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1、 Preparation of Materials for Applying for Coal Safety Certification

1. Enterprise standards

2. Product manual

3. List of Controlled Components

4. List of Main Components

5. Product technical documentation (such as schematics, assembly drawings, PCB diagrams, hydraulic diagrams, etc.)
Note: 1. The format for writing enterprise standards should comply with GB/T1.1-2002 "Guidelines for Standardization Work Part 1: Structure and Writing Rules of Standards"; GB/T1.2-2002 "Guidelines for Standardization Work Part 2: Methods for Determining the Content of Normative Technical Elements in Standards".

2. The format of the product manual should comply with GB9969.1-1998 "General Principles for Industrial Product Manual"
2、 Preparation of samples

The manufacturing department completes the prototype manufacturing according to the design drawings, the project team develops the factory inspection outline based on enterprise standards and industry standards, and the quality assurance department completes the factory inspection according to the factory inspection outline.
Note: In addition to preparing prototypes, electrical products also need to prepare electrical components for intrinsic safety testing, such as intrinsic safety power supplies, sensors, etc; Electrical components used for electrical performance testing, such as contactors, circuit breakers, isolating switches, etc.

 3、 Declaration principle

1. Simultaneously declare similar products

2. Multiple products for common use, one coal safety component

3. Advance declaration of electrical equipment and complete machine

4. Product molding and re declaration

Service Hotline: 18924609560 (same WeChat account)