The quality of wire and cable products is highly valued in the project, and testing is generally required before entering the site for use. Products with substandard quality will cause serious accidents. China Steel National Inspection recently received a batch of wires and cables for testing related to fire resistance and flame retardancy. Detection basis:; 1. GB/T 12706.1-2020&Nbsp; 2. GB/T 18380.12-2008; 3. GB/T 18380.13-2008&Nbsp; 4. GB/T19216.21-2003; 5. GB/T 2951.11-2008; 6. GB/T 2951.12-2008. Judgment basis: GB/T 12706.1-2020 "Power cables with extruded insulation and accessories for rated voltages from 1 kV (Um=1.2 kV) to 35 kV (Um=40.5 kV) - Part 1: Cables with rated voltages of 1 kV (Um=1.2 kV) and 3 kV (Um=3.6 kV)" GB/T19666-2019 "General rules for flame retardant and fire-resistant wires and cables or optical cables" Test items: 1. Fire resistance, 2. Conductor resistance, 3. Voltage test, 4. Sheath thickness, 5. Insulation resistance, 6. Single flame retardant performance: Carbonization distance, 7. Single flame retardant performance: combustion droplets, 8. Tensile strength before aging: sheath, 9. Tensile strength before aging: insulation, 10. Elongation at break before aging: sheath, 11. Elongation at break before aging: insulation, 12. Change rate of tensile strength after air oven aging: insulation, 13. Change rate of tensile strength after air oven aging: sheath, 14. Change rate of elongation at break after air oven aging: insulation, 15. Change rate of elongation at break after air oven aging: sheath
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