This standard specifies the basic safety requirements, management measures, technical measures, work procedures, and safety requirements for the preparation of high-voltage testing rooms. This standard is applicable to high-voltage testing rooms (including high-voltage testing halls and high-voltage outdoor testing grounds) and their staff. It is also applicable to on-site high-voltage testing of substations and power plants that form test areas according to the requirements of this standard. 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 311.1 Insulation Coordination of High Voltage Transmission and Transformation Equipment GB 2900.19 Electrotechnical Terminology High Voltage Testing Techniques and Insulation Coordination GB/T 16927.1 High Voltage Testing Techniques Part 1: General Test Requirements 3 Terms and Definitions GB/T 2900.19 defines and the following terms and definitions apply to this document. 3.1 High voltage laboratory is a laboratory that uses power frequency, direct current, and impulse voltages above 1000 V to conduct various electrical characteristic tests on electrical equipment, insulation materials (components), air gaps, etc. (including high-voltage testing halls and high-voltage outdoor testing grounds). 3.2 Clearance The air distance between two live parts, or between live parts and ground (or grounded objects). 3.3 Minimum clearance The minimum clearance between live parts in air or between live parts and ground. 3.4 Working clearance: The minimum safe distance between live parts and workers or the effective safe length of live operating tools
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