莒南ZRB-YJV-14X35+1X16动力电缆格赞许

莒南ZRB-YJV-14X35+1X16动力电缆格赞许

　　 二、执行标准 SPTL/QB2002.10－03 三、使用特性 1.电缆导体的长期允许工作温度应不超过65℃，敷设环境温度应不低于0℃。 2.电缆敷设安装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。
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 buried depth of 1-35kv cable is not 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 is not 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. 6 kv and above cable joint: (1) installing a cable terminal head, must be stripped semiconductor electric shielding layer, operation shall not damage the insulation, should avoid mark uneven situation, when necessary use sand paper to grind; The shield end should be flat and the graphite layer (carbon particles) should be cleaned. (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 accidents such as burning sheath. 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 requirements 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 erosion of water and other corrosive materials, so as to prevent breakdown due to the aging of the insulation layer caused by water trees. 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 done by the installation personnel or full-time technical personnel familiar with the performance of wire and cable. If there are still unclear matters, please consult the relevant technical department or the technical department of our factory.

　　2×1.5、3×1.5、4×1.5、5×1.5、6×1.5、7×1.5、8×1.5、10×1.5、12×1.5、18×1.5、25×1.5、36×1.5。2×2.5、3×2.5、4×2.5、5×2.5、6×2.5、7×2.5、8×2.5、10×2.5、12×2.5、18×2.5、25×2.5、36×2.5。

　　KYJVKYJVRKYJYKYJYR交联聚乙烯绝缘聚氯乙烯聚乙烯护套控制电缆敷设在室内、电缆沟、管道内及地下。KYJV22KYJV23交联聚乙烯绝缘聚氯乙烯聚乙烯护套钢带铠装控制电缆敷设在室内、电缆沟、管道内及地下，电缆能承受机械外力作用。



　　当采用75－5同轴电缆时，一般传输距离在300m时，应考虑使用电缆补偿器。如采用75－9同轴电缆时，摄像机和监视器间的距离在500m以内可不加电缆补偿器。¬为方便用户参考，将常用同轴电缆尺寸列表如下：表中尺寸均为标称尺寸，欲获取更详细的有关电缆的参数，请参考相关标准或制造商的说明。

为了改善这种状况，可以在负载两端并联一定的电阻，RC或灯泡。SSR的许多负载如灯负载，电动机负载，感性和容性负载，在接通时的过渡过程会形成浪涌电流，由于散热不及，浪涌电流是使固态继电器损坏的Zui常见的原因。为了适应这种情况，SSR根据其内部电路结构和输出器件特性，一般均给出了过负载(或浪涌电流)参数倡议额定输出电流(Zui大值)的倍数，脉冲(浪涌)持续时间，循环周期和次数来表示。一般，直流SSR的过负载(浪涌)额定值远小于同功率的交流SSR。

　　可靠接地时整个485线路的地线必须要有良好的接触，从而保证电压一致，因为在实际施工中，为了接线方便，将线剪成多段再连接，但是没有将屏蔽线作良好的连接，从而使得其地线分成了多段，电压不能保持一致，导致共模干扰。

　　三．产品名称及型号HJVV铜芯聚氯乙烯绝缘和护套局用电缆HJVVP铜芯聚氯乙烯绝缘和护套屏蔽型局用电缆四．规格尺寸及重量规格导体直径MM芯数电缆计算直径MM电缆重量KG/KMHJVV8×0.50.5127.1860.52HJVV5×3×0.5157.8270.86HJVV11。
　　1、在50MHz以下衰减常数偏大或超差，而高频有余量，常常是铝塑复合带中的铝基太薄所致，在频率比较低的时候，铝基的厚度小于或与该频率的透射深度相当，造成了α过大。根据理论计算，f=50MHz时的铝层透射深度为12.2µm。

　　四、结构示意图五、型号规格及名称型号名称额定电压V芯数标称截面mm2RVVYP耐油聚氯乙烯护套屏蔽软电缆300/.5-2.5RVVY耐油聚氯乙烯护套非屏蔽软电缆300/.5-2.5煤矿用电话线型号MHYAV20*2*0.8mm煤矿用通信电缆规格MHYAV30*2*0.。



　　 KFF-200，KFP1F-200，KFP1F22-200，KFF22-200型不超过200KFF-260，KFP1F-260，KFP1F22-260，KFF22-260型不超过260℃ 电缆推荐允许弯曲半径 KFF型应不小于电缆外径的12倍。

　　煤矿用聚氯乙烯绝缘聚氯乙烯护套编织屏蔽控制软电缆MKVVRP-450/750(4～37)×(0.5～2.5)mm2。本安计算机电缆铜芯PVC绝缘铜芯PE绝缘铜芯XLPE绝缘。IA-DJVPVIA-DJYPVIA-DJYJPV本安型、编织分对屏蔽（铜丝或镀锡丝）。

选择合适的摇表：如果被测电机额定工作电压是380伏，那么我们可以选择500V的摇表。摇表放平，做个短路测试，两支表笔短接，摇动手柄指针接近0就是好的。再把两支表笔分开，摇动手柄，指针接近无穷大就是好的。测量时把三相电机的连接片去掉，外壳接地，三个绕组的底部接线端我们编一下好，从左到右UVW。第一步：测三相输出端与外壳的绝缘电阻，E接触电机外壳，L分别接触UVW三个接线端，以每分钟120转左右的速度摇动手柄，待指针稳定在无穷大附近时即为绝缘良好。

　　型号名称主要用途铜芯铝芯YJVYJLV交联聚乙烯绝缘聚氯乙烯护套电力电缆敷设于室内，隧道、电缆沟及管道中，也可埋在松散的土壤中，电缆能承受一定的敷设牵引YJV22YJLV22交联聚乙烯绝缘钢带铠装氯乙烯护套电力电缆适用于室内、隧道、电缆沟及地下直埋敷设，电缆能承受机械外力作用，。

　　本厂主要生产自承式电缆适用于本地电信网的城市与乡镇电信线路，也适用于接入公用网的专用网线路。吊线和电缆用同一外护层，经济实用，安装敷设方便。在一31~C一61~C的环境条件下，自承式电缆的机械和电气性能保持不变。