How to identify electronic wire about cross-sectional area is UL standard ?
Non-standard electronic wire refers to cables and wires for specific purposes that do not belong to the specifications and performance specified in national standards.
However, it should also meet general requirements in terms of safety and quality performance . The national standard wire is the wire produced in full accordance with the national standard. General household, common wires are standard specifications performance, national standard wires . For example, the national standard specifies the performance of seven common specifications, and will also specify general requirements, but special manufacturers need seven other kinds of non-standard. Wires are 3C and UL products, that is, subject to mandatory standards. Similar to non-standard parts.
At present, the most common cable national standard is GB 5023.1, GB 5023.2, GB 5023.3, GB 5023.4 series standards, that is, "rated voltage 450/750V and below polyvinyl chloride insulated cable" series standards. And JB 8734 "Rated voltage 450/750V and below polyvinyl chloride insulated cable wire and flexible wire" series of standards. In addition, there are: GB 9330 GB/T 12706 series, high voltage is mainly GB 12527, GB 14049. Know the standard number can Baidu specific standards, I don't have to play out one by one. In addition: the national standard wire must be printed: quality system certification number; See whether the certificate is standard; See whether there is a factory name, factory address, inspection seal, production date ; See if the wire is printed with trademarks, specifications, voltage, etc. Also look at the cross section of the wire copper core, excellent copper color bright, soft color, otherwise it is defective.
