Shenzhen ZhongNuo Testing Technology Co., Ltd. specializes in explosion-proof CCC certification consulting services, boasting a wealth 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 can provide consulting services such as application assistance and factory audit guidance for clients.
Electrical equipment used in explosive gas environments requiring a防爆CCC certification standard application
Ex-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: Explosion-proof
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 an intrinsic safety “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/T 36.3-2021 Explosive Atmospheres Part 3: Equipment protected by increased safety "e"
Exlosion-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 enclosures “p”
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 environments
Exlosion-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: Sand-filled "q" Type
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
Exlosion-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 "m" type enclosures

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 most explosion-proof electrical equipment. However, some explosion-proof equipment, such as large-scale system equipment and explosion-proof lighting, are not listed. They still need to apply for an explosion-proof certification as before and obtain the certification before they can be used in explosive hazardous areas.

How to Apply for a防爆CCC Certification for a Company?
1. Self-Application: The company applies directly to the certification body, prepares relevant documents independently, assists in debugging the prototype, and modifies any irregularities in the documents. The process is relatively longer and more expensive, requiring more time and effort.
2. Agent Application: The application involves the entire consultation and application process by specialized explosion-proof electrical technology consulting agencies (e.g., Shenzhen ZhongNuo Testing Technology Co., Ltd.), including material revisions, prototype debugging, and progress coordination. The progress is well-guaranteed. Quick certification, manageable overall costs, and saves time and effort.

Basic Content of Factory Audit for Explosion-Proof CCC Certification:
A. Factory inspection conclusions are typically categorized into four types: "Factory Inspection Passed," "Written Verification Passed," "On-Site Verification Passed," and "Factory Inspection Failed."
"Written Verification Passed" indicates that there are non-conformities, the factory has taken corrective actions within the specified time frame, and the certification body has verified the written correction effectively, thus the factory passes the inspection; "On-site Verification Passed" refers to the existence of non-conformities, where the factory has taken corrective measures within the designated time, and the certification body has verified the on-site correction effectively, leading to the factory passing the inspection.
B. Factory audits require整改 to be completed within 40 days if any non-conformities are identified.
C. Basic Review Items
(1) Specify if the test results are satisfactory.
(2) Are the key resources adequate to ensure product consistency or compliance with standards?
(3) Product consistency issues, such as changes in product structure and key components, are they in compliance with regulatory requirements?
(4) Determine if the certified products have defects that could lead to quality safety accidents.
(5) Is the effective implementation of changes to certified products and consistency control in place?
(6) Has the factory taken corrective actions during the certification certificate suspension period?
(7) Proper use of the CCC mark or certificate, including counterfeiting, renting, lending, misusing, buying, selling, transferring the CCC mark or certificate, or using the CCC mark fraudulently; Continuing to use the CCC mark or certificate after being notified of its revocation or suspension; Deliberately applying the CCC mark to products without obtaining a CCC certificate; Other intentional illegal uses of the CCC mark or certificate;
(8) Does the factory have any instances of obtaining certification certificates through deceit, bribery, or other improper means?
(9) Are there any other situations that directly threaten product consistency or compliance with standards?
Consulting Services for Explosion-proof 3C Certification – Shenzhen Zhongnuo Inspection Technology Co., Ltd.