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.
What products can apply for the intrinsically safe explosion-proof certification? What are the requirements?
"Benan is one type of explosion-proof protection, which limits electrical energy so that the equipment can still function even in the event of a fault."
A type of explosion-proof protection that the energy produced is not sufficient to ignite the surrounding explosive environment.
Therefore, intrinsically safe types have limitations on electrical equipment's current, voltage, capacitance, inductance, etc., and are only suitable for low-power equipment.
Additionally, there are clear requirements for the power supply method to the intrinsically safe equipment, plastic housing, and wireless transmission.
The product application for intrinsic safety certification requires the submission of the product's schematic, PCB diagram, and so on.
ZhongNuo Inspection has dedicated engineers specializing in intrinsic safety circuit and structural design, offering technical consulting services for explosion-proof circuit design, drafting, and modifications.
We have extensive design and certification experience for explosion-proof ratings of Class IA, IB, and IC.
If you require certifications in this area, welcome to DM Shenzhen ZhongNuo Testing Technology Co., Ltd.!

Basic Process and Agencies for Coal Safety Certification
Coal Mine Safety Certification is a mandatory safety certification for equipment and products used underground in coal mines.
Adopt the "product testing + factory audit" approach.
We must conduct both product testing and on-site audits and annual supervisory assessments of the manufacturing facilities for the products applied for, which is commonly referred to as factory auditing.
Product testing requires compliance with coal safety standards, such as electrical products needing to meet explosion-proof requirements in coal mine gas environments.
Further, meet product performance requirements.
Factory audits primarily focus on the ISO9001 production quality system.
Further, combine the requirements of the Mine Products Safety Signage Implementation Rules for factory evaluation.
The Anbang Center is the issuing and inquiry body for the Coal Safety Certification.
Shenzhen ZhongNuo Inspection offers coal safety certification and mine safety consulting services, well-versed in the entire certification process and requirements.
Some explosion-proof technology engineering teams and factory inspection specialists are available to assist companies in conveniently and quickly applying for the Coal Safety Certification.
Our successful case studies include lightboxes, remote controls, fiber optic temperature measurement devices, sensors, air compressors, mobile phones, thermal imaging cameras, and patrol robots.
If you have any needs in this regard, feel free to DM us for further discussion at any time!

Classification of Explosion-proof Certification -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
Electrical equipment for explosive gas atmospheres:
Explosion-proof type d
(2) Intrinsically Safe Type e
Type 4 "i" explosion-proof
(4) Positive Pressure Type P
(5) Immersion-Type
(S6) Sand-filled type q
(7) Cast-in-place
(N) Type
2. Electrical Equipment for Combustible Dust Environments
Dust-Proof Ignition-Resistant Housing
(2) Positive Pressure Type
(3) Intrinsically Safe
Sealed Casting
3. Explosion-proof Type S
4. Composite:防爆型式 that combines two or more of the above-mentioned types.

What test items are required to apply for an explosion-proof certification?
Explosive-proof products require passing relevant test requirements of the explosive-proof standards to obtain the explosive-proof certification.
Different explosion-proof types, catering to equipment used in various explosive environments, require different explosion-proof testing items.
Many clients also want to know what specific testing projects are required for explosion-proof products? What are the specific requirements for the explosion-proof design of the product?
Below, Zhongnuo Inspection will list some common explosion-proof testing projects.
For example, safety-certified products typically include tests such as appearance and structure inspection, spark ignition test, dielectric strength, battery and battery pack testing, temperature rise test, transient energy test, and more.
Main test items for explosion-proof products include heat and cold resistance tests, internal ignition without propagation of explosion, shell pressure resistance, IP testing, temperature rise tests, etc.
Different test items, tailored to various modules or components of the product, each test item ensures that the product meets the explosion-proof standards and achieves the required explosion-proof performance.
If a company is designing explosion-proof products and is not familiar with the explosion-proof standards requirements,
ZhongNuo Inspection can provide guidance services for explosion-proof circuit design and explosion-proof structural design, including explosion-proof standard requirements, design key points, drawing guidance, etc.
We also offer agency services for explosion-proof testing and certification.
Need this service? Feel free to DM Shenzhen ZhongNuo Inspection Technology Co., Ltd. anytime!
Explosion Proof Certification Application Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.