Power cables are cables used to transmit or distribute high-power electrical energy in the power system. With the rapid development of the petrochemical industry worldwide, medium and low voltage extruded insulated power cables have become an important variety of wires and cables due to their simple structure, convenient manufacturing and processing, and convenient construction and maintenance
Squeezed insulated power cables, also known as rubber plastic cables, are power cables insulated with high polymer materials. They are made of copper or aluminum wires twisted into conductors, and then extruded with insulation, (metal tape), (inner lining/isolation sleeve), (armor layer), and sheath layer (if there is a cable forming process, necessary filling materials are added). Commonly used plastics include polyvinyl chloride, polyethylene, and cross-linked polyethylene
Routine testing items for cables:
Conductor resistance, insulation thickness, thinnest point thickness of insulation, sheath thickness, thinnest point thickness of sheath, insulation resistance, insulation resistance at 70 ℃, immersion voltage, overall dimensions, and cable stranding direction at 20 ℃.
What is the testing feeFunction 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