What is the difference between cable KVV and VV?
KVV: PVC insulated jacketed control cable, laid in the room, cable trench, pipe and underground VV: PVC insulated jacketed power cable, laying in the room, tunnels and pipes, the cable can not withstand mechanical external force
Differences: Making materials Different RVS wire making materials are polyvinyl chloride. RYS wire production materials are polyolefins. Introduction: PVC, English referred to as PVC (Polyvinylchloride), is vinyl chloride monomer (vinyl chloride) (VCM) in the peroxide, azo compounds and other initiator; or in the light and heat under the action of free radical polymerization polymerization From the polymer. Vinyl chloride homopolymer and vinyl chloride copolymer collectively referred to as vinyl chloride resin. Polyolefin: Olefin polymer. Α-olefins such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene and 4-methyl-1-pentene, and certain cyclic olefins The general name of a class of thermoplastic resin
RVS is copper core PVC insulated twisted pair RYS is insulated twisted phone line
The former is polyvinyl chloride insulation, which is polyolefin insulation, the former is more common, the latter is generally low smoke and halogen, more expensive. Are twisted pair, similar use, but the use of occasions on the flame retardant, environmental protection and other requirements are different. Can be used as a telephone line. But the general model of telephone line is HBYV, affordable.
