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.
Upon completion of the explosion-proof project, it is required to have the project inspected by a third-party institution with explosion-proof inspection qualifications (Shenzhen ZhongNuo Testing Technology Co., Ltd.) before it can be put into use.
Explosion-proof project acceptance criteria
1. The explosion-proof certification number issued by the inspection unit must be marked on the label of explosion-proof electrical equipment.
2. The types, levels, and groups of explosion-proof electrical equipment should conform to the design.
3. The housing of explosion-proof electrical equipment should be free from cracks and 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. Ventilation and exhaust systems of positive-pressure electrical equipment should be unobstructed, correctly connected, and the installation positions of intake and outlet should meet requirements.
5. Excess entry ports of 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 intrinsically safe electrical equipment shall conform to the design in terms of routing and elevation; the lines should be marked with a sky blue sign.
8. The grounding or neutral connection of electrical equipment, as well as static-dissipative wiring, should comply with design specifications, ensuring a firm and reliable grounding.

Do explosion-proof areas require regular inspections? Which standard specifies this?
In areas with explosive hazards, the installation and use of explosion-proof equipment is a basic requirement. In addition, there are strict explosion-proof requirements for wiring, grounding, ventilation, penetration through walls, and explosion relief and resistance in such locations.
Do these locations require regular inspections?
Yes. According to the AQ 3009-2007 "Electrical Safety and Explosion Proof Regulations for Hazardous Areas," in addition to routine inspections, these sites must undergo regular explosion-proof checks by a qualified third-party organization to ensure safety.

Regulations and laws governing regular inspections of explosion-proof electrical equipment:
Explosion-proof equipment used in hazardous areas, throughout its entire lifecycle from production, installation, operation, inspection, maintenance, to withdrawal from the market,
Regular inspections provide a strong guarantee for their usage status and explosion-proof safety performance. Relevant laws and regulations in our country also have corresponding provisions.
There is a clear stipulation in the standard AQ3009-2007 "Electrical Safety and Explosion-Proof Regulations for Hazardous Areas":
Regular inspections should be entrusted to safety production inspection agencies with explosion-proof professional qualifications, with the interval generally not exceeding 3 years.
The company should promptly implement corrective measures based on the inspection results and file the inspection report and the rectification status with the safety production supervision and management department.
The preface of AQ3009-2007 "Electrical Safety and Explosion-Proof Regulations for Hazardous Areas" also explicitly states that Chapters 4, 5, 6, and 7 are mandatory and must be strictly enforced. Therefore, such safety regulations are part of the legal and regulatory framework and must be strictly enforced as mandatory requirements!

Do you need to conduct an explosion-proof electrical inspection and acceptance report after construction at an explosion-proof site? What standards are followed?
The explosion-proof performance of explosion-proof products is not just about the equipment itself, but also involves the selection of the 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 regular maintenance that damages the equipment's explosion-proof performance 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 standards are mainly based on AQ 3009, GB/T3836.15, GB/T3836.16, GB 50257, GB 50058, and others, and a explosion-proof electrical inspection report is issued.
After the installation and acceptance of explosion-proof equipment, it's not a one-time task. To ensure the equipment operates effectively and can be used safely in hazardous areas over a long term, continuous supervision and regular inspections of the in-use explosion-proof equipment are mandatory.
The interval for regular inspections generally does not exceed 3 years.
ZhongNuo Inspection has provided on-site explosion-proof electrical inspection and explosion-proof renovation services for various gas stations, oil stations, oil depots, food factories, feed factories, chemical plants, etc., with a wealth of successful cases and industry experience.
If you happen to need a report on explosion-proof electrical inspections for the site, feel free to DM us for specific discussion.
On-Site Explosion-Proof Electrical Equipment Regular Inspection Consulting Service - Shenzhen Zhongnuo Inspection Technology Co., Ltd.