愉快接地电缆VV1X16平方硚口

愉快接地电缆VV1X16平方硚口

　　五、带钢丝绳PVC行车控制电缆又叫带钢丝绳的PVC行车控制电缆，行车控制电缆，带钢丝绳电缆-带钢丝绳的电缆，电动葫芦电缆，电动葫芦专用电缆，带钢丝绳的行车控制电缆，带钢丝的行车控制电缆，带钢丝绳电缆，行车电缆，行车手柄线，天车手柄线，电动葫芦手柄线。
Over the years enterprises to ", the user is supreme, service, abide by the contract "for the purpose of" honesty sincerity, win-win "business philosophy, adhere to the" in order to save, to the credibility of development, and tomorrow's survival "principle,

Video transmission usually adopts direct modulation technology and takes the form of baseband (about 8MHz bandwidth). The common transmission medium is coaxial cable. Coaxial cable is specially designed for transmitting video, and its loss, image distortion and image attenuation are all relatively small, which can well complete the task of transmitting video.

　　特性：(1) 抗张强度比一般PVC电线大：一般PVC电线抗张强度大于1.05Kgf/mm2，而低烟无卤电线抗张强度大于1.2Kgf/mm2；(2) 具有良好的耐候性(-30℃~105℃)；(3) 具备良好的柔软度(硬度为80—90)；(4) 具有非移性(因为此产品配方中不用添加可塑剂，故不会有移形性。



　　KVVP聚氯乙烯绝缘，聚氯乙烯护套铜丝编织屏蔽控制电缆敷设在室内、电缆沟中、管道内及地下，具有防干扰能力。KVVP聚氯乙烯绝缘，聚氯乙烯护套软控制电缆敷设在室内移动要求柔软等场合。KVVRP聚氯乙烯绝缘，聚氯乙烯护套铜丝编织屏蔽软控制电缆同上具有防干扰能力。

一个交换机能带动多少个网络监控摄像头？千兆交换机一般接200万网络摄像机几个？24个网络头，用一台24口百兆交换机行不行？今天我们就这些问题，来系统深入地了解一下。根据摄像机的码流和数量来选择摄像机码流选择交换机前，首先要弄清楚每路图像占用多少带宽。摄像机数量要弄清楚交换机的带宽容量。常用交换机有百兆交换机、千兆交换机。它们的实际带宽一般只有理论值的60~70%，所以它们端口的可利用带宽大致是60Mbps或600Mbps。

　　矿用通信电缆型号以及用途：MHYVP：煤矿用聚乙烯绝缘编织屏蔽聚氯乙烯护套通信电缆，用于电场干扰较大的场所作信号传输，适用于固定敷设MHY32：煤矿用聚乙烯绝缘钢丝锴装聚氯乙烯护套通信电缆，用于平巷，竖井或斜井作主信号传输MHYVR：煤矿用聚乙烯绝缘聚氯乙烯护套通信软电缆，用于矿场作普通信号传输，可。

Purpose of HYAT solid insulated filled cable: solid insulated filled cable is suitable for the urban telecommunication line of the local telecommunication network in the town of wuyu, and also for the special network line connecting to the public network. Mainly used for pipeline laying. The inner and outer surfaces of the cable core and the shield layer are filled with oil paste and poured to prevent water intrusion. The mechanical and electrical properties of the cable remain unchanged under conditions of 30~C - 60~C. Structure: wire: annealed bare copper wire, copper wire diameter 0. 32, 0. 40, 0. 50, 0. 60, 0. 70, 0. 80, 0. 90 (mm). Insulating material: high density polypropylene or polypropylene, colour of the insulated wire as indicated by full chromatograph. Pair of insulated wires: twist two different colored insulated wires into pairs at different pitch and use the specified chromatographic combination to identify pairs. Core structure: with 25 pairs as the basic unit, more than 25 pairs of cables are assembled according to the unit, each unit is wired with the unit of specified chromatogram to identify different units. 100 pairs of cables with more than one pair of cables plus 1% of the reserve pair, but not more than 6 pairs. The gap in the core is filled with oil paste. Core tape: wrap with a polygrease film tape. Shielding: metal strip with or without striping, which is longitudinal wrapped outside the core of the cable. Sheath: black low density polymer. Double sheathed cables can also be provided. 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. Other structures: according to the needs of users, we can provide armored cables HYAT53, HYAT55 and high frequency isolation cables YATG with strengthened mechanical protection layer.
　　直流电阻:20℃,0.4mm铜线,小于等于148Ω/km，0.5mm铜线,小于等于95Ω/km。2.绝缘电气强度：导体之间1min1kv不击穿导体与屏蔽1min3kv不击穿3.绝缘电阻：每根芯线与其余线芯接地，控制电缆大于10000MΩ.km,HYAT电缆大于3000MΩ.km。

　　型号及名称表 1型 号名 称铜芯铝芯VV－PYJV－PVLV－PYJLV－P聚氯乙烯(交联聚乙烯)绝缘金属屏蔽聚氯乙烯护套电力电缆VV22－PYJV22－PVLV22－PYJLV22－P聚氯乙烯(交联聚乙烯)绝缘金属屏蔽钢带铠装聚氯乙烯护套电力电缆VV32－PYJV32。



　　二、适用范围聚氯乙烯绝缘聚氯乙烯护套控制电缆适用于额定电压450/750V″及以下或0.6/1KV及以下控制、信号、保护及测量系统接线之用。三、使用特性工频额定电压U0/U为450/750V或0.6/1KV。

　　2、用途：本产品适用于直流和交流50HZ-60HZ下，额定电压450/750V及以下的控制、信号保护和测量线路。3、产品型号规格及范围：产品型号规格范围使用场合KYV,KYVP,KYVP20.5-10mm2,2-61芯此产品绝缘电阻高，防水性能强，较好的耐寒性，适用于弱电控制系统或强电磁场干扰区。

运动目标跟踪运动目标的跟踪，即通过目标的有效表达，在图像序列中寻找与目标模板相似候选目标区位置的过程。简单说，就是在序列图像中为目标定位。运动目标的有效表达除了对运动目标建模外，目标跟踪中常用到的目标特性表达主要包括：视觉特征(图像边缘、轮廓、形状、纹理、区域)、统计特征(直方图、各种矩特征)、变换系数特征(傅里叶描绘子、自回归模型)、代数特征(图像矩阵的奇异值分解)等。除了使用单一特征外，也可通过融合多个特征来提高跟踪的可靠性，目前主流的方法有：基于区域匹配跟踪算法、基于轮廓匹配跟踪算法、基于特征匹配跟踪算法。

　　3、产品标准：GB9330.2-88《聚氯乙烯绝缘和护套控制电缆》4、电缆型号、名称及使用范围型号名称使用范围ZR-KVV阻燃聚氯乙烯绝缘，阻燃聚氯乙烯护套控制电缆敷设在室内、电缆沟中、管道内及地下。

　　二、适用范围聚氯乙烯绝缘聚氯乙烯护套控制电缆适用于额定电压450/750V″及以下或0.6/1KV及以下控制、信号、保护及测量系统接线之用。三、使用特性工频额定电压U0/U为450/750V或0.6/1KV。