Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal safety certification.
Preparation of coal safety and mine safety certification samples -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
The prototype is manufactured according to the design drawings. The project team establishes the inspection outline based on the company's and industry standards. The quality assurance department completes the factory inspection according to the inspection outline. Note: In addition to preparing the prototype, electrical products also require the preparation of electrical components for intrinsic safety testing, such as intrinsic safety power supplies, sensors, etc.; and electrical performance testing components such as contactors, circuit breakers, and isolators, etc.

Do you need a factory audit to apply for the Coal Safety/Miner Safety Mark? -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
Required. Unlike the application for an explosion-proof certificate, the control over mine marking is more stringent.
Application for Coal Mine Safety and Mine Safety Certification requires a factory audit of the applicant company.

Can OEM models apply for the Coal Safety Certification? -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
This year, the Anbang Standards Center has gradually expanded the scope of applicant enterprises, including OEM production model companies in the Anbang Standards application range. This means that companies previously operating under the OEM production model can now apply for the Coal Safety Certification themselves. However, as of now, there is no actual implementation. What kind of issues might arise during actual implementation remains unknown.
For your convenience in filing, please familiarize yourself with the following requirements prior to product application:
Please first select the production address for the declared product. If the production address database does not contain the production address for the declared product, the applicant should choose "Add New Production Address" and then complete the production address information as required.
2. When the declared product is self-produced, the business scope of the applicant's corporate legal person business license should include the declared product; when the application product is produced under the OEM production model, the OEM production factory should be a legal entity, and the business scope of its corporate legal person business license must include the declared product.
3. If the production address is leased, the applicant should pay attention to the validity period of the lease agreement. If the declaration time is less than five years from the termination date of the lease agreement, the validity period of the safety mark will be affected by the validity period of the lease agreement.
4. For OEM-manufactured products, applicants should pay attention to the validity period of the OEM commission agreement. If the declaration time is less than five years from the termination date of the OEM contract, the validity period of the safety mark will be affected by the contract's validity.

In explosive environments, explosion-proof electrical equipment must be used with valid explosion-proof certification; electrical equipment used in coal mine underground must obtain coal safety certification prior to entry, as required by relevant Chinese regulations. This is a stipulation not limited to the coal industry; the petrochemical, metallurgical, and other industrial sectors must also use explosion-proof electrical equipment to ensure production safety and prevent explosion accidents.
The current safety production situation in our country remains severe, with explosions occurring frequently. It is urgent to strengthen safety production efforts across all industrial sectors. For coal mining enterprises, selecting reliable explosion-proof equipment is one effective means to effectively prevent explosion accidents.
Coal Safety Certification and Mine Safety Certification Consultancy Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.