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 items that fail inspection.
How often is the periodic inspection of explosion-proof electrical equipment conducted?
With the widespread use of explosion-proof electrical equipment, many explosive hazardous areas have adopted such devices. Many end-users believe that installing explosion-proof electrical equipment in hazardous areas is enough to ensure safety. However, in many cases, so-called explosion-proof equipment lacks valid certificates, or the certificates have expired or are counterfeit. There may be discrepancies between the markings and the certificates, inappropriate selection of explosion-proof types, mixed use of gas and dust explosion-proof equipment, drilling holes in explosion-proof enclosures, long-term corrosion, exposure to high temperatures, and severe vibrations. Regarding explosion-proof equipment in use, the AQ 3009-2007 "Electrical Safety and Explosion Proof Regulations for Hazardous Areas" stipulates that explosion-proof equipment in use should be inspected by a certified center with explosion-proof expertise at least once every 3 years for performance, installation, and maintenance. Immediate corrective actions must be taken for any non-compliance, and the inspection report and rectification details must be filed with the安全生产监督管理部门. Conducting on-site inspections of explosion-proof equipment in use is not only a requirement of the safety department but also a testament to a company's commitment to its own life and property safety.
ZhongNuo Inspection has provided on-site explosion-proof inspections and transformation services for various facilities such as 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 report on explosion-proof electrical inspections for this kind of on-site work, feel free to send us a private message for further discussion.

Does explosion-proof electrical equipment require an explosion-proof acceptance test 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 the use of explosion-proof equipment equivalent to overall 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 isn't just about the product itself; it also involves factors like installation methods and maintenance practices. In reality, explosions often occur due to improper use by users, leading to the failure of explosion-proof electrical equipment and causing accidents. This is something that warrants serious caution.
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 a qualified inspection institution with explosion-proof inspection资质 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 also necessary.
Continuous supervision should be carried out by the company's personnel, with corresponding inspection records kept, and any abnormal phenomena handled 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 inspection requirements and file the third-party qualification agency's Report and rectification status with the department of安全生产 supervision and management.

Regular inspection standards and cycles for explosion-proof electrical equipment
As explosion-proof electrical appliances become more widespread, they are installed and used in many hazardous explosive environments.
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 appliances do not have a valid explosion-proof certificate, or the certificate has expired or is fraudulent. The label does not match the explosion-proof certificate.
Selection of explosion-proof types is incorrect, gas explosion-proof electrical equipment and dust explosion-proof electrical equipment are mixed, improper wiring of explosion-proof electrical equipment installation, lines not grounded.
Holes are drilled in explosion-proof casings, and the installation of buttons can cause explosion-proof failure. Long-term exposure to corrosion, high temperatures, and severe vibrations affects explosion-proof electrical equipment.
For explosion-proof electrical equipment in use, the AQ 3009-2007 "Safety Requirements for Electrical Installations in Hazardous Areas" standard stipulates:
Electrical explosion-proof equipment in use should be inspected by a certified explosion-proof testing center at least once every 3 years to check its performance, installation, maintenance, etc.
Immediate corrective actions must be taken for non-compliance findings, and the inspection report and corrective measures must be filed with the safety production supervision and administration department.
Conducting explosion-proof site inspections on in-use explosion-proof electrical equipment is not only a requirement of the safety production department, but also a manifestation of the company's emphasis on its own life and property safety.

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 conducted? What are the explicit standards and how are they defined? These are questions that many clients with explosive hazards in industries like chemicals, grain and oil, and gas stations are eager to know. China Nu Inspection will simply answer these questions for you.
Due to the industry's特殊性, facilities with explosive hazards must purchase and install equipment with a legitimate explosion-proof certification and ensure proper installation and maintenance. In addition, regular safety checks and daily maintenance of these electrical devices are required to confirm their continued explosion-proof performance. AQ3009-2007 "Electrical Explosion-proof Safety Regulations for Hazardous Areas" also stipulates that these regular 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 such as 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 work, feel free to DM us for detailed discussion.
On-Site Explosion-Proof Electrical Equipment Regular Inspection Consulting Service - Shenzhen Zhongnuo Inspection Technology Co., Ltd.