MHYV1X4X7/0.28矿用通讯线缆直销平湖欢迎进入双屏蔽计算机电缆DYVPVSP5X2X0.2吟诵
ZA-RV铜芯阻燃聚氯乙烯绝缘软电缆。ZA-RVV铜芯阻燃聚氯乙烯绝缘聚氯乙烯护套软电缆。ZA-RVV22铜芯阻燃聚氯乙烯绝缘钢带铠装聚氯乙烯护套软电缆。WDZA-RY铜芯阻燃无卤低烟聚烯烃绝缘软电缆。
Insulation resistance: each conductor and the rest of the grounding wire core, the control cable is more than 10000 m Ω. Km, more than 3000 m Ω HYAT cable. Km.
全塑市话电缆主要电气性能：1.直流电阻:20℃0.4≤148?/km0.5≤95.0?/km0.6≤65.8?/km0.8≤36.6?/km2.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充气电缆大于10000MΩ.km填充式电缆大于3。
电缆型号、名称、规格及用途型号名称规格用途MKVV铜芯聚乙烯绝缘聚氯乙烯护套阻燃矿用控制电缆（2-14)**(0.75-2.5)铺设在室内、电缆内、管道等固定场合MKVV22铜芯聚乙烯绝缘聚氯乙烯护套钢带锴装阻燃煤矿用控制电缆(7-61)*(0.75-1.5)(。
填充式铠装通信电缆型号HYAT53WDZ-HYAT53ZRC-HYAT53。铠装通信电缆型号HYA22HYV22HYAT22HYY23HYYT23HYA23HYAT23。钢丝铠装通信电缆HYA33HYAT33WDZ-HYA53HYY33HYYT33HYY33。
在检验工作中，还存在电梯坠落、零件坠落等各种安全隐患，极有可能造成安全隐患等。3机械伤害危险在电梯检验工作中，常常因机械伤害而引发各种安全问题，而机械伤害的危险源涉及非常广泛，在检验工作中任何可移动、旋转部件均能够给检验人员带来机械伤害，比较常见的安全问题就是撞击、咬人、剪切及挤压等。“咬人”伤害；在检验电梯的钢丝绳时，就要采用游标卡尺对钢丝绳直径进行测量，还要近距离查看钢丝绳，观察绳子是否存在断股断丝，挡绳装置是不是齐备，在观察过程中假如没断电就突然启动，钢丝绳极有可能将手指拉入曳引轮，从而将手指咬伤，造成伤害。
产品描术：RS-485通讯电缆特性阻抗为120欧姆，导体为2*24AWG多股绞合镀锡铜丝，PE绝缘介质，由铝箔/聚酯复合带****覆盖+镀锡铜丝90%覆盖共2层屏蔽，附有独立接地导线，工业灰色PVC外护套。
铠装双绞屏蔽型电缆ASTP-120Ω（forRS485&CAN）onepair18AWG，电缆外径12.3mm左右。可用于干扰严重、鼠害频繁以及有防雷、防爆要求的场所。使用时，建议铠装层两端接地，最内层屏蔽一端接地。
电缆的屏蔽要求是根据不同场合分别采用：对绞组合屏蔽、对绞组成电缆的总屏蔽、对绞组合屏蔽后总屏蔽等方法。屏蔽材料有圆铜线，铜带、铝带/塑料复合带三种。屏蔽对与屏蔽对具有较好的绝缘性能，电缆在使用中若屏蔽对屏蔽对之间出现电位差时，不会影响信号的传输质量。
People sincere is our life, never satisfied is our eternal, not the biggest, but the best is our concept!
聚氯乙烯电线型号、名称型号名称额定电压（V）芯数标称截面(mmIEC01(BV)一般用途单芯硬导体无护套电缆450/75011.5～IEC02(RV)一般用途单芯软导体无护套电缆450/75011.5～IEC05(BV)内部布线。
450/750 v polyvinyl chloride insulated control cable, applicable to dc and ac 50 hz, rated voltage 450/750 v power plants, power plants, factories, mines, ports and petrochemical enterprises such as long-distance control loop, as a connecting line between electrical instrumentation and automation instrumentation, phoresy all kinds of electric energy role, make the whole electric, reliable operation.
在对于电力系统中的双母线接线形式的电气主接线中，充分利用隔离开关的优势，将和母线相连接将电气设备，从一组切换到另一组上去，降低了电力工作的难度和工作量。如拉、合电容电流不超过5A的空载线路，拉、合电流小于2A的空载变压器等功能。基本要求应用于电力设备中的隔离开关将电力设备分开后应该有明显可见的的电源断开点，能够工作人员清晰的鉴别大型电力设备的电源是否与电网隔离，能够真正的保证设备的安全；同时需要注意的是，电源和电网断开点之间应该有安全的的绝缘距离，保证设备在过电及电流闪络的情况下，不会发生意外状况威胁到工作人员的人身安全，也要保证机器设备不会被一瞬间的闪络损害，影响电力系统正常运行。
DJYP2VR polyethylene insulation on stranded copper tape shielding PVC sheath soft
Computer shielded cable; Purpose: high voltage insulation with small interface constant. Use to ground, and the screen, the total screen (or three quad twisted, group screening, group screen a total screen), such as structure form, with a small dielectric loss, the transmission ability is strong, resistant performance is good wait for a characteristic, can reliable transmission weak analog or digital, can be widely used in electricity, metallurgy, petroleum, chemical, textile sites detection and control of the door or by computer automation instrumentation, and general industrial computer. Relevant technical indicators: reference BS5308 IEC189 and British second, product code 1 and code the DJ - (series code) electronic computer shielded cable Y - (insulation code) high-pressure polyethylene F - (insulation code) fluoroplastic V - (sheath code) polyvinyl chloride (R - said many strands of soft wire core P - (block code) copper mesh shielding P1 tin plated copper mesh shielding P2 copper tape screened P3 aluminum-plastic composite membrane shielding for example 1:3, product specifications order 7 (14) to 1.0 was computer shielded cable can be represented as: (1) total shielding DJYVP7 * 2 * 1.0mm2 (2) partial shielding multiple strands of soft line DJYPVR7 * 2 * 1.0mm2 (3) total shielding type DJYPVP7 * 2 * 1.0mm2 Type (1) packet shielding DJYPV3 x 3 x 0.75 was (group 2) screen a total screen DJYPVP3 x 3 x 0.75 was three, model name and use range model name using range DJYVPDJYPVDJYPVP total shielding polyvinyl chloride polyethylene insulating sheath computer cable shielding polyvinyl chloride polyethylene insulation group sheathed electronic computer cable shielding total shielding polyvinyl chloride polyethylene insulation group sheathed electronic computer cable 1, fixed for laying indoors, in cable trench or pipe 2, cable long-term working temperature: - 20 ℃ + 65 ℃, the cable laying temperature is lower than 0 ℃, the bending radius should not less than 10 times of cable diameter DJYVPR DJYPVR DJYPVRP total shielding polyvinyl chloride polyethylene insulating sheath computer with a soft cable shielding polyvinyl chloride polyethylene insulation group sheathed computer with a soft cable shielding total shielding polyvinyl chloride polyethylene insulation group with a soft cable sheath computers shows that: (1) flame retardant cable (oxygen index greater than 30) need to add code "out" in front of the model. For example, zr-djypv zr-djypvp et al. (2) armored (steel belt armored) cables need to add code "22" in the lower right corner of the model, such as: DJYPV22 djypvpppvp22, etc. The cable is mainly used for ac or dc 300V or below and can work normally when 500V or below.
A类阻燃性能优于C类阻燃性能。使用特点额定电压U0/U为450/750V。电缆导体的长期允许工作温度为70℃。电缆的敷设温度不低于0℃。推荐的允许弯曲半径无铠装层的电缆，应不小于电缆外径的6倍。有铠装、铜带屏蔽结构的电缆，应不小于电缆外径的12倍。
DJYP2V(R)P2聚乙烯绝缘铜带绕包分屏总屏聚氯乙烯护套计算机用屏蔽(软)电缆。DJYV(R)P3聚乙烯绝缘铝塑复合带绕包总屏聚氯乙烯护套计算机用屏蔽(软)电缆。DJYP3V(R)聚乙烯绝缘铝塑复合带绕包分屏聚氯乙烯护套计算机用屏蔽(软)电缆。