List of relevant testing items of 100 inspectionsThird-party testing institutions support sample sending and door-to-door testing, mainly providing sample testing services for companies, enterprises, public institutions, individual businesses, and university scientific research, and reporting CMA/CNAS/CAL qualifications, which are true and effective.
Report qualification: CNAS, CMA, CAL, etc.
Testing costs: according to customer needs and experimental complexity, quotation
sample size: according to the samplesize to choose the sample or door-to-door
display style: electronic version
Testing cycle: 3-15 working days (expedited).
According to voltage level, it can be divided into medium and low voltage power cables (35 kV and below), high voltage cables (110 kV and above), ultra-high voltage cables (275-800 kV), and ultra-high voltage cables (1000 kV and above). In addition, it can also be divided into AC cables and DC cables according to the current system. According to insulation materials, 1. Oil immersed paper insulated power cables are power cables that use oil immersed paper as insulation. Its application history is the longest. It is safe and reliable, with a long service life and low price. The main drawback is that the laying is limited by the drop. Since the development of non drip impregnated paper insulation, the problem of drop limitation has been solved, allowing oil impregnated paper insulated cables to continue to be widely used. 2. The insulation layer of plastic insulated power cables is extruded plastic power cables. Commonly used plastics include polyvinyl chloride, polyethylene, and cross-linked polyethylene. Plastic cables have a simple structure, convenient manufacturing and processing, light weight, convenient laying and installation, and are not limited by laying height. Therefore, it is widely used as medium and low voltage cables and has a trend of replacing adhesive impregnated oil-paper cables. Its biggest drawback is the presence of dendritic breakdown, which limits its use at higher voltages. 3. The insulation layer of rubber insulated power cables is made of rubber and various additives, which are thoroughly mixed and extruded onto the conductive wire core, and then heated and vulcanized. It is soft and elastic, suitable for occasions with frequent movement and small bending radius during laying. Commonly used insulation materials include natural rubber styrene butadiene rubber mixture, ethylene propylene rubber, butyl rubber, etc. Classified by voltage level: 1. Low voltage cables: suitable for fixed installation on transmission and distribution lines with AC 50Hz and rated voltage of 3kV and below for power transmission. 2. Medium and low voltage cables: (generally referring to 35KV and below): PVC insulated cables, polyethylene insulated cables, cross-linked polyethylene insulated cables, etc. 3. High voltage cables: (generally 110KV and above): polyethylene cables and cross-linked polyethylene insulated cables, etc. 4. Ultra high voltage cable: (275-800 kV). 5. Ultra high voltage cables: (1000 kV and above)
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 problems100% inspection 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 Chinarole of the test report:
1. Project bidding: issue an 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: issue a test report with legal effect to make consumers more assured;
4. Papers and scientific research: provide professional personalized testing needs;
5. Judicial services: provide scientific, fair and accurate testing data;
6. Diagnosis of industrial problems: verification and correction of problems in industrial production;