DJVVP22DJYVP22DJYJVP22编织总屏蔽（铜丝或镀锡丝）、铠装。
DJVVP2-22DJYVP2-22DJYJVP2-22铜塑复合膜总屏蔽、铠装。
DJVVP3-22DJYVP322DJYJVP3-22铝塑复合膜总屏蔽、铠装。
Forlayingindoors、intunnel,cabletrench,ordirectinground,abletobearexternalmechanicalforces,butunabletobearlargepullingforce。
说的通俗些铠装电缆也就是地埋的电线电缆，动力线传输电能电缆加上铠装层的目的除了增强抗拉强度、抗压强度等机械保护延长使用寿命外，铠装的有一定的抗外力性能，还可以放一些老鼠撕咬，不至于透过铠装造成电力传输问题，铠装的弯曲半径要大，铠装层可以接地保护电缆动力铠装电缆：型号有：VV22、VVR22、VVP2。
With the way
敷设时环境温度≥0℃。
无铠装层电缆，应不小于电缆外径的6倍。
有铠装或铜带屏遮结构电缆，应不小于电缆外径的12倍。
有屏遮结构的软电缆，应不小于电缆外径的6倍。
也可用于通信系统作信息传输。
矿用电缆是从国外引进自动化调度、监控技术，我公司承担研制配套电缆而形成的一种产品，公司制定了该产品的行业标准，在国内具有领先水平。
下表表示两相单极式步进电机的激磁方式及其特征。
两相步进电机以基本步距角步进称为全步进驱动，其激磁方式有1相激磁方式和2相激磁方式两种。
1相激磁方式为按1相激磁驱动顺序来激磁。
相对的，2相激磁为两个相线圈流入激磁电流。
1相激磁方式与2相激磁方式以相同电压驱动时，与2相激磁方式比较，1相输入电流为2相的1/2，转矩只减少1/√2，比2相激磁方式效率更好。
但步进时的阻尼（衰减）稳定时间长些，输入频率与转子的共振频率相近，易产生共振，发生失步现象，故只能使用在特定的速度范围内。
MHYBV1X(2～7)X(0.75-1.5)mm2。
MHYAV（HUYAV）矿用聚乙烯绝缘铝/塑复合带屏蔽阻燃聚氯乙烯护套通信电缆用于较潮湿的斜井和平巷作通信线。
MHYA32（HUYA32）矿用聚乙烯绝缘铝/塑复合带屏蔽钢丝铠装阻燃聚氯乙烯护套通信电缆用于煤矿竖井或斜井作通信线。
HYA53/HYAT53（防鼠咬/直埋）主要用于传输音频、15市内通信电缆|通信电缆|（管道/架空）HYAC（架空 ）HYAT（防水）0kHZ及以下的模拟信号和2048kbit/s及以下的数字信号。
在一定条件下，也可用于传输2048kbit/s以上的数字信号。
单芯电线4平方电线用于3匹空调以上，单芯电线6平方电线用于总进线，双色线用于接地线。
二芯、三芯护套电线是做明线使用，多用于工地上施工用，家装不太用到。
三芯护套电线2.5平方可用于柜式空调上用。
聚氯乙烯绝缘矿用执行标准:YD/T产品用途:本产品适用于固定敷设在矿井、巷道等作通信干线及分线箱与机的连接线。
福建省：厦门、福州、南平、三明、莆田、泉州、漳州、龙岩、宁德。
甘肃省：兰州、嘉峪关、金昌、白银、天水、酒泉、庆阳、平凉、定西、陇南。
黑龙江省：哈尔滨、齐齐哈尔、黑河、大庆、伊春、鹤岗、佳木斯、双鸭山、七台河、鸡西、牡丹江、绥化。
电缆的推荐允许弯曲半径如下：无铠装电缆，应不低于电缆外径的6倍；铠装或铜带屏蔽电缆，应不低于电缆外径的12倍；屏蔽软电缆，不低于电缆外径的6倍。
控制电缆泛指设备仪表供电和信号控制。
代表型号：KVV和KYJV，还有其它控制线等等。
产品介绍-矿用控制电缆MKVV矿用控制电缆MKVVR矿用控制电缆MKVVP矿用屏蔽控制电缆MKVV32矿用控制电缆MKVVRP矿用屏蔽控制电缆矿用控制电缆MKVV22矿用阻燃控制电缆矿用监控电缆矿用控制电缆型号MKVV,MKVV22,MKVV32,MKVVR,MKVVP,MKVVRP型号及规格1、矿。
今天有个朋友发信息问我，说他们单位有一排6盏路灯，这6盏灯开，关，每盏路灯1000瓦，他想用一台时控开关控制这6盏灯，问我怎么接线。
我说一台时控开关只能控制10安电流的负载，你这6盏灯加起来6000瓦，电流太大，必须加接触器。
他又问我怎么加接触器，具体怎么接线？那么咱们就根据这个实例讲解一下时控开关配合接触器接线方法，希望可以帮到有同样疑问的初学者。
来选择一台接触器，6盏灯6000瓦，算出它的总电流。
Precautions for installation of power cables: keep 2m distance when the cable is installed in parallel with the thermal pipe, and 0.5m should be maintained when crossing. The cable shall be installed at a distance of 0.5m in parallel or across other pipelines. When the cable is directly buried and installed, the direct buried depth of 1-35kv cable is less than 0.7m. When 10KV and below cables are installed in parallel, the net distance between them shall not be less than 0.1m and 10-35kv shall not be less than 0.25m. The distance of cross installation is not less than 0.5m. Cable laying temperature lower than 0 ℃, bending radius: multi-core cable or 15 (D + D), a single cable 20 or more (D + D), (D for cable diameter, D) for the conductor diameter. ? 6KV and above cable connector:? When installing the terminal head of the cable, the semiconductor electrical shielding layer must be stripped off. During operation, the insulation shall not be damaged. The shield end should be flat and the graphite layer (carbon particles) should be clean. (2) plastic cable end copper tape screened and armor must be good grounding, the short circuit also follow this principle, avoid unbalanced three-phase run ShiGang armoured end produce inductive electromotive force, and even "lighter" and sheath and other accidents. It is required to use my tinplate to braid copper wire for grounding lead. When connecting with the cable copper belt, it should be welded with chromium-iron tin. ? The shield of three-phase copper tape should be connected with ground wire respectively. Note that the shielded ground wire and steel armor ground wire should be separately drawn out and insulated from each other. The position of the welded ground wire should be as low as possible. Basic re for cable terminals and intermediate joints: a. good conductor connection; B. The insulation is reliable, and it is recommended to use irradiated cross-linked heat-shrinkable silicone rubber insulation materials; C. good sealing; D. sufficient mechanical strength to meet various operating conditions. The end of the cable must be used to prevent water and other corrosive materials from corroding, in order to prevent the water tree caused by the aging of the insulation layer and breakdown. Crane or forklift should be used for the loading and unloading of cables. It is forbidden to run flat or lay flat. For installation of large cables, cable laying cart should be used to avoid external damage or abrasion caused by manual dragging. If the cable cannot be laid in time for some reason, it should be stored in a dry place to prevent sunlight from exploding and water entering the end of the cable. ? Note: the installation of wire and cable should be familiar with the performance of wire and cable installation personnel or full-time technical personnel, if there are still unclear matters, ball related technical department or technical department of our factory.
MKVV450/750V煤矿用聚氯乙烯绝缘聚氯乙烯护套控制电缆450/750V矿用控制电缆：|井筒信号电缆|MKVV22；MKVV32；MKVVR矿用控制电缆|煤矿用控制电缆|矿用阻燃控制电缆矿用控制电缆型号：MKVV；MKVV22；MKVV32；MKVVR；MKVVP矿用控制电缆电压：450/75。