1X25独股接地线 VV电力电缆

全国铁路营业里程达到12万公里以上，复线率和电化率分别达到50%和60%以上，主要实现客货分线，基本形成布局合理、结构清晰、功能完善、衔接顺畅的铁路网络，运输能力满足国民经济和社会发展需要，主要技术装备达到或接近*水平。

本产品适用于发电、冶金、石化等工矿企业集散系统、电子计算机系统、自动化系统的信号传输及检测仪器、仪表等，做连接线。 工作温度：一般型不超过70℃，型号后带105的不超过105℃。 环境温度：固定敷设-40℃非固定敷设-15℃。 额定电压U0/U 450/750 弯曲半径：无铠装层电缆应不小于电缆外径的6倍，带铠装层电缆应不小于电缆外径的12倍。 绝缘厚度的平均值应不小于标称值，其处厚度应不小于标称值的90%~0.1mm。 绝缘性能要求绝缘线芯应能经受GB/T3048.9规定的交流50Hz火花试验作为中间检查。绝缘线芯在20℃时绝缘电阻应不小于5000MΩ?km。
　　型号及名称：KVV铜芯聚氯绝缘聚氯护套控制电缆KVVP铜芯聚氯绝缘聚氯护套编织控制电缆KVV铜芯聚氯绝缘聚氯护套控制电缆KVVP2铜芯聚氯绝缘聚氯护套铜带控制电缆KVV22铜芯聚氯绝缘聚氯护套钢带铠装控制电缆KVVR铜芯聚氯绝缘聚氯护套控制软电。JYPV-ZB计算机电缆
Spin cassette XF5-273 communication cable transfer box, adopting advanced technology at home and abroad, in accordance with the international advanced standard production in the eighty s of cable wiring e, for the city, the town of telecommunication network backbone cable and wiring cable transfer. Features: 1. The connection jumper adopts rotary clamp-type connection and is sealed with silica gel on the metal clip, because it is not only reliable and durable, but also easy to operate and repair without stripping. 2. The wiring terminals in the handover box shall be arranged in 25 pairs as a basic unit, consistent with the basic units of the local telephone cables and marked with Numbers on the terminals to facilitate construction and maintenance. 3. The structure, arrangement and installation dimensions of the wiring modules are exactly the same as those of 3M products and can be used for each other. 4. The box body is treated by electrostatic spraying, beautiful and generous, with clear lines, good anti-corrosion and waterproof performance and long service life. Main technical parameters: the environment temperature: - 40 ℃ ~ + 65 ℃ atmospheric pressure: 70 ~ 106 kpa relative humidity: 95% or less is random ends and insulation resistance between terminals and ground > 5 x 104 Μ Ω. When connecting any two ends and any terminals and grounding to 1000V ac, there shall be no breakdown or flying arc in 1min. Contact resistance between wire and terminal <5 x lO - 3 Ω.

计算机电缆线芯采用布线电缆色谱：主色：白--红--黑--黄--紫 副色：蓝--橙--绿--棕--灰 电缆色谱主副色按顺序两两搭配既可，如 白蓝 白橙 白绿 白棕 白灰 红蓝。。。。。。。以此类推

24对电缆色谱排列：白兰、白橙、白绿、白棕、白灰、红兰、红橙、红绿、红棕、红灰、黑兰、黑橙、黑绿、黑棕、黑灰、黄兰、黄橙、黄绿、黄棕、黄灰、紫兰、紫橙、紫绿、紫棕

　　 GS-HRPVSP双绞线用于：MODBUS通讯、MODBUS总线、MODBUS-RS485通讯、RS485通讯、RS232通讯、RS422通讯、电器仪表、电讯广播、防盗报警系统、楼宇对讲系统、监控系统、链条随行通讯、电子设备及自动化装置等线路中。
Flame retardant cable, is refers to under specified test conditions, specimen was, after removed test of ignition, flame spread only in a limited range, residual sheep and burning in the finite cable to self extinguishing in the course of time. The fundamental characteristic is that it may burn out and not run in the case of fire, but it can spread fire. Generally speaking, in case of electric wire fire, it can be put in the local scope, not to produce spread, keep other kinds of e, oid causing greater loss. The meaning of the flame retardant cable: under specified test conditions, samples were, in is removed after the fire, the spread of flame on the sample only in a limited range and the characteristic of self extinguishing, which has the ability of or delay the outbreak or spread of flame.

计算机电缆用　途：本产品广泛地应用于发电、冶金、石油、化工、轻纺等部门的检测和控制用计算机系统或自动化装置、以及一般的工业计算机上。使用特征：额定电压UO/U为300/500V。允许工作温度不超过70℃，敷设温度不低于0℃，允许弯曲半径应不小于电缆外的12倍，软结构电缆应不小于电缆外的8倍，铜带的电缆应于小于电缆外径的15倍。产品字母代号及意义：DJ-电子计算机用电缆 Y-聚V-聚氯 R-表示多股软线芯 P-铜丝 P2-铜带 P3铝塑复

电子计算机用电缆，选用介电常数小的高压聚作绝缘。采用对绞、对屏、总屏（或三线组合、组、组屏总屏）等结构形式，具有介质损耗小、传输传号能力强、抗干扰性能好等特点，能可靠地传输微弱的模拟信号，可广泛地应用于发电、冶金、石油、化工、轻纺等部门的检测和控制用计算机系统或自动化装置，以及一般的工业计算机上。
　　1.4电缆的允许弯曲半径：非铠装电缆应不小于电缆外径的10倍；铠装电缆应不小于电缆外径的15倍。RS232/RS-485通讯电缆信号线适用于EIARS-232/422通讯网络，是楼宇自控、工业控制网络、电力自动化等通讯网络的常用电缆型号。