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.
Domestic explosion-proof certification models are divided into three cases -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
1. Explosion-proof certificate system
Applicable Products: Electrical and non-electrical equipment used in places with explosive gases and dust, excluding those for mining (except for products listed in the Explosion-proof 3C Catalogue).
Certification Model: Product Testing
Certification Certificate: Explosion-Proof Compliance Certificate
Certificate Validity: 5 years
Annual Audit Required: No
2. Explosion-proof 3C Certification System
Applicable Products: Electrical Equipment listed in the Explosion-Proof 3C Catalog
Certification Mode: Combination of Type Testing and Factory Audit
Certification Certificate: CCC Certificate
Certificate Validity: 5 years
Is Annual Audit Required: Annual Audit Required
3. Coal Safety/Mine Safety Certification System
Applicable Products: Various electrical and non-electrical equipment for use in both coal and non-coal mines underground
Certification Model: Combination of Type Testing and Factory Audit
Certification Certificate: Mine Product Safety Mark Certificate
Certificate Validity: 5 years
Annual Audit Required: Yes, an annual audit is required

ATEX Certification
ATEX is the European directive for "Equipment and protective systems intended for use in potentially explosive atmospheres."
The purpose is to establish a single market within Europe and eliminate trade technical barriers.
Ensure free circulation of equipment intended for potential explosive hazard environments among its member states.
This directive covers mining and non-mining equipment (including mechanical and electrical equipment).
Expand the potential explosive hazard environment to include airborne dust and combustible gases, as well as flammable vapors and mist.
Established basic health and safety requirements for the application of equipment intended for potential explosive environments.
And the conformity assessment procedures that must be adopted before equipment enters the European market.
The current directive is 2014/34/EU.

Market Access System for Explosion-Proof Products
1. Explosion-proof Certificate System: Applies to all explosion-proof products, utilizing the "type testing" method.
2. CCC Certification: Applicable only to certain explosion-proof products (excluding measuring instruments and explosion-proof lighting), with a method of "Type Testing + Factory Inspection"
3. Coal Mine Safety Mark (MA): Suitable for mining products, adopts the "type testing + factory inspection" method

North American Explosion-Proof Certification
North American Electrical Code (NEC) certification system (hereinafter referred to as NEC[NEC: National Electrical Code]).
Classification and grouping of explosive materials, hazard area delineation, explosion-proof protection methods.
There is a significant difference in the installation and wiring aspects between the standards supported by our national system and the explosion-proof certification system (hereinafter referred to as the GB system).
Currently, North American explosion-proof certification is divided into two major systems: Division and Zone. The Division system uses the explosion-proof marking native to the United States.
The Zone system adopts explosion-proof standards consistent with the IEC system.
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.