Shenzhen ZhongNuo Inspection & Technology Co., Ltd. offers on-site explosion-proof electrical inspection, explosion-proof project acceptance services, and consulting services. We also provide explosion-proof rectification and construction services for items not meeting inspection standards.
We understand that places involving explosive gases and dust require regular explosion-proof electrical inspections. What exactly is checked during these inspections?
Electrical Explosion-Proof Safety Inspection for Hazardous Areas
Model Inspection
In strict accordance with relevant laws, the explosion-proof marking of explosion-proof electrical equipment must be standardized, and it can only be implemented after passing the corresponding explosion-proof standard inspection and obtaining the qualification. 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 sufficiently unobstructed, and if the electrical equipment's casing has the potential to explode during electrical operations, it is crucial to install with precision and adhere 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 due to the insulation layer of the wires coming off, it may cause short circuits or overloads, leading to arcs or sparks. Therefore, it is crucial to strengthen the inspection of circuit connections, especially the sealing of wires, to ensure that the connections meet the requirements.
4. Grounding Inspection
Electrical equipment generates static electricity during operation. When static accumulates excessively and discharges, electrical sparks may occur. Therefore, it is crucial to implement proper grounding protection to promptly dissipate static electricity and prevent explosions. Common grounding methods include working grounding, static grounding, and lightning protection grounding. Engineers must select the appropriate grounding method based on the specific working environment and ensure that the grounding is safe and secure.
Chemical companies must regularly maintain and inspect explosion-proof electrical and anti-static facilities in hazardous areas to ensure they are always operating in a normal state. For dangerous sites, electrical explosion-proof safety inspections should evolve with scientific development and the times, strengthening the discovery and invention of new inspection methods and means. Continuously apply new knowledge, technology, and management methods to prevent latent dangers and eliminate unsafe factors that may arise.

ZhongNuo Inspection offers a range of explosion-proof site safety inspection services:
1. Hazardous Area Explosion-Proof Electrical Equipment Safety Inspection
2. Explosive Dust Explosion Proof Testing
3. On-site Assessment of Electrical Equipment in Dust Explosion Hazards Areas
4. Explosion-proof quality inspection for hazardous explosive areas and explosion-proof safety acceptance inspection.
5. Explosion-proof electrical and non-electrical equipment, as well as consulting, renovation, construction, and acceptance of explosion-proof projects.
6. Explosion-proof technology consulting services.

The AQ3009 "Electrical Explosion Protection Safety Code for Hazardous Areas" stipulates that periodic inspections of hazardous areas should be entrusted to safety production inspection institutions with explosion-proof qualifications, with intervals generally not exceeding 3 years. We offer on-site explosion-proof inspection consulting services, covering safety inspections of electrical explosion protection, static electricity prevention, dust explosion hazard areas, flammable gases, and other safety facilities and equipment. We are responsible for explosion-proof equipment design and selection, maintenance and repair of in-use explosion-proof equipment, on-site explosion-proof safety inspections in explosive gas environments and flammable dust environments, ensuring safe production for enterprises producing hazardous chemicals and those with explosion hazard areas.

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 the explosion-proof equipment. Inspection methods include visual inspections, general inspections, and detailed inspections. This inspection must be conducted on-site, and the client is required to provide information such as the area of the explosion-proof zone, the number of electrical equipment, and the MSDS on-site. After the on-site inspection is completed, explosion-proof improvement recommendations or an explosion-proof inspection report will be issued based on the actual conditions.
ZhongNuo Inspection has provided on-site explosion-proof electrical inspection services for various facilities such as gas stations, oil depots, food factories, feed mills, and chemical plants. 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 need to prepare an explosion-proof electrical inspection report for on-site requirements, feel free to message us for specific discussions.
On-Site Explosion Proof Electrical Equipment Regular Inspection Consulting Service - Shenzhen ZhongNuo Testing Technology Co., Ltd.