1.CM fire rating
CM is currently the most commonly used flame retardant level for cable cable. Its test standard is UL 1581. According to the definition, a small bundle of Cm-class cable cable will...
1.Aging causes of wires and cables: external damage.According to the operation analysis in recent years, quite a lot of cable faults are caused by mechanical damage.For example: wire and cable inst...
1. Check the certification mark.Products that have obtained compulsory certification shall be marked with the certification mark, namely “CCC” mark, otherwise, they shall be regarded as...
