久久大全_国产传媒视频在线观看_婷婷在线免费_91人人看_亚洲视频在线观看_2020亚洲天堂

How to check the authenticity of the "Qualification Certificate for Installation, Maintenance and Repair of Explosion proof Electrical Equipment"?

The explosion-proof electrical installation, testing and maintenance qualification certificate is one of the essential qualifications for companies engaged in the explosion-proof electrical construction industry. As a professional agency for explosion-proof electrical installation, testing and maintenance qualification……

The GB3836-2021 domestic explosion-proof certification standard has been released!

As a professional explosion-proof certification agency, Zhongnuo Testing always stays at the forefront of explosion-proof certification standards and understands the latest explosion-proof certification information! Well, the latest explosion-proof certification standard GB3836-2021 has been released! The next step is ……

What is explosion-proof certification? What are the classifications of explosion-proof certification?

From the perspective of explosion-proof types, they can be classified into intrinsic safety type, explosion-proof type, sealed type, etc; From the perspective of applicable locations, it can be divided into gas explosion-proof certification, dust explosion-proof certification, and mining explosion-proof certification; ……

What are the explosion-proof certification agencies? Which one is the most authoritative?

The country conducts strict and rigorous assessments on the authorization of explosion-proof certification agencies. Not only does the CNAS qualification assessment apply to Nanyang CNEX, Shanghai NEPSI, and Tianjin PCEC, but also to emerging explosion-proof certification institutions such as Shenchuan Institute, Beiji……

Which organizations can do explosion-proof certification quickly?

Doing explosion-proof certification is actually a matter of mutual cooperation between institutions and enterprises. If the customer does not provide drawings and information in a timely manner, or if the product testing fails, it will delay the process. Moreover, institutions are not just one client. Of course, if the……

How to obtain an explosion-proof certificate and which units issue it?

The authorization of explosion-proof certificate issuing agencies by the state has undergone strict and rigorous assessments. Not only does the CNAS qualification assessment apply to Nanyang CNEX, Shanghai NEPSI, and Tianjin PCEC, but also to emerging explosion-proof certification institutions such as Shenchuan Institu……

Basic knowledge of explosion-proof stuffing box

Explosion proof stuffing boxes are widely used for sealing cables in explosion-proof electrical products, commonly including stuffing type cable entry devices and stuffing type conduit sealing devices. The filler type cable entry device is generally installed at the connection between the cable port and the explosion-p……

Design requirements for transparent components in explosion-proof enclosures

Explosion proof electrical equipment is widely used in hazardous areas of Zone 1 and Zone 2 in explosive gas environments. In order to facilitate users to observe, record, or distinguish the display data, operating status, or basic lighting function inside the device, manufacturing companies often install some transpar……

Relevant laws and regulations on regular testing of explosion-proof electrical equipment

Regular inspections are a powerful guarantee for the use and explosion-proof safety performance of explosion-proof equipment used in explosive hazardous areas throughout its entire lifecycle, including production, installation, use, inspection, maintenance, and exit from the market. Relevant laws and regulations in our……

Basic requirements for regular inspection of explosion-proof electrical equipment

As a third-party organization specializing in explosion-proof electrical testing, Zhongnuo Testing has unique insights into explosion-proof testing cycles, standards, qualifications, testing content, processes, and requirements for enterprises and personnel. Below, Zhongnuo Testing will share with you. The basic requir……