 12476.3-2007 Referenced Document

• IEC 61241-0:2004 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements
• IEC 61241-14:2004 Electrical apparatus for use in the presence of combustible dust - Part 14: Selection and installation

GB 12476.3-2007 history

• 2021 GB/T 3836.35-2021 Explosive atmospheres—Part 35：Classification of areas for explosive dust atmospheres
• 2017 GB/T 12476.3-2017 Electrical apparatus for use in the presence of combustible dust—Part 3: Classification of areas where combustible dusts are or may be present
• 2007 GB 12476.3-2007 Electrical apparatus for use in the presence of combustible dust.Part 3: Classification of areas where combustible dusts are or may be present

GB 12476.3-2007 Electrical apparatus for use in the presence of combustible dust.Part 3: Classification of areas where combustible dusts are or may be present was changed to GB/T 12476.3-2017 Electrical apparatus for use in the presence of combustible dust—Part 3: Classification of areas where combustible dusts are or may be present.

GB 12476.3-2007 -All Parts