Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof CCC certification. We have an extensive portfolio of consulting cases in the field of explosion-proof 3C certification. We are well-versed in the application process and technical requirements for explosion-proof 3C certification, and we offer services such as application assistance and factory audit guidance.
Electrical Equipment Used in Combustible Dust Environments Seeking防爆CCC Certification Standards
Explosion-proof Type: Intrinsically Safe
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.4-2021 Explosive Atmospheres Part 4: Equipment protected by intrinsic safety "i"
Exlosion-proof Type: Dust-ignition-proof Enclosure
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.31-2021 Explosive Atmospheres, Part 31: Equipment protected by dust ignition-proof enclosures "t"
Explosion-proof Type: Encapsulation Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.9-2021 Explosive Atmospheres Part 9: Equipment protected by cast-in “m” type enclosures
Explosion-proof Type: Positive Pressure Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres, Part 1: Equipment, General Requirements
GB/T 3836.5-2021 Explosive Atmospheres, Part 5: Equipment protected by positive pressure enclosure "p"

Certified explosion-proof composite products with explosion-proof certifications are not listed in the explosion-proof CCC catalog, but the components inside are. How should this be handled?
ZhongNuo Inspection: If components are self-manufactured, a CCC certificate must be applied for. If purchased externally, components with a CCC certificate must be procured.

What standards are used for explosion-proof certification? What are the technical requirements?
An explosion-proof type is a type of explosion prevention for electrical equipment.
The housing is capable of withstanding explosive mixtures entering the housing through the housing joint surfaces or structural gaps, without damage upon internal explosion.
And ignite an explosive gas atmosphere formed by one, multiple gases, or vapors.
The explosion-proof housing must possess both explosion-proof and explosion-resistant properties. Generally, the outer casings of products designed for explosion-proofing tend to be rather bulky.
Products and equipment suitable for fixed installation and use.
Combustible gas-tight joint width, gap, and roughness are the three key elements of explosion-proof housing design.
Design requirements for the explosion-proof triad vary depending on the different explosive gas environments used in Class I mining, and non-mining Class IIA, IIB, and IIC.
Refer to the design standards of GB/T3836.1 and GB/T3836.2 for specifics.
Zhenuo Inspection has long been dedicated to explosion-proof product design, testing, and certification services.
We have a team in the explosion-proof field, well-versed in explosion-proof standard requirements.
We offer explosion-proof housing design, drafting, modification guidance, certification agency services.
If you have a similar need, feel free to DM Shenzhen ZhongNuo Inspection & Technology Co., Ltd. anytime!

After the explosion-proof CCC certification has replaced the production license, do you still need an explosion-proof qualification certificate?
ZhongNuo Inspection: Since the release in July 2019 regarding market and explosion-proof electrical products, etc.
Following the announcement of the transition from production license to mandatory product certification management implementation requirements,
Many companies producing explosion-proof electrical products have gained a certain understanding of the explosion-proof 3C certification system.
But, does the implementation of the explosion-proof 3C certification system replace the original explosion-proof qualification certificate?
Actually, a careful reading of this announcement reveals that only certain explosion-proof electrical products are included in the scope of mandatory product certification (for details, see the product catalog of mandatory explosion-proof electrical product certification).
There are still a large number of explosion-proof products not included in the market, such as common pressure transmitters, combustible gas detectors, breathing valves, intelligent scanning terminals, dust removal equipment, and mechanical products, etc.
Explosion-proof equipment installed and used in explosive areas, outside of the product catalog, must strictly comply with the requirements of the GB/T3836 series explosion-proof standards and obtain the corresponding explosion-proof qualification certificate.
Explosion-proof 3C Certification Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.