Shenzhen ZhongNuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal safety certification.
What products can apply for the intrinsically safe explosion-proof certification? What are the requirements?
Bain is one of the many explosion-proof protection types, which employs the restriction of electrical energy, ensuring that even in the event of equipment failure,
A type of explosion-proof protection that the energy produced is not sufficient to ignite the surrounding explosive environment.
Therefore, intrinsic safety imposes restrictions on the electrical parameters of equipment such as current, voltage, capacitance, and inductance.
Only suitable for low-power equipment. Additionally, there are specific requirements for the power supply method, plastic housing, and wireless transmission for intrinsically safe devices.
The product application for intrinsic safety certification requires submission of the product's schematic diagram, PCB layout, and other relevant documents.
ZhongNuo Inspection has dedicated engineers specializing in intrinsically safe circuit and structural design, capable of providing technical consulting services including explosion-proof circuit design, drafting, and modification.
We have extensive design and certification experience for explosion-proof classifications of ia, ib, and ic.
If you require certification in this area, welcome to message Shenzhen ZhongNuo Inspection & Technology Co., Ltd. directly!

What documents are required to apply for the Coal Safety/Mine Safety certification?
(1) Corporate Standards
(2) Product Manual
(3) Product Drawings (circuit diagrams, PCB layouts, schematics, assembly drawings, hydraulic diagrams, location maps, etc.)
(4) Bill of Materials (BOM)
(5) Nameplates, factory certificates, etc.
Samples

What is the Coal Safety Certification Mark?
Coal Mine Mark Certification (abbreviated as MA, KA Certification) is a mandatory certification implemented by the Coal Mine Safety Mark Office for underground coal mine products.
Products listed in the mining product safety certification directory must obtain a certification certificate.
Individuals and entities are prohibited from selling, purchasing, or using mining products included in the safety marking management catalog that have not obtained the safety marking.
The manufacturer of the product must undergo several steps to obtain a safety mark, including filling out an application form, preliminary review and qualification registration, evaluation, and issuance of the certificate.

Coal Mine Safety Sign Certification is a mandatory certification implemented by the Coal Mine Safety Sign Office for items used underground in mines. All products listed in the Coal Mine Product Safety Certification Catalog must obtain a certification certificate.
Products with Coal Safety/Mineral Safety certification can only be marked with MA/KA labels. Individuals and organizations are prohibited from selling, purchasing, or using mineral products included in the safety sign management catalog but not possessing a safety sign.
The manufacturer of the product must undergo several steps to obtain a safety mark, including filling out an application form, preliminary review and qualification registration, evaluation, and issuance of the certificate.
Coal Safety Certification and Mine Safety Certification Consultancy Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.