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Many people always think that the explosion-proof certificate and coal safety certificate are the same, as long as the product obtains the explosion-proof certificate or coal safety certificate, it can be used in any explosive hazardous area. Actually, this is a big misconception. What are the differences between explosion-proof certificate and coal safety certificate?

1The issuing agencies are different

Explosion proof certificate, also known as explosion-proof qualification certificate, is issued by the National Electrical Product Quality Supervision and Inspection Center or other qualified units. Currently, there are more than ten institutions nationwide that can issue explosion-proof qualification certificates. The coal safety certificate can only be issued by the National Safety Standards Center.

2Different applicable environments

The explosion-proof certificate is applicable to Class II and III explosive hazardous areas, including gas and dust environments, while the coal safety certificate is only applicable to Class I gas explosive hazardous environments.

3The certification process is different

At present, the explosion-proof certificate only requires the application of samples and product technical information for relevant testing, without the need for factory review. Traders and distributors can apply for the explosion-proof certificate. However, according to the Announcement of the State Administration for Market Regulation on the Implementation Requirements for the Management of Compulsory Product Certification for Explosion proof Electrical and Other Products from Production License, from October 1, 2019, explosion-proof electrical products will also be included in the scope of national compulsory product certification management. This means that after October 1, 2019, explosion-proof electrical products will be subject to national CCC certification and must undergo factory inspection in accordance with the implementation rules of CCC certification. And the coal safety certificate not only requires corresponding testing of the samples, but also requires annual factory supervision after the factory is reviewed and certified.

4The certification cycle is different

At present, the application for coal safety certificate follows a series of processes of the National Safety Standards Center, including application, acceptance, review, inspection, factory audit, and post certification supervision, which generally takes 6-7 months. The explosion-proof certificate only needs to provide product information and samples for relevant testing before being issued directly, which can quickly obtain the certificate.

5The certification fees are different

The cost of applying for a coal safety certificate generally includes application fees, technical review fees, testing fees, factory review fees, certificate fees, etc., and the cost is higher than that of an explosion-proof certificate.

As the country further includes explosion-proof electrical equipment in the scope of mandatory national certification, what changes may be faced by explosion-proof certificates and coal safety certificates? Please stay tuned.
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