Scope
This standard is applicable to varistors with symmetrical voltage current characteristics used in electronic equipment This standard specifies the standard terms, inspection procedures, and test methods used in the sub specifications and detailed specifications applicable to the identification, approval, and quality assessment system of electronic components
Relevant Documents (Part)
GB/T 2691-1994 Marking Codes for Resistors and Capacitors (idt IEC 62; 1974)
GB/T 2471-1995 Preferred Number System for Resistors and Capacitors (idt IEC 63:1963)
IEC 27-11971 Textual Symbols for Electrical Technology; Part 1: General Symbols
IEC 50 International Electrotechnical Vocabulary Index (I.E.v)
IEC 60-21973 High Voltage Testing Techniques Part 2; Test Procedure
IEC 68 Basic Environmental Testing Regulations for Electrical and Electronic Products
IEC 68-1; 1982 General Provisions
IEC 68-2-1; 1974 Test A; Low temperature test method
IEC 68-2-1A; 1976 First supplement
IEC 68-2-2; 1974 Test B; High temperature test method
IEC 68-2A; 1976 First supplement
IEC 68-2-31969 test Ca; Steady state damp heat test method
IEC 68-2-6; 1970 Test Fc: Vibration (Sinusoidal) Test Method
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