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Product catalog for coal safety certification (partial)

1、 Electrical equipment 1. High and low voltage electrical explosion-proof load switches

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Guidelines for Applying for Changes in Coal Safety MA and Coal Safety KA Marks

If the product of an enterprise is within the validity period of the safety mark, but the holder's industrial and commercial registration information, production conditions, or product technical docum……

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Guidelines for Continuing the Application of Coal Safety MA and Coal Safety KA Marks

For products that have obtained safety signs, their safety signs need to be extended upon expiration, and the standards, drawings, main components, and important raw material lists of the extended pro……

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Requirements for primary batteries in coal safety certification

1、 Lithium primary batteries (1) Lithium primary batteries with a capacity not exceeding (including)……

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The first application process for coal safety and mining safety (MA, KA) mark certification

Coal Mine Mark Certification (MA, KA certification for short) is a mandatory certification implemented by the National Coal Mine Safety Mark Office for underground coal mine supplies. All products lis……

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Relevant standards for coal safety certification (partial)

Coal Mine Mark Certification (MA, KA certification for short) is a mandatory certification implemented by the National Coal Mine Safety Mark Office for underground coal mine supplies. All products lis……

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Dust removal equipment installation and explosion-proof renovation construction

Working principle of pulse dust removal equipment: Pulse dust collector refers to the method of removing dust attached to the filter medium (bag or filter cartridge) by spraying compressed air; Accord……

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Construction of Anti explosion and Explosion Relief Workshop Renovation

（1） Explosion resistant wall 1. Explosion resistant wall: Explosion resistant wall refers to a wall ……

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Explosion proof electrical installation engineering

Explosion proof plug: Explosion proof plug is composed of socket and plug, mainly used in chemical industry, separated from mines, petroleum, and other places where it is needed. The socket is connect……

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SIL certification level pre evaluation submission list

SIL certification level pre evaluation submission document list 1, product user manual 2, product safety function list 3, product safety manual 4, failure mode analysis (FMEDA) Excel file 5, quality m……

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