The importance and necessity of on-site explosion-proof inspection

With the increasing popularity of explosion-proof electrical appliances, many explosive hazardous areas have installed and used explosion-proof electrical appliances. Many end users believe that as long as explosion-proof electrical appliances are installed in explosive hazardous areas, everything will be fine. In many cases, the so-called explosion-proof electrical appliances do not have explosion-proof certificates or their explosion-proof certificates are expired or forged. The nameplate is inconsistent with the explosion-proof certificate, the explosion-proof type selection is not in line, gas explosion-proof electrical equipment and dust explosion-proof electrical equipment are mixed, the wiring of explosion-proof electrical appliances is improper, the circuit is not grounded, drilling holes and installing buttons on the explosion-proof shell cause explosion-proof failure, and explosion-proof electrical appliances are subjected to corrosion, high temperature, and intense vibration for a long time.

Regarding explosion-proof electrical appliances in use,AQ 3009-2007According to the standard of "Electrical Safety Explosion Prevention Specification for Hazardous Areas", explosion-proof electrical appliances in use must be at least3Entrust a testing center with explosion-proof professional qualifications once a year to conduct testing on the performance, installation, maintenance, etc. of explosion-proof electrical appliances. Any non compliant items must be rectified in a timely manner, and the inspection report and rectification situation must be filed with the safety production supervision and management department.

Conducting on-site inspections of explosion-proof electrical appliances in use is not only a requirement of the safety production department, but also a concern of the enterprise for its own life and property safety.

Explosion proof on-site safety inspection service field:

Including industries or fields such as petroleum, chemical, coal, military, aerospace, ships, ports, marine engineering, gas engineering, pharmaceuticals, machinery, textiles, electricity, light industry, grain processing and storage, wood processing, etc., hazardous areas with explosive gas environments and explosive or combustible dust environments are ensured to ensure explosion-proof safety and safeguard the development of our country and national economy.

Business scope of explosion-proof on-site safety inspection:

1. Explosion proof safety inspection of explosion-proof electrical equipment in hazardous areas

2. Explosion proof testing of explosive dust

3. On site assessment and verification of electrical equipment in dust explosion sites

4. Quality inspection and safety acceptance inspection of explosion-proof engineering in hazardous and explosive areas;

5. Explosion proof electrical and non electrical equipment, as well as explosion-proof engineering consulting/Design/examination/reform/construction/supervisor/check before acceptance;

6. Customized services for various explosion-proof technologies.

Explosion proof on-site safety inspection standards

1GB 50058-2014Design Specification for Electric Power Equipment in Explosive Hazardous Environments

2GB 3836.14-2014Explosive Environment14Part: Classification of Places - Explosive Gas Environments

3AQ 3009-2007Safety Code for Electrical Explosion Protection in Hazardous Areas

4GB 50257-2014Electrical Installation Engineering, Construction and Acceptance of Electrical Equipment in Explosive and Fire Hazardous Environments

5GB15577-2018Dust Explosion Prevention Safety Regulations

6GB12476.2-2010Electrical equipment for use in environments with combustible dust2Part: Selection and Installation

Information required for on-site explosion-proof inspection application

1. The area of the explosion-proof site;

2. Classification map of explosion hazardous areas;

3. The names and safety data sheets of explosive hazardous substances in the corresponding hazardous areas（MSDS）

4. List of explosion-proof electrical products, including information such as installation area and tag number

5. Copy of explosion-proof certificate for each explosion-proof electrical product

6. Explanatory document on special operating conditions for explosion-proof electrical equipment

7. Descriptive technical documents for intrinsic safety systems

8. Relevant information on installation quality

9. Cooperate with the rectification of the testing center

The process of applying for on-site explosion-proof inspection by enterprises

1. The enterprise provides us with the area of the explosion-proof site and the quantity of explosion-proof electrical products for evaluation and quotation.

2. Formally sign a cooperation agreement, and the enterprise provides detailed information on the explosion-proof site

3. Engineers go to the site to inspect explosion-proof electrical products and issue rectification opinions for non conformities

4. Enterprises cooperate with rectification within the predetermined period according to the rectification opinions

5. The engineer conducts another on-site evaluation and issues an on-site inspection report after passing the evaluation

6. The enterprise shall provide the final inspection report to the local safety supervision department for filing.

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