Regular Explosion-Proof Performance Inspection Standard

Shenzhen ZhongNuo Inspection Technology Co., Ltd. offers on-site explosion-proof electrical inspection, explosion-proof project acceptance services, and can provide explosion-proof rectification and construction services for non-compliant items.
Shenzhen ZhongNuo Inspection Technology Co., Ltd. summarizes the past experience in explosion-proof electrical equipment inspections. The main items and contents of AQ3009 explosion-proof electrical equipment inspections:
According to the provisions of Section 7 of AQ3009-2007 "Safety Code for Electrical Explosion Protection in Hazardous Areas" (implemented as of January 1, 2008): Electrical equipment used in hazardous areas shall undergo initial and periodic inspections. The inspections must be carried out by an explosion-proof qualified inspection agency, with the interval generally not exceeding 3 years. The enterprise shall take timely corrective measures based on the inspection results and file the Report and the status of rectification with the department of安全生产 supervision and management.
The "AQ 3009-2007 Electrical Safety and Explosion Prevention Code for Hazardous Areas" serves as a Chinese industry standard, with the preface clearly stating that Chapters 4, 5, 6, and 7 are mandatory and must be strictly enforced. Therefore, similar safety regulations are part of the legal and regulatory framework and must be strictly enforced!

Main Content 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 can only be implemented after passing the relevant explosion-proof standard inspection. 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 electrical equipment installation, any oversight can potentially lead to losses. For instance, if the ventilation and exhaust system is not properly installed and not adequately ventilated, there's also a risk of explosion for the electrical equipment's casing during operation. Therefore, meticulous attention must be paid during installation, and it is essential to follow relevant standards.
3. Wire inspection
Electrical equipment is often composed of numerous interconnected wires, which can be particularly complex. If they are not securely connected, or if there are incorrect connections, or even if the insulation of the wires has worn off, it can lead to short circuits or overloads, potentially causing arcs or sparks. Therefore, it is crucial to enhance the inspection of circuit connections, especially the sealed sections, to ensure the wires are properly connected.
4. Grounding Inspection
Electrical equipment generates static electricity during operation. If there's an excessive amount of static, sparks may occur upon discharge. Therefore, proper grounding protection is essential to promptly dissipate static electricity and prevent 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 that the grounding is both safe and secure.

Do explosion-proof areas require regular inspections? Which standard stipulates this?
In explosive hazard areas, the installation and use of explosion-proof equipment is a basic requirement. In addition, strict explosion-proof requirements must be met for wiring, grounding, ventilation, penetration through walls, explosion venting, and explosion resistance in such locations.
Do such locations require regular inspections?
Yes. According to the provisions of AQ 3009-2007 "Electrical Safety and Explosion-proof Regulations for Hazardous Areas," such locations must undergo regular explosion-proof inspections by a qualified third-party entity, in addition to daily checks, to ensure safety.

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 layout, static electricity, grounding, and more of the explosion-proof equipment. Inspection methods include visual inspections, general inspections, and detailed inspections. This requires on-site inspections, where the client must provide information such as 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, a report on explosion-proof recommendations or an explosion-proof inspection report 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 factories, and chemical plants. We also offer explosion-proof correction and construction services for items not meeting on-site explosion-proof inspection standards, 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 private message us for specific communication.
On-site Explosion Proof Electrical Equipment Regular Inspection Consulting Service - Shenzhen ZhongNuo Testing Technology Co., Ltd.