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Process and requirements for obtaining explosion-proof certificate for ultrasonic thickness gauge

The basic process for obtaining an explosion-proof certificate at Zhongnuo Testing involves the customer providing a product manual, conducting a preliminary evaluation, and Zhongnuo proposing a preliminary opinion on the explosion-proof certification mark. Zhongnuo has had technical exchanges with the customer in the ……

The main differences and connections between explosion-proof certificate and explosion-proof 3C certification

The main differences and connections between explosion-proof certificate and explosion-proof 3C certification are as follows: 1. Different product scopes. Both explosion-proof certificate and explosion-proof CCC certification are certification requirements for explosion-proof equipment. Whether to apply for explosion-p……

Certification bodies and laboratories for explosion-proof CCC certification

Not all institutions can do explosion-proof 3C certification, there are designated certification agencies and laboratories. At present, there are six designated issuing agencies for the first batch of explosion-proof electrical CCC certification certificates announced by the State Administration for Market Regulation, ……

What is the relationship between explosion-proof certification, explosion-proof qualification certificate, and explosion-proof 3C certification?

Explosion proof certification: Explosion proof certification is the process of determining whether equipment meets the requirements of explosion-proof standards, conducting type tests and routine tests for adaptation, and issuing relevant certificates of conformity. Explosion proof certificate: a document used to deter……

Are the execution standards for explosion-proof certification and explosion-proof 3C certification the same?

Since October 1, 2019, when some explosion-proof electrical equipment was included in the national mandatory product certification catalog, people have been confused about the relationship between the original production license, explosion-proof qualification certificate, and explosion-proof 3C certification. Below is ……

Example of Changes in the Coal Safety Certification Mark of the New GB/T3836 Standard

a) Change from mining explosion-proof type (Ex d I Mb) to mining explosion-proof type (Ex db I Mb); b) The mining explosion-proof and sealing type (Ex d mb I Mb) has been changed to the mining explosion-proof and sealing type (Ex db mb I Mb); c) The explosion-proof and intrinsic safety sound and light alarm, explosion-……

Example of Explosion proof Signs in the New GB/T3836 Standard

Example of Explosion proof Signs: Ex ib I Mb Ex： Electrical equipment for explosion-proof gas environment, symbol ib: protection type is intrinsic safety type I: coal mine gas environment Mb: equipment protection level, can be used in Zone 1 Ex db eb II C T6 Gb Ex: electrical equipment for explosion-proof gas environme……

What do Class II and Class III explosion-proof certificates mean respectively? What are the requirements for processing?

Explosion proof electrical equipment is classified into Class I Explosion proof Certificate, Class II Explosion proof Certificate, and Class III Explosion proof Certificate according to different usage locations. The Class I explosion-proof certificate we refer to refers to the certification certificate used for underg……

What is the qualification certificate for installation, maintenance, and repair of explosion-proof electrical equipment?

Many institutions engaged in engineering construction, especially when it comes to installation and construction in explosive areas, require owners to provide relevant explosion-proof electrical installation and construction qualification certificates, which we call "Explosion proof Electrical Equipment Installati……

The difference between explosion-proof product certification and explosion-proof CCC certification

Since the announcement by the State Administration for Market Regulation in July 2019 on the implementation requirements for the transition from production licensing to mandatory product certification management for explosion-proof electrical and other products, it has been almost two years now. Many companies producin……