2025-12-06
To ensure safe power supply, power cables undergo a series of electrical performance tests before leaving the factory, after installation, and during use. Based on the purpose of the test, cable tests can be divided into five categories: type tests, sample tests, routine tests, acceptance tests, and preventive tests.
(1) Type Test: This is a test conducted by the manufacturer before mass production of a new type of cable. This test compares the performance and quality of the new product with existing products, or directly demonstrates that the new product meets the performance requirements for actual operation. It is generally only performed once, unless there are changes in materials, structure, or manufacturing process.
(2) Sample Test: This is a test conducted by the manufacturer on a certain proportion of cables sampled from a batch.
(3) Routine Test: This is a test conducted by the manufacturer on all finished cables to check for problems in the mass production process and to ensure the quality stability of the product.
(4) Acceptance Test: This refers to the test performed on cables after new installation and before commissioning, sometimes also including tests after major or minor repairs.
(5) Preventive Test: This usually refers to periodic maintenance tests performed on cables during operation to promptly detect potential problems and changes in cable performance, preventing accidents or damage to the cables.
