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.
How to conduct explosion-proof safety inspections for electrical equipment in use?
In accordance with the AQ3009-2007 "Electrical Explosion Protection 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 inspection is to be conducted on-site, requiring the customer 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 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, and more. We also offer explosion-proof correction 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 conduct on-site explosion-proof electrical inspection reports, feel free to message us for specific discussions.

Standards and cycles for regular inspections of explosion-proof electrical equipment
With the increasing popularity of explosion-proof electrical equipment, such equipment is now installed and used in many explosive hazard areas.
Many end-users believe that as long as explosion-proof electrical equipment is installed in explosive hazard areas, everything is taken care of.
In many cases, so-called explosion-proof electrical equipment lacks a valid explosion-proof certificate, or the certificate has expired or is counterfeit. The label does not match the explosion-proof certificate.
Inappropriate explosion-proof type selection, misuse of gas explosion-proof electrical equipment with dust explosion-proof electrical equipment, improper wiring for explosion-proof electrical installation, lack of grounding of the circuit.
Holes in explosion-proof casings, button installation leading to explosion-proof failure, long-term exposure of explosion-proof electrical equipment to corrosion, high temperatures, and intense vibrations.
For explosion-proof electrical equipment in use, the AQ 3009-2007 "Electrical Safety and Explosion Protection Regulations for Hazardous Areas" standard stipulates:
Blast-proof electrical equipment in use should be inspected by a certification center with blast-proof expertise at least once every 3 years for its performance, installation, maintenance, etc.
Immediate corrective actions must be taken for non-conformities found during inspections, and the inspection report and corrective measures must be filed with the safety supervision and management department.
Conducting explosion-proof site inspections on electrical equipment in use is not only a requirement of the safety production department, but also a testament to the company's emphasis on its own life and property safety.

AQ3009 "Electrical Explosion Protection Safety Regulations for Hazardous Places" stipulates that regular inspections of hazardous places 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 electrical explosion protection safety, static electricity prevention, dust explosion hazardous places, flammable gas, and safety inspections of related 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 and combustible dust environments, and safeguarding the safety production of enterprises producing hazardous chemicals and places with explosion hazards.

Is a explosion-proof equipment acceptance required after installation?
Many corporate customers are puzzled: Does the installation of electrical equipment with a valid and authentic explosion-proof certification mean it can be used normally?
Is using explosion-proof equipment equivalent to the entire system being explosion-proof?
We understand that each product has its lifecycle, from production, market launch, end-user use, wear and tear, to obsolescence. As special equipment in a specialized industry, the lifecycle of explosion-proof equipment is not just about the product itself, but also its installation method, maintenance and care. In practice, it is often the case that improper use by the user leads to the failure of explosion-proof electrical equipment, causing explosion accidents, which is something to be vigilant about.
Therefore, the installation and acceptance of the newly introduced explosion-proof equipment is particularly necessary and important.
After the explosion-proof equipment is installed, an initial check should be conducted by an inspection agency with explosion-proof inspection qualifications before transferring the project to the user, to ensure the entire project's explosion-proof safety performance. The explosion-proof acceptance standards are based on mandatory standards such as AQ 3009, GB/T3836.15, GB/T3836.16, GB 50257, etc.
After the explosion-proof equipment installation and acceptance, it is not a one-time task. To ensure the equipment operates effectively and can be safely used in hazardous areas over the long term, continuous supervision and regular inspections of the in-use explosion-proof equipment are necessary.
Continuous supervision should be carried out by the company's personnel, with corresponding inspection records maintained, and any abnormal phenomena addressed promptly.
Regular inspections should be entrusted to qualified inspection agencies, with intervals generally not exceeding 3 years. Enterprises should promptly implement explosion-proof rectification measures for items that do not meet the inspection criteria, and file the third-party qualification agency's Report and rectification status with the safety production supervision and management department.
On-Site Explosion-Proof Electrical Equipment Regular Inspection Consulting Service - Shenzhen ZhongNuo Inspection Technology Co., Ltd.