武都3X4+3X1.0电缆格春联

武都3X4+3X1.0电缆格春联

铠装通信电缆机械保护层：53型采用0.15mm厚的轧纹钢带，纵包于基本电缆之上，两边搭接。钢带表面经涂塑处理，以防腐蚀和水份侵入。23，22型采用双层钢带绕包也有相似的性能。、铠装通信电缆护套：黑色高分子量低密度聚乙烯或聚氯乙稀护套。
　　ZR-BPYJVP3交联聚乙烯绝缘聚氯乙烯护套铝聚酯复合膜绕包屏蔽变频电力电缆。阻燃电缆：由于电缆线路起火带来的危害,促使都把电缆的阻燃性放到日益重要的位置上，我公司生产阻燃电缆见表1－2。适用于交流额定电压U0/U=450/750V供电，监控等回路中。

　　IEC/BS4066-1阻燃等级（单根电线或电缆垂直燃烧测试FlameTestOnSingleVerticalInsulatedWires/Cables）这是单根电缆的阻燃标准。阻燃电缆◎IEC/BS4066-3阻燃等级（成束电线或电缆垂直燃烧测试FlameTestOnBunchedWires/Cables）这是成束电缆的标准。

Sheathed control cable products use feature: the cable conductor of long term working temperature should be allowed no more than 70 ℃. When the cable temperature under installation should not below 0 ℃, when laying bending radius should not less than 10 times of cable diameter. The cable with armor layer or copper band shielding structure shall not be less than 12 times the outer diameter of the cable.



Call communication cable product features low cable of rated voltage: the minimum working temperature is not lower than 500 v low cable - 40 ℃. The highest long-term low cable allows working temperature: polyethylene insulation is not higher than 70 ℃; Cross-linked polyethylene insulation is not higher than 90 ℃. Low cable temperature: the minimum 0 ℃. Preheat if below minimum laying temperature. 's main electric cable performance: (l) 20 ℃ conductor dc resistance: 0.75 was no more than 26 / km; 2.0 was no greater than 9.8 Ω/km (2) 20 ℃ when the cable insulation resistance: 0.75 was not less than 300 m Ω • km; 2. Om Ω • Omm2 not small to 10 km. (3) voltage test between cable core and cable core, and between wire core and shield through ac 2500V/5min. (4) the working capacitance of the cable set shall not exceed 100pF/m when the test frequency is 1kHz. (5) the capacitance imbalance of the cable set shall not be greater than 250pF when the test frequency is lkHz and the cable length is 250Im. The combustion characteristics of the ending cable

以下是电流互感器的几种接线方法：A图A，一台互感器接线，主要用于测量对称三相电路中线路上的电流。B图B，三台互感器星形接线方法，可测量对称和不对称三相电路（包括三相四线）中线路上的电流。C图C，两台互感器V形接线方法，测量对称和不对称三相三线电路中线路上的电流。三相电流矢量和为零，所以下面电流表测量的是未装互感器那相的电流。此接法也可用于继电保护接线，但灵敏度低。D图D，两台互感器电流差接线法，用于线路、电机、并联电容器的继电保护接线，灵敏度较高。

　　4． 电缆安装敷设温度应不低于0℃(高温型不低于-25℃)。可广泛地应用于发电、冶金石油、化工、轻纺等部门及领域的检测和控制用计算机系统或自动化装置的工业计算机。使用特征：长期允许高工作温度70℃电缆弯曲半径：无铠装电缆不小于电缆外径的6倍，铠电缆不小于电缆外径的12倍。

　　本产品适用于冶金、石油、化工以及发电厂等工矿企业，在高温条件下和恶劣环境中（如酸、碱、油水低温条件）作为各种电器、仪表及自动装置之连接线，供交流额定电压450/750伏及以下控制、监控及保护电路行装场合下使用。
Cable conductor of long term working temperature should be allowed no more than 70 ℃, in the process of using cable should prevent high temperature radiation or contact; The environment temperature under installation should not below 0 ℃.

　　铠装通信电缆电气特性：电缆符合基本电缆的全部电气要求。基本电缆：任何单护套或双护套结构的填充型和非填充型电缆。铠装通信电缆机械保护层可以加到任何结构的电缆上，以增加电缆的机械强度，提高防侵蚀能力，是为易受机械破坏及易受侵蚀的地区而设计的电话电缆。



Railway cables are suitable for transmission under rated voltage ac 500V or dc 1000V and below. Product name, model, specification and scope: plastic insulation and polyurethane sheath railway cable PTYAH; PTYA; PZYA; PTYV; PTYY,; PTY22; PTY23; (PZY02; PZY03; PZY23 PZY22) 1/0.8mm (1/1.0mm) 2-48 core is suitable for railway communication, fire alarm, telegraph and other automatic devices with rated voltage ac 500V or dc 1000V or below. Poly (PVC insulation composite sheath steel tape armoured polyvinyl chloride sheathed PTYA23 PTYA22 PTY23 PTY22 PTYAH23 PZYA23 PZYA22 PZY23 PZY22 0.8 mm (1/1.0 mm) 4-61 core is fit for ac rated voltage 500 v or dc voltage 1000 v and below transfer audio and fixed laying railway and group control automation assembly line, can transport railway group general automatic letter, also can transmit the audio frequency shift automatic block and business calls. ? 4, using features: cable in - use under 40 ℃ to + 50 ℃. Cable conductor long-term working temperature shall not exceed 70 ℃. Ordinary sheath of the cable laying under the temperature below 5 ℃, resistance to sheath for - 10 ℃. The bending radius shall not be less than 15 times of the outer diameter of the cable (when laying) and shall be applicable to any horizontal difference

　　吊线和电缆用同一外护层，经济实用，安装敷设方便。在一30~C一60~C的环境条件下，自承式电缆的机械和电气性能保持不变。结构：导线：退火裸铜线，铜线直径为0．32，0．4，0．50，0．60，0．70，0．80，0．90mm。

进制，FX系列可编程控制器中，输入继电器、输出继电器的软元件编号都是以8进制数分配的，由于在8进制数中，不存在[8,9]所以按[0～10～1…70～7100～107]上升排列。10进制，辅助继电器(M)、定时器(T)、计数器、状态(S)软元件编号（其他牌子的PLC的编号方式有12进制等）,应用指令的操作数中的数值指定和指令动作的指定。16进制，应用指令的操作数中的数值指定和指令动作的指定，通常在变频器的通讯地址、命令码表示。

　　ˎ̥NH-KFV电缆，KFVR电缆优势说明：详细说明:NH-KFV电缆，KFVR电缆矿用电缆是煤矿用电缆的简称，矿用电缆均为阻燃电缆，都应经过安标国家矿用产品安全标志中心颁发矿用产品安全标志证书。U型（M型）煤矿用橡套电缆本产品按GB/T《矿用橡套软电缆》、MT《煤矿用阻燃电缆》生产，同时还可根据用户需要按国际电工委员会推荐标准IEC、英国标准、德国标准及美国标准生产。

Oil filled telecommunication cable identification and marking: cable outer surface sexual identification mark, mark at no more than alternate 1 m intervals, tag contents are: the diameter of wire, line number, cable type, factory name and year of manufacture, marking at no more than alternate 1 m intervals to mark on the surface, but with the tag stagger.