SYV视频电缆欢乐75-15-41
射频同轴电缆主要适用于传输设备及及各类数字程控交换机，光电传输设备内部联结和配线架之间的信号传输，用于传输数据、音频、视频等通讯设备。
护套采用阻燃材料，安全系数高。采用先进的工艺生产，使电缆的阻抗均匀性好。多芯电缆在机架敷设中更加便捷。根据需要可生产阻燃、耐寒型、耐热型等有特殊要求的品种。
IA-DJVP3VP3RIA-DJYP3VP3RIA-DJYJP3VP3R本安型、本安型、铝塑复合膜分对屏蔽、总屏蔽软结构。IA-DJVPV22IA-DJYPV22IA-DJYJPV22本安型、编织分对屏蔽（铜丝或镀锡丝）、铠装。
1、产品名称：自承式控制电缆KVVRC行车控制电缆2、型号：KVVRC、KVVPRC、KVVP2RC、KVVRPRC3、产品说明：型号名称KVVRC自承式铜芯聚氯乙烯绝缘聚氯乙烯护套行车控制电缆KVVPRC自承式铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽行车专用电缆KVVP2RC自承式铜芯聚氯乙烯绝缘聚氯。
同轴射频电缆：同轴射频电缆是最常用的结构型式。由于其内外导体处于同心位置，电磁能量局限在内外导体之间的介质内传播，具有衰减小，屏蔽性能高，使用频带宽及性能稳定等显著优点。目前，常用的有两类：50Ω和75Ω的射频同轴电缆。特性阻抗75Ω射频同轴电缆常用于，故称为CATV电缆，传输带宽可达1GHz，目前常用CATV电缆的传输带宽为750MHz。
对称射频电缆：对称射频电缆回路其电磁场是开放型的，由于在高频下有辐射电磁能，使衰减增大，并导致屏蔽性能差，再加上大气条件的影响，通常较少采用。对称射频电缆主要用在低射频或对称馈电的情况中。商丘SYV视频电缆75-15-41欢乐
GCr15SiMo钢抗回火性能明显优于GCr15SiMn钢和GCr18Mo钢。GCr15SiMn钢和GCr15SiMo钢常规马氏体淬回火后的冲击韧度与断裂韧度基本相当，GCr18Mo钢的等温淬火贝氏体组织的冲击韧度和断裂韧度明显优于GCr15SiMo钢和GCr15SiMn钢。在常规马氏体淬回火条件下，GCr15SiMo钢的接触疲劳寿命高于GCr15SiMn钢。GCr15SiMo钢与GCr18Mo钢的等温淬火下，其全下贝氏体（BL）组织的疲劳寿命高于M/B复合组织的疲劳寿命。
螺旋射频电缆：同轴中的导体，有时可做成圈状，借以增大电缆的电感，从而增大了电缆的波阻抗及延迟电磁能的传输时间，前者称为高阻电缆，后者称为延迟电缆。如果螺旋线圈沿长度方向卷绕的密度不同，则可制成变阻电缆。
实体绝缘电缆：在这种电缆的内外导体之间全部填满实体高频电介质，大多数软同轴射频电缆都是采用这种绝缘型式。
空气绝缘电缆：电缆的绝缘层中，除了支撑内外导体的一部分固体介质外，其余大部分体积均是空气。其结构特点是从一个导体到另一个导体可以不通过介质层。空气绝缘电缆具有很低的衰减，是超高频下常用的结构型式。
本规范以YD/T标准为准。概述电缆用全色谱的实心聚乙烯绝缘，经过绝缘的导线被扭绞成线对，由线对绞合成缆芯。电缆缆芯外加上适宜的缆芯包覆材料，涂塑铝带屏蔽层及上面印有按计数顺序表示的长度标志的黑色外扩套后方能完成。
Theproductissuitableforuseinpowerdistributionlinesorfixedinstallationswithratedpower-freandincluding0.6/1kV.使用特性•工频额定电压U0/U:450/750V。
Product introduction - plastic insulated control cable | | KVV control cable KVVR control cable | | KVVP control cable shielding control cable KVVP | | KVVRP shielding control cable KVVP2 control cable | | KVVP2-22 control cable KVV22 sheathed control cable | control cable KVV | control cable KVVR | control cable KVVP | control cable KVVRP | control cable KVV22 product details: plastic insulated control cable: GB9330-88 scope of application: This product is fit for ac rated voltage up to and including 450/750 control, monitoring circuit and protection circuit using features: 1, the conductor long-term allowed working temperature is 70 ℃. 2, when laying environment temperature 0 ℃ or higher. 3. Minimum bending radius: 4. For unarmored cable, it shall be no less than 6 times the outer diameter of the cable. 5. The cable with armor or copper shield shall not be less than 12 times the outer diameter of the cable. 6. The soft cable with screen shielding structure shall not be less than 6 times the outer diameter of the cable.
Flexible cable RVVT, RVV RVVTP resistance to bending RVVPT RVVT detail TRVV flexible cable, cable RVVTP RVVPT bending resistant cable type: TRVV connection and control using the flexible cable, widely used in dry or wet indoor, reciprocating bend free mobile no compulsory pull drag chain system. Such as machine tool processing e, logistics delivery system, port machinery, complete e installation engineering. Product features: according to customer re, color core or coding core. High PVC mix is adopted to reduce the re of cable outer diameter for installation space. The designed cycle bending life is 5 million times, and the actual use has exceeded 6 million times. Cable structure: conductor: using multi-strand fine ground and other fine twisted into a bundle conductor oxygen-free copper wire, conform to DIN VDE 0295 grade 6 insulation: high PVC mixture color: color line core or coding line core 3 core + yellow or green conductor sheathed: high PVC mixture color: black, grey, orange electrical characteristics: rated voltage U0 / U < 0.5 was 300/300 V p o. 5 was 300/500 V test voltage: 3000 V U meet DIN VDE 0281 part 2 temperature range: ℃ mobile installation: fixed installation: - 5 ℃ ~ + 70 ℃ and 30 ℃ ~ + 70 ℃ when continuous movement, the minimum bending radius: 7.5 x cable diameter
半空气绝缘电缆：这种结构型式是介于上述两种之间的一种绝缘型式，其绝缘也是由空气和固体介质组合而成，但从一个导体到另一个导体需要通过固体介质层。
射频电缆按绝缘材料分类：塑料绝缘电缆、橡皮绝缘电缆及无机矿物绝缘电缆。
射频电缆按柔软性分类柔软电缆、平软电缆及刚性电缆等。射频电缆按传输功率大小分类0.5千瓦以下的低功率、0.5—5千瓦率、5千瓦以上的大功率电缆。低衰减、低噪音、微小型及搞稳相电缆等。射频电缆的衰减与导体，介质，结构尺寸，工艺水准和工作的频率都有关。
国内空气压缩机行业产量更是以每年2%以上的速度增长。用螺杆式压缩机取代活塞式压缩机是动力用空气压缩机发展的必然趋势。行业统计数据显示的螺杆式空压机成为空压机的主力军，但1立方一下，还需要更多的路程。与产量的快速增长相对应的是下游行业对空气压缩机需求的增加，28年以来中国空气压缩机行业市场需求总体呈稳步上升态势，213年空气压缩机行业销售收入为437.8亿元，同比增长21.37%;行业工业销售产值达416.9亿元，同比增长22.%。
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