GB/T 3836.30-2021 (English Version) PDF

Scope: This document specifies the explosion protection requirements for the design, construction, evaluation and service information (maintenance, repair, marking) of equipment which can be operated individually or in combination. Includes mining machinery and components for use in explosive atmospheres with methane and/or combustible dust. It is assumed that the standard atmospheric conditions (related to the explosive characteristics of the environment) that the equipment can operate are as follows: ——Temperature: -20°C~+60°C; ———Pressure: 80kPa~110kPa; ———Normal oxygen content in the air: usually It is 21% (volume fraction). NOTE: Further additional consideration and testing may be required for electrical equipment used in atmospheric conditions beyond this range. This document applies to equipment and components of class Mb (EPLMb) for use in explosive atmospheres containing methane and/or combustible dust. For Ma level (EPLMa) equipment and components, the requirements of this document, GB/T 3836.1 and GB/T 3836.28 apply.

GB/T 3836.30-2021 Referenced Document

GB/T 3685 Conveyor belts—Laboratory scale flammability characteristics—Test method
GB/T 3836.1 Explosive atmospheres—Part 1：Equipment—General requirements
GB/T 3836.18 Explosive atmospheres Part 18: Intrinsically safe electrical systems*， 2024-03-15 Update
GB/T 3836.28-2021 Explosive atmospheres—Part 28：Non-electrical equipment for explosive atmospheres—Basic method and requirements
GB/T 3836.29-2021 Explosive atmospheres—Part 29：Non-electrical equipment for explosive atmospheres—Constructional safety “c”, control of ignition source “b”, liquid immersion “k”
GB/T 4208 Degrees of protection provide by enclosure (IP code)
GB/T 5226.1 Electrical safety of machinery—Electrical equipment of machines—Part 1:General requirements

2021 GB/T 3836.30-2021 Explosive atmospheres—Part 30: Equipment and components in explosive atmospheres in underground mines