This standard specifies the basic test methods for relay protection and safety automatic devices. This standard applies to the testing of products such as with or without relays, measuring relays, protection devices, safety automatic devices (protection devices and safety automatic devices hereinafter referred to as devices) and their interface devices used in the secondary circuit of power systems. 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/T 2422 Guidelines for the Compilation of Environmental Testing Methods - Terminology and Definitions - GB/T 2423.1-2008 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test A: Low Temperature GB/T 2423.2-2008 Environmental Testing for Electrical and Electronic Products - Part 2: Test B: High Temperature GB/T 2423.3-2006 Environmental Testing for Electrical and Electronic Products - Part 2; Test Method Test Cab: Constant Damp Heat Test GB/T 2423.4-2008 Environmental Testing for Electrical and Electronic Products - Part 2: Test Method - Test Db; Alternating Damp Heat (12 h to 12 h Cycle) GB/T 2423.21-2008 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test M; Low Pressure GB/T 2423.22-2012 Environmental Testing Part 2: Test Methods, Test N; Temperature changes GB/T 2900.1 Electrical terminology Basic terminology GB/T 2900.17 Electrical terminology Measurement relays GB/T 2900.49 Electrical terminology Power system protection GB4208-2008 Degrees of protection (IP code) GB/T 4365 Electrical terminology Electromagnetic compatibility GB 4824 Industrial Disturbance Characteristics, Limits, and Measurement Methods for Scientific and Medical (ISM) Radio Frequency Equipment GB/T 5169.16-2008 Fire Hazard Testing for Electrical and Electronic Products: Part 16: Test Flame 50W Horizontal and Vertical Flame Test Methods GB 9254 Radio Disturbance Limits and Measurement Methods for Information Technology Equipment GB/T 11287-2000 Electrical Relays Part 21: Vibration of Measuring Relays and Protective Devices, Impact, collision, and seismic tests - Part 1: Vibration tests (sinusoidal) GB/T 12113-2003 Measurement methods for contact current and protective conductor current GB/T 13729-2002 Telecontrol terminal equipment GB/T 145371993 Measurement relays and protective devices - Impact and collision tests GB/T 14598.2-2011 Measurement relays and protective devices - Part 1: General requirements GB/T 14598.26-2015 Measurement relays and protective devices - Part 26: Electromagnetic compatibility requirements
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