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 not meeting inspection standards.
After completion of the explosion-proof project, it requires a third-party institution with explosion-proof inspection qualifications (Shenzhen ZhongNuo Inspection Technology Co., Ltd.) to conduct the project acceptance. Only upon passing the acceptance can the project be put into use.
Explosion-proof engineering acceptance contents
Label of explosion-proof electrical equipment must include the explosion-proof certificate number issued by the inspection unit.
2. Types, levels, and groups of explosion-proof electrical equipment should comply with the design.
3. The housing of explosion-proof electrical equipment should be free of cracks or damage; the paint should be intact. The cover of the junction box should be securely fastened, and the fixing bolts and anti-loosening devices should be in place.
4. The ventilation and exhaust systems of positive-pressure electrical equipment should be unobstructed, properly connected, and the installation locations of the inlets and outlets meet the requirements.
5. Excess entry ports for electrical equipment should be sealed as per regulations.
6. The installation of sealed devices in electrical circuits should comply with regulations.
7. Wiring engineering for inherently safe electrical equipment should comply with the design; the lines should be marked with a sky blue sign.
8. The grounding or neutral connection of electrical installations, as well as static electricity prevention wiring, should comply with design requirements and ensure a firm and reliable grounding.

Do you need to conduct an explosion-proof electrical inspection and acceptance report after the explosion-proof construction? What standards are followed?
The explosion-proof performance of explosion-proof products is not just about the equipment itself; it also involves the selection of equipment, installation methods, on-site wiring, and daily maintenance and care practices.
Improper selection and installation of explosion-proof equipment, non-compliance with standard wiring requirements on-site, and daily maintenance damage that compromise the equipment's explosion-proof characteristics can all lead to the loss of explosion-proof properties, posing a risk of explosion.
Therefore, the installation and acceptance of the newly introduced explosion-proof equipment is particularly necessary and important.
The explosion-proof acceptance criteria are primarily based on standards such as AQ 3009, GB/T3836.15, GB/T3836.16, GB 50257, and GB 50058, with an explosion-proof electrical inspection report provided.
After the installation and acceptance of explosion-proof equipment, it is not a one-time task. To ensure that the explosion-proof equipment remains in good working condition and can be safely used in hazardous areas for the long term, continuous supervision and regular inspections of the equipment in use are essential.
The interval for regular inspections typically does not exceed 3 years.
ZhongNuo Inspection has provided on-site explosion-proof electrical inspections and explosion-proof renovation services for various gas stations, fuel 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 this kind of on-site work, feel free to message us for specific discussion.

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?
Does the use of explosion-proof equipment equate to overall explosion-proofing?
We understand that each product has its lifecycle, from production, market launch, end-user usage, wear and tear to obsolescence. As special equipment in a specialized industry, the lifecycle of explosion-proof equipment is not only about the product itself but also its installation method, maintenance practices, and more. In reality, it's often the improper use by the users that leads to the failure of explosion-proof electrical equipment and subsequent explosion accidents, which is a matter of great concern.
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 inspection should be conducted by a qualified inspection agency with explosion-proof inspection资质 prior to transferring the project to the user, to ensure the entire project's explosion-proof safety performance. 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 explosion-proof equipment installation and acceptance, it's not a one-time solution. 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 conducted by the company's personnel, and corresponding inspection records should be kept. Any abnormal phenomena should be 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 any items that do not meet inspection requirements and report the third-party qualification agency's Report and rectification status to the safety production supervision and management department for record-keeping.

Major contents of regular inspection for explosion-proof electrical equipment
1. Model Inspection
In strict accordance with relevant laws, the explosion-proof markings on explosion-proof electrical equipment must be standardized, and they must pass the relevant explosion-proof standard inspections before implementation. 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 lead to potential losses. For instance, if the ventilation and exhaust system is not properly installed, it may not be adequately ventilated. Additionally, the outer shell of electrical equipment can pose an explosion risk during operation. Therefore, meticulous attention must be given to the installation process, and it must be carried out according 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 if the insulation of the wires peels off, it may lead to short circuits or overloads, resulting in 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. 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.
On-site explosion-proof electrical equipment regular inspection consulting service - Shenzhen Zhongnuo Testing Technology Co., Ltd.