GB/T 3836.7-2017
ActiveExplosive atmospheres—Part 7: Equipment protection by powder filling “q”
爆炸性环境 第7部分：由充砂型“q”保护的设备
Application Summary AI generated
GB/T 3836.7-2017 specifies the construction, testing, and marking requirements for electrical equipment protected by powder filling (type "q") for use in explosive gas atmospheres. It applies to devices where enclosures are filled with a fine granular material, such as quartz or glass powder, to prevent ignition of surrounding explosive mixtures by quenching arcs or hot surfaces. This standard is primarily used in industries like mining, petrochemical, and gas processing for equipment such as transformers, capacitors, and junction boxes operating in Zone 1 or Zone 2 hazardous areas.
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