This standard specifies the categories, general requirements, quality appraisal rules, test methods, and documents to be submitted for Class 1E cables used in nuclear power plants. This standard applies to IE grade cables and wires used in nuclear power plants, and also applies to cables and wires inside 1E grade equipment in nuclear power plants. Class 1E cables used in nuclear power plants include power cables, control cables, communication cables, instrument cables, thermal compensation cables, and other types. The operating conditions and functional characteristics of various cables vary, and the special requirements for Class 1E cables in nuclear power plants related to cable types are specified in subsequent product standards. This standard only specifies the general requirements and the most basic Class 1E quality identification requirements for Class 1E cables used in nuclear power plants. 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 to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB/T 2900.10-2001 Electrotechnical Terminology - Cable (idt IEC 60050-461; 1984) GB/T 11026.1-2003 Electrical Insulation Materials - Heat Resistance - Part 1: Evaluation of Aging Procedures and Test Results (IEC 60216-1:2001, IDT) GB/T 11026.2-2000- Guidelines for Determining the Heat Resistance of Electrical Insulation Materials - Part 2: Selection of Test Judgment Standards (idt IEC 60216-2:1990) GB/T 11026.4-1999- Guidelines for Determining the Heat Resistance of Electrical Insulation Materials - Part 4: Aging Oven - Single Chamber Oven (idtIEC 60216-4-1: 1990) GB/T12666.1-2008 Single wire and cable combustion test method: Part 1: Vertical combustion test GB/T 12727-2002 Quality evaluation of electrical equipment for safety systems in nuclear power plants (IEC 60780; 1998, MOD) GB/T 18380.12-2008 Combustion test of cables and optical cables under flame conditions Part 12: Single insulated wire and cable flame vertical spread test 1kW premixed flame test method (IEC 60332-1-2:2004, IDT)
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