1. Observe all components of the secondary circuit, whether it is the AC secondary circuit or the voltage secondary circuit, and check the correctness of the circuit wiring. At the same time, after completing the preliminary construction of the secondary circuit, the installation personnel will also observe, clean, and inspect and repair all components of the secondary circuit, such as checking whether the position indicator relay, central signal device, and the middle terminal strip of these components meet the wiring requirements. 2. Use the continuity method to test all intermediate terminal blocks. During the secondary circuit inspection of the substation, the continuity method will also be used to test all intermediate terminal blocks. For example, check whether the secondary wiring of outdoor terminal boxes such as operation screens, fault recording screens, and isolation switches is correct. In addition, check the cable labels, cable labels, and the consistency of the cable cores with the positions indicated on the drawings. 3. Check the conformity of all secondary cables with the drawings. According to numerous sharing, the secondary circuit inspection of the substation should also focus on confirming the conformity of the secondary cables with the drawings. For example, the reliability of terminal strip lead screw crimping, whether there is any bare or poor contact of wire insulation, and in addition, it is necessary to check whether the connection tightness of the rear panel wiring of the device is good
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