Guide to Applying for Explosion-Proof Certification for Telemetry Terminal Units

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 a one-stop explosion-proof technology consulting service.
How to Apply for Explosion-Proof Certification for Enterprises:
1. Self-Application: The company applies to the certification body independently, prepares relevant documents on its own, assists in debugging the prototype, and modifies any irregularities in the documents. The process is relatively longer, with higher overall costs and requires more time and effort.
2. Agent Application: It refers to the entire process of consultation and application with Shenzhen ZhongNuo Testing Technology Co., Ltd., including material revisions, prototype debugging, and progress coordination, all handled by the consulting agency, ensuring a good progress guarantee. Fast certificate acquisition, controllable comprehensive costs, and time and effort saved.

CE certification is a mandatory certification in the EU market, and all equipment and products entering the EU market must pass the relevant CE directive certification.
For example, there are EMC directives, LVD directives, MD directives, ATEX directives, etc., with different product categories requiring different certification directives.
ATEX directive is specifically for explosion-proof equipment and products, which means ATEX certification is akin to the CE certification for explosion-proof products.
Each directive has different applicable standards; the ATEX directive applies to the EN60079 series.
Different explosion-proof types are applicable to various standard series, such as EN 60079.1 for flameproof, EN 60079.7 for increased safety, and EN 60079.11 for intrinsic safety, etc.
Learn more about ATEX certification, and feel free to private message Shenzhen ZhongNuo Inspection Technology Co., Ltd. at any time!

What test items are included in the explosion-proof certificate, and what are the requirements?
Explosion-proof is one of the most commonly used explosion-proof types for market explosion-proof products, adhering to the standards GB/T 3836.1 and GB/T 3836.2.
The explosion-proofing is primarily achieved through the protection of the explosion-proof housing.
The explosion-proof housing must have sufficient thickness and strength; even if an explosion occurs inside the equipment, the flame will be extinguished due to the width, gap, and roughness of the housing's joint surfaces, preventing ignition of the external hazardous environment.
On the other hand, even in the event of an explosion in a hazardous location outside, the explosion-proof housing maintains its anti-explosion performance.
In summary, the housing is both blast-proof and blast-resistant, which results in the equipment being somewhat bulky.
ZhongNuo Inspection has been deeply involved in the explosion-proof field for many years, well-versed in the requirements of the GB/T 3836 series standards.
Extensive experience in the design and modification guidance for explosion-proof products. Offer services including explosion-proof housing design, drafting, certification, and drawing preparation.
If you have a certification need for this, remember to DM us!

Explosive-proof certification standards for combustible dust environments:
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"
GB/T 3836.5-2021 Explosive Atmospheres, Part 5: Equipment protected by positive pressure enclosure “p”
GB/T 3836.9-2021 Explosive Atmospheres Part 9: Equipment protected by encasing of type “m”
GB/T 3836.31-2021 Explosive Atmospheres, Part 31: Equipment protected by dust ignition-proof enclosures "t"
Explosion-proof Certification Application Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.