CPEV通信电缆CPEV-S沙湾定制格24X1.5控制电缆批发格舒心
ZR-KVV铜芯聚氯乙烯绝缘和护套（阻燃）控制电缆。ZR-KVVR铜芯聚氯乙烯绝缘和护套（阻燃）控制软电缆。ZR-KVVP铜芯聚氯乙烯绝缘和护套铜丝屏蔽（阻燃）控制电缆。ZR-KVVRP铜芯绝缘和护套铜丝屏蔽（阻燃）控制软电缆。
矿用地面电缆MHYV|矿用地上线MHYV煤矿专用电缆|井下电缆|矿山电缆|井筒电缆|防爆线|矿用设备专用电缆|井下信号电缆|统称矿用通信电缆MHYAV(5×210×220×230×250×280×2100×2对数二、 电缆型号及名称 MHYV 对)煤矿用聚乙烯绝缘聚氯乙烯护套通信电缆 M。
矿用通信电缆2、绝缘材料：高密度聚乙烯或聚丙烯，按照全色谱标准标明绝缘线的颜色。3、绝缘线对：把二根不同颜色的绝缘线按不同的节距扭绞成对，并采用规定的色谱组合以便识别线对。4、通信电缆缆芯结构：以1对为基本单位，超过25对的电缆按单位组合，每个单位用规定色谱的单位扎带绕扎，以便识别不同的单位。
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。
矿用电缆MHYAV（20 30 50 ）X2X0.8型号：MHYAV、MHYA32、MHYV、MHYVR、MHYVRP、MHYVP、MHY、MHJY6、产品说明：型号名称MHYV煤矿用聚乙烯绝缘聚氯乙烯护套通信电缆MHYVR煤矿用聚乙烯绝缘聚氯乙烯护套通信软电缆MHYVP煤矿用聚乙烯绝缘编织屏蔽。
C722电压保持在7.5V。3当Y再次输出高电平时，C722又被充电到10V。当Y变为低电平是C722（10V）对C715(7.5V)充电。C715=8.75V。当Y再次输出高电平时，此时C715两端的电位为：左边：5V,右边：13.75V(5V+8.75V)，C715对C719充电，C719电压变为11.875V，C715由于对C719充电，电压变为11.875V。此时+15V_ALWP电压是11.875V。
煤矿用阻燃电缆包括3.3KV及以下采煤机软电缆，1.14KV采煤机屏蔽监视加强型软电缆，3.3KV及以下采煤机金属屏蔽软电缆，1.14KV及以下移动软电缆，6KV屏蔽监视型软电缆，6KV及以下屏蔽软电缆，0.5KV煤矿用电钻电缆，煤矿用移动轻型软电缆等多种型号规格的适用于煤矿井下设备用电线电缆。
MHYVP 2 * 3.3+2 * 0.85 data for mine shielded communication cable 1. Tin coated copper wire is used for conductor, 47/0.3 for conductor, 12/0.3 for 0.85, and 7/0.28 tin coated copper wire for drainage line. 2. Insulation color: 3.3 the wire core is a red one and a blue one, while the 0.85 wire core is a white one and a green one. The white wire core is wrapped with aluminum foil. 3. Insulation thickness: 3.3 core insulation thickness is 0.5, and the outside diameter after insulation is 3.5 mm. The insulation thickness of wire core is 0.7 and the outside diameter after insulation is 2.5mm. 4. Into line with the four wire core is arranged for red, green, blue, white, streamline, and row streamline to conductors are twisted together, don't put longitudinal, are not added when cabling filler, external use aluminum foil winding and cable core, then a layer of polyester film around the package, the outside is a layer of copper wire braided shielding (shielded copper wire tin plating). 5. Sheath: the front diameter is 8.2mm, the back diameter is 12mm (between 11.7mm and 12mm), and the sleeve is flame retardant blue
二、电缆的型号、名称和用途序号型号名称使用范围1ZR-VVZR-VLVZR-VYZR-VLY阻燃聚氯乙烯绝缘阻燃聚氯乙烯/聚乙烯护套动力电缆敷设在室内、隧道及管道中，电缆不能承受机械外力作用ZR-VV22ZR-VLV22ZR-VV23ZR-VLV23阻燃聚氯乙烯绝缘阻燃聚氯乙烯/聚乙。
We comply with the following production, sales and delivery criteria for all products: 1) production time: the goods can be delivered on the earliest day when there is a spot, and the needs to be customized. 2) sales discount: large is preferred. 3). Sales volume: teleconference. 4) delivery standard: the freight charge shall be borne by the seller. The arrival time is generally 3 days. If it is true that the products provided by our company are not in conformity with the re of the contract due to the problem of the products, we agree to the buyer to exchange or reject the products and return the goods.
Armoured twisted-pair shielded cable | RS485 ASTP dedicated cable CAN be used in low speed, short, no ordinary twisted pair, on the other hand, at high speed, long transmission, it must adopt impedance matching (usually 120 Ω) of RS485 special cable (STP - 120 Ω (for RS485 & CAN) one pair 18 AWG), but also should be used under harsh type sheathed twisted-pair shielded cable (ASTP - 120 Ω (for RS485 & CAN) one pair 18 AWG).
（1）线芯线芯是电力电缆的导电部分，用来输送电能，是电力电缆的主要部分。（2）绝缘层绝缘层是将线芯与大地以及不同相的线芯间在电气上彼此隔离。（3）屏蔽层15KV及以上的电力电缆一般都有导体屏蔽层和绝缘屏蔽层，保证电能输送，是电力电缆结构中不可缺少的组成部分。
为了大家有一个好的学习方法，能在最快最短的时间内学会掌握plc的应用，特此为初学PLC的同学编写了一份学习PLC的流程和方法，教大家如何学习PLC，希望对大家有所帮助，这是某个学员学习时候的一些学习方法及感悟，特此分享给大家。当然，这只是我自己的观点，大家如有什么好的建议，也希望同学们能向我积极提出来，我们共同讨论学习和进步。第一：掌握西门子硬件的结构及各部分的一个功能，熟悉PLC的硬件接线，：开关量输入输出的接线，模拟量输入输出的接线。
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。
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
接地引出线要求采用我镀锡编织铜线，和电缆铜带连接时应用铬铁锡焊，不宜用喷灯封焊，以免烧损绝缘。 ③三相铜带屏蔽应分别与地线相连，注意屏蔽接地线和钢铠接地线应分别引出，相互绝缘，焊接地线的位置应尽量靠下。
带钢丝绳的PVC行车控制电缆使用特性:额定电压：U0/U0.6/1KV及以下最高工作温度：100℃最低环境温度：固定敷设-40℃我厂在生产普通塑料绝缘控制电缆的基础上，近年来又开发了屏蔽和阻燃型控制电缆，深受广大用户欢迎。