This standard specifies the design, manufacturing, selection, use, and maintenance of portable grounding and grounding short-circuit devices for live working. This standard is applicable to AC power transmission and distribution systems and electrical equipment that have been cut off, as well as portable grounding and grounding short-circuit devices installed on insulated overhead ground wires of 220kV~500kV transmission lines, as well as temporary short-circuit grounding in the laboratory and testing equipment. This standard does not apply to portable grounding and grounding short-circuit devices used on DC high-voltage transmission equipment 2 Normative References: The clauses in the following documents become the clauses of this standard through reference in this standard. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB 13398 Hollow Insulating Tubes, foam Filled Insulating Tubes and Solid Insulating Rods for Live Working (eqv IEC 60855: 1985, IEC61235: 1993) GB/T 14286 Terminology of Live Working Tools and Equipment (eqv IEC 60743: 2001) GB/T 16927.1 High voltage Test Techniques Part 1: General Test Requirements (eqv IEC 60060-1: 1989)
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