日本免费在线观看视频-日本免费在线-日本免费一区二区在线观看-日本免费一区二区视频-2017国产小视频-2017能在线观看的网站

What are the requirements for applying for explosion-proof certification and explosion-proof CCC certification for products? Shenzhen Zhongnuo Testing

This should be for products in the explosion-proof 3C catalog, such as motors, fans, walkie talkies, etc., all of which belong to the explosion-proof 3C catalog. Those who have previously obtained an explosion-proof certificate need to convert to an explosion-proof 3C certification certificate. The application for expl……

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 environment is divided into Zone 0, Zone 1, and Zone 2. Flammable 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 1, a……

How to understand the difference between explosion-proof and intrinsic safety explosion-proof?

Intrinsic safety and explosion-proof are two different types of explosion-proof protection. Generally, explosion-proof enclosures are used for protection. The explosion-proof enclosure should have sufficient thickness and strength. Even if an explosion occurs inside the equipment, the flame will be extinguished due to ……

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

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

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

Standard requirements for obtaining an intrinsic safety explosion-proof certificate for methane monitoring devices: 1. Certification standards: 1. GB/T 3836.1-2021 Explosive Environment Part 1: General Requirements for Equipment 2. GB/T 3836.4-2021 Explosive Environment Part 4: Equipment Protected by Intrinsic Safety T……

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 explosion-proof certification of wireless intelligent temperature vibration sensors?

What specific drawings are required for applying for intrinsic safety and explosion-proof certification for wireless intelligent temperature and vibration sensors? 1. General assembly diagram 2, circuit wiring diagram 3, circuit schematic diagram 4, printed circuit board diagram 5, component layout diagram 6, component……

Congratulations to PetroChina for successfully obtaining the explosion-proof certificate of urea injection machine in Zhongnuo Testing

Congratulations to PetroChina for successfully obtaining the explosion-proof certificate of urea injection machine in Zhongnuo Testing

What qualifications are required for 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 qualifications are required. The explosion-proof testing standards for the product are GB/T3836 and other series, and the explosion-proof electrical testing standards for explosion-proof areas are A……

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

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