电缆导体长期工作温度应不超过+70℃。
电缆敷设环境温度：聚氯乙烯外护套电缆应不低于0℃;聚乙烯外护套电缆应不低于-20℃。
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。
Correction factor 1.12 1.06 1.00 0.94 0.87 0.79
In addition, once the halogenated body reacts with the water in the air, it will generate "halogenated hydrogen acid", which will seriously corrode e and buildings and cause "secondary disasters".
2.电缆耐火防护电缆数量较少时，可用防火涂料、包带加于电缆上或把电缆穿于耐火管。
同一通道中电缆较多时，宜敷设于耐火槽盒内，且对电力电缆宜用透气型式，在无易燃粉尘的环境可用半封闭式，敷设在桥架上的电缆防护区段不长时，也可采用阻火包。
耐高温控制电缆:我公司是专业生产电线电缆的厂家.主要产品有F46系列耐高温电缆,仪表电缆,计算机电缆,本安电缆,DCS电缆.屏蔽电缆系列电线电缆.KFF,AF,KFFP,DJFPVP,KFFRP KFF、KFFP、KFF22、XKFF、XKFFP、XKFFP22 .耐高温控制电缆（KFFKFFPKF。
单片机都有相似性，学会使用一款单片机，再过渡到另一款就不太困难了。
学习单片机可以从学习单片机的开发环境开始，当前的单片机都有自己对应的集成开发环境(IDE,IntegratedDevelopmentEnvironment)，并有免费版本供初学者下载使用。
集成开发环境可以完成代码的编辑、编译和调试过程，使用起来比较方便。
TI推出的CCS5还可以完成MSP430单片机的图形化配置。
对于初学者，集成开发环境的基本使用没有障碍，特别要注意的是开发环境中对应的开发工程的属性配置。
450/750 v, PVC insulated control cable is suitable for the 450/750 v dc and ac 50 hz, rated voltage of the power plants, power plants, factories, mines, ports and petrochemical enterprises such as long-distance control loop, as between electrical instrumentation and automation instrumentation cables, phoresy all kinds of electric energy role, make the entire electrical system safe and reliable operation.
ZA-YJV22/ZB-YJV22/ZC-YJV22ZA-YJLV22/ZB-YJLV22/ZC-YJLV22交联聚乙烯绝缘钢带铠装聚氯乙烯护套A(B、C)类阻燃电力电缆适宜对阻燃有要求时埋地敷设，不适宜管道内敷设。
PVV铜芯聚氯乙烯绝缘聚氯乙烯护套信号电缆。
PVV32钢芯聚氯乙烯绝缘镀锌钢丝带铠装聚氯乙烯护套信号电缆。
PYV钢芯聚乙烯绝缘聚氯乙烯护套、信号电缆。
PYV32钢芯聚乙烯绝缘钢带铠装聚氯乙烯护套信号电缆。
The cable is insulated by full-chromatograph solid polycondensation. The insulated wire is twisted into a pair of twisted wires. Suitable material of cable core is added to the cable core, and the plastic coated aluminum band shielding layer and the black outer expansion sleeve with the length mark in the counting order can be completed. Junction wire: solid annealed copper wire. Copper wire diameter is 0.32, 0.4, 0.6, 0.8 (mm).
ZR-VV32ZR-VLV32ZR-VV33ZR-VLV33ZR-VV42ZR-VLV42ZR-VV43ZR-VLV43阻燃聚氯乙烯绝缘阻燃聚氯乙烯/聚乙烯护套钢丝铠装动力电缆敷设在高落差地区，电缆能承受机械外力作用及相当的拉力。
电缆的型号：ZR-YJVZR-YJLVZR-YJYZR-YJLYZR-YJV22ZR-YJLV22ZR-YJV23ZR-YJLV23ZR-YJV23ZR-YJLV23ZR-YJV33ZR-YJLV32ZR-YJLV33适用范围：本产品适用于工频额定电压3.6/kV-26/3。
如电推子、，广泛大量使用的手机电源适配器，电动车充电器等，此类电器铭牌上标有明显的“回”字。
Ⅲ类:采用50伏以下(42，36，24，12Ⅴ，等)安全电压的电器，无须采用接地或接零措施。
如剃须刀，安全行灯等。
目前，丨，Ⅱ类工具一般电源电压取220或380伏，Ⅲ类工具过去采用36v，现国标定为42v，需要专用变压器。
工具造成的触电事故的死亡统计，几乎都是由丨类工具引起的。
它的接地接零虽能抑制危险电压，但它的触电保护还不完善，它除依靠本身的绝缘强度及接地装置的完整外，还依靠使用场所的接地，接零系统来保障，许多工矿企业中有的接地电阻太大，有的甚至无接地装置。
多芯电缆线芯截面为35mm2及以下者，其线芯应为圆形，线芯截面在50mm2及以上者为扇形、瓦形或半圆形。
四芯电缆中第4芯（中性线芯）可为圆形或扇形。
五芯电缆中性线可为圆形或瓦型6mm2及以下者允许由单根导体构成，10mm2及以上者由多根单线组成。
Our factory was founded in 1971, is a production and sales of various kinds of flame retardant communication cable, shielded cable for mine, mine screen communication cable, mine telephone cable, shielding signal cable for mine, mine fire retardant signal cable, flame retardant signal cable, mining flame-retardant control cable, communication cable, mining cable, flame retardant mine communication cable, mine, mine communication cable, signal cable, mining control cable, cable for mine monitoring, sensors, cable, signal cable, control cable, computer cable, flame retardant cable, shielded cable. City communication cable, railway signal cable, power line, electrical e wire and cable, video line, system special cable. And other professional manufacturers. Companies with more than 300 employees, engineering and technical personnel more than 30 people, the factory covers an area of 20000 square meters, with fixed assets of 15 million yuan, the total number of companies have production and inspection e more than 120 units (pieces), annual output value of 150 million yuan.
Specification range of frequency conversion cables; 1, some conclusions: 3 core nominal section (1.5 ~ 240 ㎜ 2). 2, some conclusions: 6 core (3 + 3) nominal section (thread core section: 2.5-240 ㎜ 2, line core section: 0.5 ㎜ 35 (2). Example: copper 0.6/1 kv crosslinked polyethylene insulated copper wire braided shielding, polyvinyl chloride sheathed flame-retardant the main loop of the inverter with cable, 3 x 185 + 3 x 35 was expressed as: BPYJVP - 0.6/1 kv 3 x 185 + 3 x 35 note: detailed technical parameters of ball I on cable company LTD.
KVVP2铜芯聚氯乙烯绝缘聚氯乙烯护套铜线铜带屏蔽控制电缆。
KVVP22铜芯聚氯乙烯绝缘聚氯乙烯护套铜线编织屏蔽、钢带控制电缆。
KYJV铜芯聚氯乙烯绝缘聚氯乙烯护套控制电缆。
KVJVR铜芯聚氯乙烯绝缘聚氯乙烯护套控制软电缆。