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 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 issued? What standards are explicitly stated, 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 explain it 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 equipment must be conducted to confirm their continued explosion-proof performance. The AQ3009-2007 "Safety Code for Electrical Explosion-Proof in Hazardous Areas" also stipulates that periodic inspections should be carried out 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改造 services for various gas stations, fuel stations, oil depots, food factories, feed factories, 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 the site, feel free to DM us for a detailed discussion.

Shenzhen Zhongnuo Testing Technology Co., Ltd. summarizes the past experience in explosion-proof electrical inspection, the main items and contents of AQ3009 explosion-proof electrical inspection:
According to the provisions of Section 7 of AQ3009-2007 "Electrical Explosion Protection Safety Specification for Hazardous Places" (implemented as of January 1, 2008): Electrical equipment used in hazardous areas must undergo initial and periodic inspections. These inspections must be conducted by a qualified explosion-proof inspection agency, with intervals generally not exceeding 3 years. Enterprises should take corrective actions promptly based on the inspection results and file the Report and the status of corrections with the安全生产 Supervision and Management Department.
The "AQ 3009-2007 Specification for Electrical Safety and Explosion-Proof of Hazardous Areas" serves as a Chinese industry standard, with the preface explicitly stating that Chapters 4, 5, 6, and 7 are mandatory and must be strictly enforced. Therefore, similar safety regulations are part of the legal and regulatory framework and must be strictly enforced!

Dust Explosion Hazardous Area Explosion Proof Safety Inspection Standard
GB15577-2018 Dust Explosion Protection Safety Code
GB17440-2008 Food Processing Industry Dust Explosion Prevention Safety Standard
GB17918-2009 Dust Explosion Prevention Safety Specification for Bulk Grain Handling Systems at Ports
AQ4229-2013 Grain Vertical Silo Dust Explosion Prevention and Safety Standard
AQ4230-2013 Grain Flat Storage Silo Dust Explosion Prevention Safety Standard
AQ4232-2013 Dust Explosion Prevention Specification for Plastic Production Systems
GB18245-2000 Processed System Dust Explosion Prevention Safety Standard
GB19081-2008 Safety Standards for Dust Explosion Prevention in Feed Processing Systems
GB16543-2008 Specification for Dust Explosion Prevention in Blast Furnace Injection Coal System
GB17269-2003 Aluminum Processing System Dust Explosion Prevention Safety Standard
GB/T16505-1995 Guide for Dust Explosion Relief
GB/T 17919-2009 Guidelines for Explosion-proof Dust Collector in Hazardous Dust Explosion Areas
GB 12158-2006 General Guidelines for Preventing Static Electricity Accidents
AQ3009-2007 Electrical Explosion-Proof Safety Standard for Hazardous Areas
GB50058-2014 Code for Design of Electrical Installations for Explosion and Fire Hazardous Environments
GB50257-2014 Code for Electrical Installation Engineering in Explosive and Flammable Gas and Dust Environments - Electrical Construction and Acceptance Standards

What certifications are required for regular inspections of explosion-proof electrical equipment?
The periodic inspection of explosion-proof electrical equipment, as mentioned in the previous text and conducted according to the AQ 3009-2007 "Electrical Safety and Explosion-Proof Standards for Hazardous Areas," must be carried out by a certification center with explosion-proof professional qualifications. This certification is authorized by the CNAS and can be verified on the CNAS website.
On-Site Explosion-Proof Electrical Equipment Regular Inspection Consultancy Service - Shenzhen Zhongnuo Inspection Technology Co., Ltd.