Shenzhen Zhongnuo Testing 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.
Does explosion-proof electrical equipment require an explosion-proof acceptance test after installation?
Many corporate clients 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 the entire system being explosion-proof?
We understand that each product has its lifecycle, from production to market launch, end-user usage, wear and tear, and ultimately, obsolescence. As specialized equipment in a specialized industry, the lifecycle of explosion-proof equipment is not only about the product itself but also its installation methods and maintenance practices. In reality, explosions often occur due to improper use by the user, leading to the failure of explosion-proof electrical equipment and 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 by a qualified inspection agency with explosion-proof inspection资质 should be conducted prior to transferring the project to the user, to ensure the overall explosion-proof safety performance of the project. The explosion-proof acceptance criteria are based on mandatory standards such as AQ 3009, GB/T3836.15, GB/T3836.16, GB 50257, etc.
After the installation and acceptance of explosion-proof equipment, it's not a one-time solution. To ensure that the explosion-proof equipment remains in good working condition and can be safely used in hazardous areas over the long term, continuous supervision and regular inspections of the equipment in use are essential.
Continuous supervision should be conducted by the company's personnel, with corresponding inspection records kept, and any abnormal phenomena should be 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.

Explosion-proof Field Safety Inspection Standards
1. GB 50058-2014 "Code for Design of Electrical Installations in Explosive Hazardous Environments"
2. GB 3836.14-2014 "Part 14: Division of locations – Explosive gas atmospheres for explosive environments"
3. AQ 3009-2007 "Electrical Explosion Protection Safety Code for Hazardous Areas"
4. GB 50257-2014 "Installation Engineering of Electrical Equipment, Construction and Acceptance of Electrical Equipment in Explosive and Fire Hazardous Environments"
5. GB15577-2018 "Safety Code for Dust Explosion Prevention"

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 checked regularly? How often should a check report be generated? What standards explicitly stipulate this, and how are they defined? These are questions that many industrial clients dealing with explosive hazards in chemical, grain and oil, and gas stations are eager to know. China Noble 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 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 Regulations for Hazardous Areas" also stipulates that periodic inspections should be conducted by safety production 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 transformation services for various gas stations, gas stations, oil depots, food factories, feed mills, chemical plants, etc., with 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 send us a private message 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 can only be implemented after passing the relevant explosion-proof standard inspections. It is necessary to design the appropriate explosion-proof type, level, and temperature group 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 is not adequately ventilated, or if the electrical equipment's casing could potentially explode during electrical operations, these issues must be meticulously addressed. Therefore, during installation, it is crucial to adhere to relevant standards and ensure precision.
3. Line Inspection
Electrical equipment is often composed of a large number of interconnected wires, which can be particularly complex. If not securely connected, or if there are incorrect connections, or due to insulation layer peeling off from the wires, it may lead to short circuits or overloads, causing arcs or sparks. Therefore, it is crucial to strengthen inspections of the circuit, especially the wire密封, 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, a discharge can cause sparks. Therefore, proper grounding protection is essential to dissipate static electricity promptly 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 both safe and secure.
On-site Explosion-Proof Electrical Equipment Regular Inspection Consultancy Service - Shenzhen ZhongNuo Inspection Technology Co., Ltd.