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。
铠装双绞屏蔽型电缆 ASTP-120Ω（for RS485 CAN） one pair 18 AWG ，黑色护套，电缆外径12.3mm左右。可用于干扰严重、鼠害频繁以及有防雷、防爆要求的场所。
Conditions of use: cable using the environment temperature is to 40 ℃ ~ + 50; At 25 ℃ when the humidity is 95%; Cable laying temperature - 10 ℃ or higher; When laying the cable, the bending radius MHYV is 10 times of the cable outer diameter or 15 times of the cable outer diameter
产品用途：敷设在室内、电缆沟、管道等要求耐高温静电屏蔽的场合。6、最低安装敷设温度：序号1～4-45℃序号5～140℃。HJVV、HJVVP、HPVV通信电缆用途：主要用于传输音频、150kHZ及以下的模拟信号2048kbit/s及以下的数字信号。
产品说明：450/750V聚氯乙烯绝缘控制电缆，适用于直流和交流50HZ额定电压450/750V的发电站、发电厂、工厂、矿山、港口及石油化工企业等远距离操作的控制回路，作为电器仪表及自动化仪表装置之间的连接线，起着传运各种电能的作用，使整个电气系统安全，可靠运行。
“电路改造”和“插座设置”是家装中非常重要的环节，对家装质量和今后的使用影响非常大，一定要好好把关，今天设计本就来为大家讲讲家庭电路改造中一些常见的偷工减料做法，还有插座设置要注意的事项，一起来学习吧。“裸线”埋墙按照规定，电线埋墙时，必须穿保护管。而往往有一些施工队，利用业主的信任与不了解，将电线不套穿线管直接埋入墙内。这是非常典型也是比较容易发现的偷工减料行为，这样做的后果是使得电线容易老化和破损，且无法换线，造成维修的难度加大N倍。
缆芯包带：用聚脂薄膜带纵包缆芯。屏蔽：铝泊屏蔽。护套：黑色（白色）低密度或中密度聚氯乙烯。室内通信电缆用途：本产品供交流额定电压500V或直流电压1000V及以下配电装置中电器，仪表接线之用。产品使用特性：电缆导体的长期允许工作温度应不超过70℃。
●电缆导体的允许长期最高工作温度为90℃。●短路时（最长持续时间不超过5s）电缆导体的最高温度不超过250℃。●电缆敷设时环境温度应不低于0℃。●电缆弯曲半径：三芯电缆不小于电缆外径15倍；单芯电缆不小于电缆外径20倍。
说简单点，BV线就是普通的铜芯电线，就是接500V以下的电源用的．给其它设备提供电源的。BV线的主要型号从1.5平方到240平方，其中BV2.5是家庭装饰装修布线最长使用的型号。其中，阻燃BV线绝缘料加有阻燃剂，离开明火不自燃。
Solid insulated unfilled cable is a kind of internal communication cable designed for the urban communication network. Transmission of audio 1 50k H Z and below analog signals and 2048Kbit/S and below digital signals. Under certain conditions, it can also be used to transmit digital signals over 2048Kbit/S. In a 30 ℃ ~ + 60 ℃ environment conditions, the cable to ensure long-term, reliable running. Structure.
生产的矿用通信电缆主要用途如下：型号名称规格用途MHYV（PUYV）聚乙烯绝缘阻燃聚氯乙烯护套矿用信号电缆2-57/0.28用于平巷、斜巷及机电硐室MHJYV（PUJYV）聚乙烯绝缘阻燃聚氯乙烯护套加强矿用通信电缆2-57/0.28（三钢四铜）用于平巷、斜巷、有较好的抗拉强度MHY。
使用条件(1)额定电压U0/U为450/750V;(2)电缆导体的长期允许工作为70℃；(3)电缆的敷设温度应不低于0℃,推荐的允许弯曲半径；(4)无铠装层的电缆，应不小于电缆外径的6倍；(5)有铠装或铜带屏蔽结构的电缆，应不小于电缆外径的12倍；(6)有屏蔽层结构的软电缆，应不小于电缆的6倍。
三菱定位模块FX3U-1PG没有用于连接正转限位/反转限位的限位开关的端子。请将限位开关连接到可编程控制器主机上，以各输入使正转限位(BFM#25b2)或反转限位(BFM#25b3)置为ON/OFF。为了安全起见，不仅仅在可编程控制器侧，在伺服放大器侧也请设置正转限位/反转限位的限位开关。此时，请使可编程控制器侧的限位开关比伺服放大器侧的限位开关稍先动作。步进电机驱动器没有用于连接限位开关的端子，请设置在可编程控制器侧。
二：产品执行标准Q/HHTZH007.1阻燃性能试验执行GB规定三：使用特性1．交流额定电压：U0/U0.6/1KV最高工作温度：105℃最低环境温度：固定敷设-40℃2．电缆安装敷设温度应不低于-25℃。
1. Mine control cable execution: mt818-1999? 2. Mine flame retardant control cables: this product is applicable to ac rated voltage u0/u of 450/750v. And the following control and control circuits and the protection lines and the connection lines of the electrical instruments in the distribution equipment. ? 3. Model specifications and scope of mine control cables:? Model of control cable for mine? Specification range? Using MKVV MKVVP, MKVVP2? 0.5 - was 10, 2-61 core? Suitable for weak current control or strong electromagnetic field area mkvvvv22, mkvvvvv20? 0.5 - was 10, 4-61 core? MKVV32, MKVV30? 0.5 - was 10, 7-61 core? MKVVR? 0.5-6 was, 2-61 core? MKVVRP? Was 0.5-4, 2-61 core? MKVVP22 MKVVP2-22? 1.5 - was 10, 4-61 core? MKVVP2-22-1? 1.5 - was 10, 4-61 core? Mainly used in 500KV substation and power plant distribution device and high electromagnetic field area mkvv-1, mkvvvvv22-1? 0.5 - was 10, 2-61 core? 4, using features: coal mine with control cable conductor long-term allowed working temperature is 70 ℃, the cable temperature under installation should not below 0 ℃. Permissible bending radius of control cables used in coal mines: for cables with armored or copper band shielding structures, the bending radius should not be less than 12 times of the outer diameter of the cables. For soft cable with shield layer structure, it should be no less than 6 times the outer diameter of the cable. The cable without armor layer should not be less than 6 times the outer diameter of the cable. ?
HJVV5x2x0.4 HPVV5x2x0.4HJVV5x2x0.5 HPVV5x2x0.5 HJVV10x2x0.4 HPVV10x2x0.4HJVV10x2x0.5 HPVV10x2x0.5 HJVV20x2x0.4 HPVV20x2x0.。
2, product characteristics: cable ac rated voltage up to 500 v, the long-term working temperature of cable core shall not exceed 70 ℃. Cable allows bending clearance diameter should not less than 6 times of cable diameter, temperature under installation should not below 0 ℃.