
1 Scope
This standard specifies the technical requirements, test methods, inspection rules, and other contents of composite jacket gapless metal oxide lightning arresters (hereinafter referred to as lightning arresters) with rated voltages of 51kV and below p> This standard is applicable to lightning arresters for limiting overvoltage in AC power systems up to 35kV p>
2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard.
. At the time of publication of the standard, all versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards p> GB 191-1990 Packaging, Storage and Transportation Pictorial SymbolsGB 311.1-1997 Insulation Coordination of High Voltage Transmission and Transformation Equipment (eqv IEC 60071-1:1993) GB
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