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Can coal safety certification be converted to explosion-proof 3C certification?

According to the announcement of the State Administration for Market Regulation, starting from October 1, 2020, some explosion-proof electrical equipment will be included in the national mandatory product certification catalog, namely CCC certification. Products belonging to the explosion-proof 3C certification catalog……

The Important Significance of Anti explosion Doors in Explosive Hazardous Areas

Anti explosion door construction and installation: Anti explosion doors are designed to resist the combustion and explosion of explosive hazardous substances outside the door caused by accidents, ensuring the safety of personnel and the integrity of equipment behind the door, and avoiding the harm of explosion shock wa……

Common phenomena of explosion-proof electrical equipment failure

The explosion-proof shell of electrical equipment loses its explosion-proof resistance or explosion-proof performance (i.e., no explosion-proof performance), which is considered to be explosion-proof. The common explosion-proof phenomena of explosion-proof electrical equipment include: 1. Severe deformation or cracking……

What are the requirements for installing explosion-proof instruments and meters in explosive hazardous areas?

Explosion proof electrical equipment installation 1. Instruments, electrical equipment, and installation materials used in explosive hazardous areas, such as junction boxes, junction boxes, terminal boxes, etc., must have an explosion-proof certificate issued by an authorized agency in the country. Before installation,……

Do we need to indicate the explosion-proof certificate number on the explosion-proof nameplate?

Do we need to indicate the explosion-proof certificate number on the explosion-proof nameplate? Yes, the explosion-proof nameplate must include the explosion-proof certificate number! The explosion-proof nameplate is the ID card and simple manual of explosion-proof electrical equipment, which includes the product name,……

Classification of explosive hazardous areas

Classification of explosive hazardous areas for explosion-proof certification

The main differences between increased safety "e" and non spark "nA" explosion-proof motors

The increased safety "e" motor and the non sparking "nA" motor are very similar in general structure, and even have similar test items and inspection requirements. Many people cannot accurately distinguish the requirements of these two types of explosion-proof motors. Here is a simple comparison, in……

Requirements for metal wall thickness around blind holes on explosion-proof shells

According to Article 11.6 of GB 3836.2-2010, for screw holes or double headed bolt holes that do not penetrate the wall of the explosion-proof shell, the remaining thickness of the explosion-proof shell wall should be at least one-third of the diameter of the bolt or double headed bolt, with a minimum of 3mm. Q: Is the……

What information is required for SIL level assessment?

SIL certification level pre evaluation submission document list 1, product user manual 2, product safety function list 3, product safety manual 4, failure mode analysis (FMEDA) 5, quality management system certificate (ISO9001 certificate) 6, product photos (including representative model product front and side photos)……

What is the difference between explosion-proof and increased safety explosion-proof electrical equipment?

The explosion-proof principle of explosion-proof electrical equipment is designed according to GB 3836.1 and GB 3836.2 standards. Electrical components are installed inside an enclosure with explosion-proof performance, which can withstand the explosive mixture entering the interior of the enclosure through any joint s……