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What does the explosion-proof mark Ex de llB T6 Gb mean?

The explosion-proof mark is a crucial information for equipment to undergo explosion-proof certification, involving the design requirements and testing items of the equipment. The explosion-proof mark can clearly indicate the scope of application and location requirements of the equipment. It can be said that the explo……

How to do explosion-proof certification for explosion-proof switches? What is the basic process of explosion-proof certification?

How to do explosion-proof certification for explosion-proof switches? What is the basic process of explosion-proof certification? Explosion proof limit switches, travel switches, proximity switches, etc. are common explosion-proof electrical equipment in explosive environments, coal mining industries, paint or ink manu……

What should I pay attention to when applying for an explosion-proof certificate?

What should I pay attention to when applying for an explosion-proof certificate? Many customers are confused and don't know where to start when consulting and applying for explosion-proof certification. Shenzhen Zhongnuo Testing Technology Co., Ltd. summarizes several precautions for enterprises applying for explosion-……

Latest Implementation Standard for Compulsory 3C Certification of Explosion proof Products

The standards for mandatory certification of explosion-proof electrical products were released on October 11, 2021 and implemented on May 1, 2022. The latest implementation standards for explosion-proof 3C certification are as follows: GB/T 3836.1-2021 Explosive Environments Part 1: General Requirements for Equipment G……

Specific Requirements for Plastic Enclosures of Explosion proof Electrical Equipment - Shenzhen Zhongnuo Testing

The limit value of surface resistance for non-metallic shells of explosion-proof equipment is required in hazardous areas with explosive dust or gases, vapors, such as coal powder, flour, aluminum powder, hydrogen gas, etc. Static electricity may cause fires or explosions, posing a high level of danger. Therefore, in e……

What is the relationship between explosion-proof certification and intrinsic safety certification?

Intrinsic safety is a type of explosion-proof protection, in addition to intrinsic safety, there are also explosion-proof, increased safety, sealing, and so on. The intrinsic safety certification can only say that this device adopts an intrinsic safety explosion-proof protection type and has obtained explosion-proof ce……

What is the process for obtaining explosion-proof 3C certification? Shenzhen Zhongnuo Testing

Explosion proof 3C certification CCC certification is also known as "China Compulsory Certification", abbreviated as CCC. It is a product qualification assessment system implemented in accordance with laws and regulations in China to protect consumer personal safety and national security, strengthen product q……

How to obtain the qualification certificate for installation, maintenance, and repair of explosion-proof electrical equipment?

The qualification certificate for installation, maintenance, and repair of explosion-proof electrical equipment is one of the essential qualifications for explosion-proof construction and renovation enterprises. Requirements and documents for obtaining the qualification certificate for explosion-proof electrical equipm……

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……