This part of GB/T 16927 specifies the terminology used, general requirements for test procedures and specimens, generation of test voltage and current, test procedures, processing methods for test results, and criteria for determining whether the test is qualified. This section is applicable to the following tests for equipment with a maximum voltage U of 1 kV or above: a) DC voltage insulation test; b) AC voltage insulation test; c) Impulse voltage insulation test; d) Joint and composite tests of above voltages. Note 1. For on-site testing, please refer to GB/T 16927.3. Note 2. To obtain reproducible and effective results, alternative testing procedures may be required. The appropriate test procedure shall be selected by the relevant technical committee. Note 3. For U. Equipment greater than 800 kV may not be able to meet tolerances and uncertainties if certain specified procedures are to be met. 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 Part 1: Definitions, Principles, and Rules (IEC 60071-12006, MOD) GB/T 4585 Artificial Pollution Testing of High Voltage Insulators for AC Systems (IEC 60507; 1991, IDT) GB/T7354 Partial Discharge Measurement (IEC 602702000.1DT) GB/T 11022 Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards (IEC 606941996, EQV) GB/T 16896.1 High Voltage Impulse Measurement Instruments and Software, Part 1: Requirements for Instruments (IEC 61083-1:2001, MOD) GB/T16896.2 High Voltage Impulse Measurement Instruments and Software Part 2: Requirements for Software (IEC 61083-21996, MOD) GB/T16927.2 High Voltage Testing Techniques Part 2: Measurement Systems (IEC 60060-21994, EQV) GB/T 16927.3 High Voltage Testing Techniques Part 3: Definitions and Requirements for Field Testing (IEC 60060-3; 2006, MOD) GB/T 22707 Artificial Pollution Testing of High Voltage Insulators for DC Systems (IEC/TR 612451993, MOD)
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