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Explosion proof electrical testing | Classification of explosion-proof areas in explosive gas environments

When we come into contact with many companies, we have found that many companies believe that the classification of hazardous areas in explosive gas environments is based on the reserves or properties……

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Basic requirements for explosion-proof grade "da" of explosion-proof type in GB/T3836-2021

In the new version of GB/T3836-2021 explosion-proof standard, explosion-proof protection levels have been added to explosion-proof electrical equipment, which are divided into: Da "protection lev……

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The IEC standard corresponding to GB/T3836-2021 standard

With the release and implementation of the new version of the national standard GB/T3836-2021, domestic explosion-proof standards have further aligned with international explosion-proof standards. The……

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Implementation Plan for Replacing Coal Safety and Mine Safety Certificates According to the New Explosion proof Standards

On May 1, 2022, the GB/T 3836-2021 series of standards for explosive environments (hereinafter referred to as the new version of explosion-proof standards) officially came into effect. The National Ce……

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Process for obtaining certification of installation, maintenance, and repair capabilities for explosion-proof electrical equipment

The certification of installation, maintenance, and repair capabilities for explosion-proof electrical equipment is currently one of the essential certificates for most explosion-proof electrical cons……

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The relevant regulations of the National Safety Standards Center for OEM mode enterprises to apply for coal safety certification

To standardize the management of safety signs for mining products produced by OEM and strengthen process control, this rule is formulated. The review and issuance of safety signs for OEM products shou……

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Explosion proof electrical CCC certification based on GB/T3836 standard revision requirements

Heavy weight! Heavy weight! Heavy weight! The new national standard GB/T3836-2021 series explosion-proof standards have been officially implemented on May 1, 2022. Starting from May 1, 2022, the CCC c……

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Validity period of coal safety certification safety mark certificate

(1) Conventional products. The validity period of safety signs is generally 5 years; (2) New product……

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Explosion proof marking instructions for Ex equipment used in explosive gas environments according to GB/T 3836 standard

The new version of GB/T3836 series standards has been officially implemented on May 1, 2022. The difference between the old and new standards is a concern for many corporate customers. The explosion-p……

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List of the latest GB/T3836 series explosion-proof standards currently in use

Recently, many customers have been inquiring about the date of the new version of the explosion-proof certification standard GB/T3836. Zhongnuo Testing would like to inform everyone that the new versi……

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