This section applies to control and protection switchgear (CPS) connected to the main contact circuit with a rated voltage not exceeding 1000 V AC or 1500 V DC. CPS is used to provide protection and control functions for circuits, which can be operated manually or in other ways (such as automatic control, remote control, etc.). They can also achieve additional functions, such as isolation. The digital input and/or digital output compatible with PLC in CPS should meet the requirements of GB/T 15969.2-1995. The purpose of this section is to specify: - the characteristics of CPS; --- The conditions that CPS should meet in terms of operational performance, dielectric performance, and enclosure protection level (when equipped with an enclosure); - the tests used to verify compliance with these conditions and the test methods used; - - the information marked on the product or provided by the manufacturer
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