Shenzhen ZhongNuo Inspection & Technology Co., Ltd. offers on-site explosion-proof electrical inspection, explosion-proof project acceptance services, and can also provide explosion-proof rectification and construction services for non-compliant items.
How often should explosion-proof electrical equipment be inspected? How to apply for an explosion-proof electrical inspection report?
Should explosion-proof electrical equipment in use be inspected regularly? How often should a check report be generated? What standards are specified, and how are they defined? These are questions that many industrial clients with explosive hazards in chemical, grain and oil, and gas station fuel operations are eager to know. ChinaNu Inspection provides a simple explanation below.
Due to the industry's特殊性, facilities with explosive hazards must purchase and install equipment with a valid explosion-proof certification, and ensure proper installation and maintenance. In addition, regular explosion-proof safety checks and routine inspections and maintenance of these electrical devices are required to confirm their continued explosion-proof performance. The AQ3009-2007 "Electrical Explosion-Proof Safety Code for Hazardous Areas" also stipulates that periodic inspections should be conducted by safety inspection and testing institutions with explosion-proof qualifications, with intervals generally not exceeding 3 years.
ZhongNuo Inspection has provided on-site explosion-proof inspections and改造 services for various facilities including gas stations, oil depots, food factories, feed mills, and chemical plants, boasting a wealth of successful cases and industry experience.
If you happen to need a防爆电气检查报告 for such on-site requirements, feel free to message us for a detailed discussion.

How to conduct explosion-proof safety inspections for electrical equipment in use?
In accordance with the AQ3009-2007 "Electrical Explosion-Proof Safety Regulations for Hazardous Areas," explosion-proof electrical equipment in use must undergo a periodic explosion-proof inspection at least every 3 years to ensure their explosion-proof performance. The inspection items include the selection, installation, wiring, static electricity, grounding, and more of explosion-proof equipment. Inspection methods include visual inspection, general inspection, and detailed inspection. This requires on-site checks, where the client must provide information on the area of the explosion-proof zone, the number of electrical equipment, and the MSDS of the site. After the on-site inspection is completed, explosion-proof improvement recommendations or inspection reports will be issued based on the actual situation.
ZhongNuo Inspection has provided on-site explosion-proof electrical inspection services for various facilities such as gas stations, oil depots, food factories, feed mills, chemical plants, etc. We also offer explosion-proof整改 and construction services for non-compliant items identified during on-site inspections, with a wealth of successful cases and industry experience. If you happen to need an on-site explosion-proof electrical inspection report, feel free to message us for detailed communication.

Major contents of regular inspection for explosion-proof electrical equipment
1. Model Inspection
In strict accordance with relevant laws, explosion-proof electrical equipment must have standardized explosion-proof markings, and must pass the relevant explosion-proof standard checks before implementation. It is necessary to design the appropriate explosion-proof type, level, and temperature class for electrical equipment based on the specific working environment.
2. Installation Inspection
During the installation of electrical equipment, any oversight can potentially lead to losses. For instance, if the ventilation and exhaust system is not properly installed and is not adequately vented, there is a risk of explosion due to the electrical equipment's housing during operation. Therefore, precision is crucial during installation, and it must be completed according to relevant standards.
3. Line Inspection
Electrical equipment is often composed of a large number of interconnected wires, which can be particularly complex. If not properly connected, or if there are incorrect connections, or if the insulation of the wires peels off, it may lead to short circuits or overloads, resulting in arcs or sparks. Therefore, it is crucial to strengthen the inspection of circuit connections, especially the sealed ones, to ensure that the wire connections meet the requirements.
4. Grounding Inspection
Electrical equipment generates static electricity during operation. If there's too much static, sparks can occur upon discharge, hence it's crucial to implement proper grounding protection. This ensures static is promptly discharged, preventing explosions. Common grounding methods include working grounding, static grounding, and lightning protection grounding, etc. Engineers must select the appropriate grounding method based on the specific working environment and ensure it is both safe and secure.

Flameproof Field Safety Inspection Standards
1. Code for Design of Electrical Installations in Explosive Hazardous Environments - GB 50058-2014
2. GB 3836.14-2014 "Part 14: Classification of locations for explosive atmospheres - Explosive gas atmospheres"
3. AQ 3009-2007 "Electrical Explosion Protection Safety Specification for Hazardous Areas"
4. GB 50257-2014 "Electrical Installation Engineering, Construction and Acceptance of Electrical Installations in Explosive and Fire Hazardous Environments"
5. GB15577-2018 "Safety Code for Dust Explosion Prevention"
On-Site Explosion-Proof Electrical Equipment Regular Inspection Consultancy Service - Shenzhen ZhongNuo Inspection Technology Co., Ltd.