This standard specifies the technical requirements for the handover and acceptance of AC equipment and facilities with voltage levels of 50kV and below for new construction, renovation, and expansion by production and operation units. The acceptance work carried out by production and operation units shall be carried out in accordance with this standard. This standard is applicable to the on-site and handover testing and acceptance of primary AC equipment and facilities for the construction, renovation and expansion projects of 500kV and below voltage levels in China Southern Power Grid. AC equipment in converter stations can refer to the requirements of this regulation. Relay protection, automation, telecontrol, communication, measurement, high-voltage DC equipment, online monitoring devices, etc. shall be implemented in accordance with the current relevant standards. 2 Normative References: The clauses in the following documents become 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 using this standard are encouraged to explore the use of the latest versions of these documents. For undated references, the latest version applies to this standard. GB 261 Determination of Flash Point by Pensky-Marten Closed Cup Method GB/T264 Determination of Acid Value of Petroleum Products GB/T311.1~6 Insulation Coordination GB/T507 Determination of Breakdown Voltage of Insulating Oils GB/T 511 Determination of Mechanical Impurities in Petroleum and Petroleum Products and Additives GB/T1001.1~2 Insulators for Overhead Lines with a Nominal Voltage Above 1000V GB/T1094.1~. 12 Power Transformers G1984 High Voltage AC Circuit Breakers GB1985 High Voltage AC Isolation and Grounding Switches GB/T2314 General Techniques for Power Hardware Technical conditions GB/T4787 Voltage equalizing capacitors for high-voltage AC circuit breakers GB/T 5654 Relative capacitance of liquid insulation materials Measurement of dielectric loss factor and DC resistivity GB/T7252 Guidelines for analysis and judgment of dissolved gases in transformer oil GB/T7354 Partial discharge measurement GB/T7595 Quality of transformer oil in operation GB/T 7598 Determination of water-soluble acid in transformer oil in operation GB/T 7600 Determination of moisture content in transformer oil and turbine oil in operation (Coulomb method) GB/T 7601 Determination of moisture in transformer oil and turbine oil in operation (Gas chromatography 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