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How should explosion-proof electrical equipment be selected- Shenzhen Zhongnuo Testing

The key is to see how this explosion-proof area is partitioned. Explosive gas environments are divided into Zone 0, Zone 1, and Zone 2. Combustible dust areas are divided into zones 20, 21, and 22. The selection of equipment depends on its protection level. The equipment protection levels corresponding to Zone 0, Zone ……

How to understand the difference between explosion-proof and intrinsically safe explosion-proof?

Intrinsic safety and explosion-proof are two different types of explosion-proof protection. Generally, explosion-proof protection is adopted by using an explosion-proof shell, which must have sufficient thickness and strength. Even if an explosion occurs inside the equipment, the width, gap, and roughness of the explos……

Can inspection robots obtain explosion-proof certification? What are the requirements?

Many customers are asking if inspection robots can obtain explosion-proof certificates? According to what standards? What are the technical requirements, etc? Whether the product needs to undergo explosion-proof certification depends on whether it is used in explosive gas or dust environments; Can explosion-proof certi……

Standard requirements for obtaining intrinsic safety explosion-proof certification for methane monitoring devices

Requirements for obtaining intrinsic safety explosion-proof certification for methane monitoring devices 1. Certification standards: 1. GB/T 3836.1-2021 Explosive Atmospheres Part 1: General Equipment Requirements 2. GB/T 3836.4-2021 Explosive Atmospheres Part 4_ Equipment protected by intrinsic safety type "i&quo……

The main content of electrical explosion-proof testing

The basic requirements for regular inspection of explosion-proof electrical equipment mainly include the following aspects: 1. Standards and cycles for regular inspection of explosion-proof electrical equipment. With the increasing popularity of explosion-proof electrical appliances, many explosive hazardous areas have……

What drawing materials are required for the intrinsic safety and explosion-proof certification of wireless intelligent temperature and vibration sensors?

What specific drawings are required for the application of intrinsic safety and explosion-proof certification for wireless intelligent temperature and vibration sensors by the certification agency? 1. General assembly diagram 2, circuit wiring diagram 3, circuit schematic diagram 4, printed circuit board diagram 5, com……

Congratulations to PetroChina on successfully obtaining the explosion-proof certificate of urea refueling machine during Zhongnuo testing

Congratulations to PetroChina on successfully obtaining the explosion-proof certificate of urea refueling machine during Zhongnuo testing

What qualifications are required for the explosion-proof performance testing of electrical equipment in explosive hazardous environments?

Whether it is explosion-proof products or explosion-proof electrical testing in explosion-proof areas, CNAS authorization qualification is required. The explosion-proof testing standards for the product are GB/T3836 and other series, and the explosion-proof electrical testing execution standards for explosion-proof are……

What are the standards for testing explosion-proof electrical equipment?

This also depends on whether it is on-site equipment testing or product testing. If the testing of equipment used in hazardous areas is in accordance with AQ3009-2007 "Electrical Safety and Explosion Protection Code for Hazardous Areas", the testing cycle shall not exceed 3 years. If it is product testing, it……

Can plastic casings be used for equipment in intrinsic safety and explosion-proof certification?

Can plastic casings be used for equipment in intrinsic safety and explosion-proof certification? Sure. Intrinsic safety, also known as intrinsic safety type, mainly achieves the intrinsic safety of equipment by limiting the energy in the circuit, without limiting the plastic or metal casing. However, there are requirem……