不同作用的电缆
Cables with different functions
1、SYV：实心聚乙烯绝缘射频同轴电缆
1. SYV: solid polyethylene insulated RF coaxial cable
2、SYWV(Y)：物理发泡聚乙绝缘有线电视系统电缆，视频（射频）同轴电缆（SYV、SYWV、SYFV）——适用于闭路监控及有线电视工程
2. SYWV (y): physical foamed polyethylene insulated cable for cable TV system, video (RF) coaxial cable (SYV, SYWV, syfv) - applicable to closed-circuit monitoring and cable TV projects
SYWV（Y）、SYKV 有线电视、宽带网专用电缆结构：（同轴电缆）单根无氧圆铜线 物理 发泡聚乙烯（绝缘）（锡丝）（铝）、 聚氯乙烯（聚乙烯）
SYWV (y), sykv cable TV, broadband network special cable structure: (coaxial cable) single oxygen free round copper wire physical foaming polyethylene (insulation) (tin wire) (aluminum), polyvinyl chloride (polyethylene)
3、信号控制电缆（RVV护套线、RVVP屏蔽线）家庄电动伸缩门 保定桌椅  保定水处理设备 河北机械加工  保定养老院  保定防水——适用于楼宇对讲、防盗报警、消防、自动抄表等工程
3. Signal control cable (RVV sheathed wire, RVVP shielded wire) - applicable to building intercom, anti-theft alarm, fire protection, automatic meter reading and other projects
RVVP：铜芯聚氯乙烯绝缘屏蔽聚氯乙烯护套软电缆 电压300V/300V2-24芯——用途：仪器、仪表、对讲、监控、控制安装
RVVP: copper core PVC insulated shielded PVC sheathed flexible cable with voltage of 300V / 300v2-24 cores - purpose: instrument, instrument, intercom, monitoring and control installation