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Which level is higher for Ga and Gb in explosion-proof certification?

Ga, Gb, Gc are protection levels for equipment used in explosive gas environments and are essential components of explosion-proof equipment labeling Ga explosive gas environment equipment has a "very high" protection level. In normal operation, expected or rare faults that occur are not ignition sources. Ga p……

What is an explosion-proof certificate? Where can I handle it?

With the increasing emphasis on safety production by the country, electrical equipment used in various chemical plants, oil stations, oil depots, grain and oil factories, coal mines, and other places must pass the inspection and testing requirements of national explosion-proof standards such as GB3836, and obtain corre……

Technical requirements for using cables in explosion-proof construction sites

1. Electrical circuits should be laid in areas with low explosion hazards or at a distance from the release source, avoiding places that are susceptible to mech……

How to divide the dust explosion prevention area into 20 zones, 21 zones, and 22 zones?

According to the frequency and duration of explosive dust environments, the places classified as explosive dust environments are divided into three zones. The dust layer, precipitation, and accumulation of combustible dust should be considered as "any other release source" that may form an explosive environme……

Is explosion-proof certification equivalent to intrinsic safety certification? What's the difference between them?

Sometimes customers come to inquire about Zhongnuo Testing, and they have products that require intrinsic safety certification. What is the difference between this and explosion-proof certification? This involves the issue of various types of explosion-proof certification. Actually, intrinsic safety is just one type of……

Does the whole machine still need to undergo explosion-proof certification, even though the components have explosion-proof certification?

When many clients consult, I purchase components and equipment with explosion-proof certificates. Does the overall equipment assembled together still need explosion-proof certification? What are the requirements for explosion-proof certification of the whole machine? As a professional explosion-proof certification agen……

Shenzhen Explosion proof Certificate Agency

1、 The introduction of explosion-proof certificate refers to the document used to determine whether the equipment meets the requirements of standards, type test……

Material requirements for explosion-proof enclosures of mining equipment

The explosion-proof shell material of Class 1 electrical equipment: 1. The shell of electrical equipment used in mining workfaces (including electrical dual equipment installed on coal mining machines, tunneling machines, rock loading machines, conveyors, etc.) must be made of Zhongnuo testing steel plates or cast stee……

PCEC Tianjin Explosion proof Testing and Certification Center Explosion proof Certificate Query Website

The National Safety Production Tianjin Explosion proof Electrical Testing and Inspection Center, also known as the Petroleum and Chemical Industry Electrical Product Explosion proof Quality Supervision and Inspection Center (PCEC), is a special environmental electrical equipment testing laboratory recognized by the Nat……

NEPSI Shanghai Explosion proof Electrical Testing and Certification Center Explosion proof Certificate Query Website

Shanghai Explosion proof Electrical Inspection and Testing Center National Instrumentation Explosion proof Safety Supervision and Inspection Station (NEPSI) is an international explosion-proof laboratory recognized by the International Electrotechnical Commission's IECEx system; It is the National Safety Production Sha……