简要说明：天联牌的RVV4 1.0产品：估价：12，规格：RVV4 1.0，产品系列编号：齐全

　　

Tianjin Cable General Factory first branch factory, founded in 1971, the enterprise has more than 300 workers, engineering and technical personnel more than 30 people, the factory covers an area of 2000 square meters, with 15000000 yuan in fixed assets, enterprises have the production and testing equipment more than 120 Taiwan (number of pieces), the annual output value of 150000000 yuan. Over the years, I plant products used in the dozens of coal industry group and mines, gained high praise and evaluation. Enterprises with "integrity-based, customer first, quality first" for the purpose, passion to serve customers and the public are welcome to propose more guidance to the products of our factory, and seek common development.RVV 全称铜芯聚氯乙烯绝缘聚氯乙烯护套软线， 又称轻型聚氯乙烯护套软线 , 俗称软护套线， 是护套线的一种。       R: 代表软线 \ 软结构的意思       V: 聚氯乙烯绝缘       V: 聚氯乙烯护套       RVV 电线概述         按 GB 5023.5-1997 的规定， RVV 是指轻型聚氯乙烯护套软线或普通聚氯乙烯护套软线， 额 定电压等级分别为 300/300 和 300/500 ，额定电压 250V/450V     RVV 电线电缆是两芯以上的聚 氯乙烯绝缘聚氯乙烯护套软线（两条或上的 rv 线外加一层护套） 。 RVV 电线是弱电系统最常用的 线缆，其芯线根数不定，两根或以上，外面有 PVC 护套，芯数从 2 芯到 24 芯之间按国标分色，两 芯以上绞合成缆，外层绞合方向为右向芯线之间的排列没有特别要求。