Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering one-stop explosion-proof technology consulting services.
What standards are used for explosion-proof electrical equipment testing and certification?
Firstly, it's important to clarify whether the product requires certification or if the on-site facility needs explosion-proof electrical testing.
On-site explosion-proof electrical equipment inspections are conducted in accordance with the provisions of AO3009-2007 standard, which requires at least one regular inspection every 3 years for electrical equipment in use.
Provide a test report. This is primarily for the users of explosion-proof equipment.
Product testing and certification generally refers to the process of conducting relevant tests on newly launched products in accordance with the GB/T 3836 series standards and obtaining a防爆 qualification certificate.
This requires the provision of product design drawings, manuals, and other documentation, typically for the manufacturer or supplier of the equipment.
ZhongNuo Inspection has been dedicated to explosion-proof testing and certification for many years, offering services including product design, testing, certification, and on-site testing and construction改造 services.
Offer customized explosion-proof technology and standard consulting services, with numerous collaboration cases. Welcome to send us a private message.

What test projects are required to apply for an explosion-proof certificate?
Explosion-proof products must undergo relevant tests to meet the requirements of the explosion-proof standards for obtaining an explosion-proof certification.
Different explosion-proof types, catering to equipment used in various explosive environments, require different explosion-proof testing items.
Many customers also want to know what testing projects are required for explosion-proof products? What specific requirements are there for the explosion-proof design of the product?
Next, let's take a look at some common explosion-proof testing items.
For example, with intrinsically safe products, the general test items include appearance and structure inspection, spark ignition test, dielectric strength, battery and battery pack testing, temperature rise test, transient energy test, etc.
Flameproof products mainly undergo tests including heat and cold resistance, internal ignition without propagation, shell pressure resistance, IP testing, temperature rise tests, etc.
Different test items, tailored to various modules or components of the product.
Each test item ensures that the product meets the explosion-proof standards and achieves the requirements for explosion-proof performance.
If a company is designing explosion-proof products and is unaware of the explosion-proof standards requirements,
ZhongNuo Inspection can provide guidance services for explosion-proof circuit design and explosion-proof structural design, including explosion-proof standard requirements, design key points, drawing guidance, etc.
We also offer proxy services for explosion-proof testing and certification.
Need this service? Feel free to message us anytime!

Domestic explosion-proof certification
Domestic explosion-proof certification is a compliance inspection conducted on explosion-proof products used in explosive environments (including electrical and non-electrical products), issuing an explosion-proof certificate to those that meet the GB/T3836 standard. Currently, the domestic explosion-proof certification standards are largely equivalent to the international IEC 60079 standard system.

North American Intrinsically Safe Certification
The North American explosion-proof certification system (hereinafter referred to as NEC system, with NEC standing for National Electrical Code) differs significantly from our country's explosion-proof certification system supported by the standard system (hereinafter referred to as GB system) in aspects such as classification and grouping of explosive materials, division of hazardous areas, explosion-proof protection methods, and installation wiring. Currently, North American explosion-proof certification is divided into two major systems: Division and Zone. The Division system uses the explosion-proof marking of the United States, while the Zone system adopts explosion-proof standards consistent with the IEC system.
Explosion Proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.