Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in explosion-proof CCC certification consulting services, boasting a wealth of consulting cases in this area. We are well-versed in the application process and technical requirements for explosion-proof 3C certification, and can provide clients with consulting services such as application assistance and factory audit guidance.
Electrical equipment used in explosive gas environments - Application standards for防爆CCC certification
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"
Explosion-proof Type: Intrinsic Safety Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.2-2021 Explosive Atmospheres, Part 2: Equipment protected by a flameproof "d" enclosure
Ex-proof Type: Increased Safety Type
Applicable Explosion-Proof Standards:
GB/T 3836.1-2021 Explosive Atmospheres, Part 1: Equipment, General Requirements
GB/T36.3-2021 Explosive Atmospheres Part 3: Equipment protected by increased safety "e"
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 an “p” pressure housing
Explosion-proof Type: Immersed Oil Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.6-2017 Part 6: Equipment protected by liquid immersion type “o” for explosive atmospheres
Explosion-proof Type: Sand-filled
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.7-2017 Electrical equipment for explosive gas atmospheres — Part 7: Type "q" sand-filled apparatus
Explosion-proof Type: "N" Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.8-2021 Explosive Atmospheres Part 8: Equipment protected by "n" type protection
Explosion-proof Type: Cast Sealed 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 "m" type encapsulation

Explosion-proof electrical 3C certified products include:
Explosion-proof motor
Explosion-proof electric pump
Explosion-proof distribution equipment products
Explosion-proof switches, control, and protection products.
Explosion-proof starters
Explosion-proof transformers and related products
Explosion-proof electric actuators, solenoid valve products
Explosion-proof plug-in device
Explosion-proof surveillance products
Explosion-proof communication and signaling equipment
Explosion-proof air conditioners, ventilation equipment.
Explosion-proof electric heating products
Explosion-proof accessories, Ex components.
Explosion-proof instruments and meters
Explosion-proof sensors
Safety fence products
Explosion-proof instrument cabinets and related products.
Explosion-proof lighting fixtures and control devices.

What standards are used for explosion-proof certification? What are the technical requirements?
An explosion-proof type is a type of explosion-proofing for electrical equipment.
Its housing can withstand explosive mixtures entering the housing through the housing joint surfaces or structural gaps, and explode internally without damaging the housing.
And cause ignition of an explosive gas atmosphere formed by one or more gases or vapors.
The explosion-proof housing must have both explosion-proof and anti-explosion properties. Generally, the outer casings of explosion-proof products tend to be rather heavy.
Products and equipment suitable for fixed installation and use.
Explosion-proof interface width, gap, and roughness are the three key elements of explosion-proof housing design.
Design requirements for explosion-proof three elements vary depending on 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.
ZhongNuo 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, illustration, modification guidance, and certification agency services.
If you have a need for this as well, feel free to consult Shenzhen Zhongnuo Testing Technology Co., Ltd. at any time!

How to obtain certification for explosion-proof electrical products not listed in the CCC explosion-proof product catalog?
ZhongNuo Inspection: Currently, the product catalog only includes the majority of explosion-proof electrical equipment, but there are still some explosion-proof electrical devices not included.
For example, large-scale system equipment, transmitters, pressure sensors, level indicators, flammable gas detectors, flowmeters, and the like are not included in the product catalog.
You still need to apply for the explosion-proof certification as before, and obtain the explosion-proof certification before using it in explosive hazardous areas.
Explosion-proof 3C Certification Business Consultation Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.