This part of the scope GB/T 38659 provides an overview of electromagnetic compatibility (EMC) risk assessment for electronic and electrical equipment, including its purpose, mechanism, and model, degree of impact and risk classification of risk elements, division of product risk assessment units, EMC risk assessment procedures, EMC risk identification, EMC risk analysis, EMC risk assessment, determination of overall EMC risk level and application of results, and requirements for risk assessment reports. This section is applicable to the electromagnetic compatibility risk assessment of electronic and electrical equipment. This section provides guidance for the risk assessment of electromagnetic compatibility design of products based on factors such as mechanical architecture design, circuit board design, and application site type. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 4365 Electrotechnical Terminology Electromagnetic Compatibility GB4943.1-2011 Information Technology Equipment Safety Part 1: General Requirements GB/T 6113.201-2018 Specification for Radio Disturbance and Immunity Measurement Equipment and Methods: Part 2-1: Radio Disturbance and Immunity Measurement Methods Conducted Disturbance Measurement GB/Z18039.1-2019 Electromagnetic Compatibility Environment Description and Classification of Electromagnetic Environment GB/T 18655-2018 Vehicles, Ships and internal combustion engines, radio disturbance characteristics, limits and measurement methods for protecting on-board receivers GB/T 23694 Risk Management Terminology GB/Z37150 Electromagnetic Compatibility Reliability Risk Assessment Guidelines 3 Terms and Definitions GB/T 4365, GB/T 23694 and GB/Z37150 definitions, as well as the following terms and definitions, apply to this document. 3.1 Electromagnetic Compatibility Risk The probability of a product experiencing electromagnetic compatibility issues due to design is the probability of failing electromagnetic compatibility testing in a testing environment. 3.2 Risk assessment value is a quantity obtained through qualitative and quantitative methods to express the magnitude of risk, usually between 0 and 100. 3.3 Electronic and Electrical Equipment: Equipment manufactured using electronic technology that relies on current or electromagnetic fields for normal operation, as well as equipment that can generate, transmit, and measure current and electromagnetic fields. Note 1: The designed AC voltage of these devices does not exceed 1000 V and DC voltage does not exceed 1500 V. Note 2: According to CISPR product classification, the following devices belong to electronic and electrical equipment: engineering medical equipment, multimedia equipment, household electrical equipment, automotive electronic components, etc
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China