Electrical Control Integrated Device Category II Explosion-Proof Certification Consultancy

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 test items are required to apply for an explosion-proof certification?
Explosive-proof products must pass relevant testing requirements of the explosive-proof standards to apply for an explosive-proof certificate.
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 products?
Next, let's take a look at some common explosion-proof testing items.
For instance, with intrinsically safe products, typical test items include appearance and structure inspection, spark ignition test, dielectric strength, battery and battery pack testing, temperature rise test, transient energy test, and more.
Explosion-proof products mainly undergo tests including heat and cold resistance tests, internal ignition without propagation of explosion, shell pressure resistance, IP testing, temperature rise tests, etc.
Different testing items, tailored to various modules or components of the product.
Each test item ensures the product meets explosion-proof standards and fulfills 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 standards, design key points, drawing guidance, etc., and can provide explosion-proof testing and certification consultation services.
Feel free to DM us anytime if you have a need for this!

Currently, domestic explosion-proof certification is in accordance with the GB/T 3836 series standards. There are general standard requirements for explosion-proof products as well as specific standards. Different product structures, electrical parameters, installation methods, and usage locations are subject to various certification standards and testing items. Consequently, the explosion-proof design and requirements for products also vary. For instance, for intrinsically safe products, typical test items include appearance and structure inspection, spark ignition test, dielectric strength, battery and battery pack testing, temperature rise testing, transient energy testing, etc. For flameproof products, the main test items include heat and cold resistance tests, internal ignition non-propagation, shell pressure resistance, IP testing, temperature rise testing, etc.

Ex-proof certification and Ex-proof 3C certification are two different certification requirements for explosion-proof products. The main distinctions between them are as follows:
Scope of Applicable Products:
Ex-proof Certificate: Applicable to all ex-proof electrical and non-electrical products, regardless of whether they are listed in the Ex-proof 3C Certification Catalogue.
Explosion-Proof 3C Certification: Specifically refers to products listed in the Explosion-Proof 3C Certification Catalog, such as motors, fans, two-way radios, etc. If these products have already obtained an Explosion-Proof Certificate, they need to be converted to an Explosion-Proof 3C Certification.
Section II: Certification Methods:
Explosion-proof Certificate: Mainly confirms the product's compliance with relevant standards through product testing for its explosion-proof performance.
Explosion-proof 3C Certification: Adopting a "product testing + factory audit" approach, it not only requires the product itself to meet explosion-proof standards but also demands that the applicant's production facility or OEM/ODM factory complies with certain quality management systems and production conditions, necessitating annual supervision and audits.
Section 3: Certification Bodies and Standards:
Explosion-proof certificate: Issued by a third-party testing institution with the corresponding qualifications, based on relevant explosion-proof product standards.
Explosion-proof 3C Certification: Managed uniformly by the China Certification and Accreditation Administration (CNCA), with designated certification bodies issuing certifications, and specified testing laboratories conducting relevant tests. The certification is based on the mandatory product certification standards (i.e., the 3C standards) and relevant explosion-proof product standards.
IV. Market Access Requirements:
Ex-proof Certificate: It is one of the basic requirements for ex-proof products to enter the market, but not all ex-proof products require 3C certification.
Explosion-proof 3C Certification: Obtaining the explosion-proof 3C certification is a mandatory requirement for products listed in the explosion-proof 3C certification catalog to enter the market.
In summary, there are significant differences in the scope of application, certification methods, certification bodies and standards, as well as market access requirements between explosion-proof certificates and explosion-proof 3C certifications. Therefore, when deciding which certification to obtain, it's necessary to consider the specific product details and market access requirements. Should you have any questions or need further information, please feel free to consult Shenzhen ZhongNuo Testing Technology Co., Ltd. at any time.

For explosion-proof electrical testing institutions, Shenzhen ZhongNuo Testing Technology Co., Ltd. is a professional choice. We specialize in providing on-site explosion-proof testing and transformation services for various gas stations, gas stations, oil depots, food factories, feed mills, and chemical plants.
Our inspection services are conducted strictly in accordance with relevant standards and regulations, including the selection, installation, wiring, static electricity, and grounding of explosion-proof equipment. After inspection, if there are any non-compliant items, we will provide specific rectification suggestions to ensure your equipment meets explosion-proof safety requirements.
Additionally, as stipulated by AQ3009-2007 "Electrical Equipment for Hazardous Areas - Explosion Protection Specifications," electrical equipment for explosion-proof use must undergo at least one inspection of its explosion-proof performance, installation, maintenance, etc., every 3 years. With our experienced inspection team and extensive industry knowledge and qualifications, we can provide you with accurate and reliable test results and improvement recommendations.
If you have specific testing requirements or need further communication, please feel free to contact Shenzhen ZhongNuo Testing Technology Co., Ltd., and we will be dedicated to serving you!
Explosion-proof Certification Application Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.