PVC insulated cable and wire products are divided into unsheathed cables for fixed wiring, sheathed cables for fixed wiring, lightweight unsheathed flexible cables, general purpose sheathed flexible cables, installation and shielded wires, special purpose sheathed flexible cables, PVC insulated flame retardant/fire resistant cables, and other products. The wire and cable industry is an important supporting industry for China's economic construction, widely used in various fields of the national economy, accounting for 1/4 of China's electrical industry, and is the second largest industry in the mechanical industry after the automotive industry. Among them, the wires used for indoor decoration are mainly PVC insulated cables with a rated voltage of 450/750V and below, also known as cloth wires. The assessment of wire quality is mainly conducted by professional inspection institutions, and the main technical indicators in the report are as follows: 1. Conductor DC resistance. Directly reflecting the current carrying capacity of the wire, which is commonly referred to as how much load it can carry. This indicator is related to the conductor material, conductor cross-sectional area (wire specification), which is also the wire diameter. 2. Finished product withstand voltage test. The main assessment is whether there is leakage in the external insulation of the wire. This indicator is related to the insulation material and manufacturing process. 3. Insulation (sheath) thickness and mechanical properties. Mainly assess the service life and environment of the wires. If the insulation thickness is too thin or deviated from the core, it is easy to cause damage in the thin position during installation or use, resulting in leakage. Wires using inferior insulation materials have a short service life
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