使用条件1：使用温度（℃):-40～+602:相对温度:40℃时达98%3:安装敷设温度不低如:-15℃4:充许最小弯曲半径:室内不小于5倍,室外10倍结构1:镀锡铜丝线芯2:聚氯乙烯绝缘3:薄膜绕包/镀锡铜丝编织网屏蔽4聚氯乙烯护套额定电压:300V/300V300V/500V采。
低烟无卤电缆是本公司参照法国标准RCCE及NF系列标准、国家标准GB/T18380、GB/T19216、GB/T17651、GB/T17650及****进行生产。
低烟无卤电缆本产品适用于额定电压0.6/1KV及以下的电力线路中作输送电能用。
适用于穿管或电缆槽、架、沟内敷设。
标称截面(mm2)20。
C时导体电阻RVVZ;特点：交换机动力电缆传输专用电缆，具有柔软、易弯曲、阻燃等优点。
VV-不阻燃，硬动力电缆，不易弯曲，适用于固定敷设。
这些都促使机场灯在品种、功能、结构和能耗等方面不断地完善起来。
飞机驾驶员在向着大型机场着陆的过程中，依次看到下列机场灯发出的灯光：①机场灯标。
装在机场内，发出白、绿相间的强烈闪光。
每个机场一个，用以标明机场所在。
| mine shaft communication cable | inclined well and level roadway communication line | mine shaft or inclined well communication line execution: mt8 brief description: name code:? Communications cables for coal mines MH(HU) copper core Omitted polyethylene insulation Y? Aluminum - polybonded layer A? Poly inner sheath Omit? Blue flame retardant polyurethane sheath V? Steel wire armored blue flame retardant PVC outer sheath 32? Main models, names, specifications and USES :MHYV (HUYV)? Mine polyurethane, flame retardant polyurethane sheath communication cable? 2-5? 7/0.28? Used for street level,? Inclined alley and mechanical adit???? Coal safety certificate no. : 200550024126-2005mhy (HUY)? Mineral polyurethane, aluminum/polyurethane sheath, flame retardant polyurethane sheath communication cable? 10-100? ? For use as communication lines in inclined Wells and alleys. Coal safety certificate no. : mhya32 (HUYA32)? Mineral poly-insulation, aluminum/poly-bonded layer, galvanized steel wire armor, flame retardant poly-chloride sheath communication cable? 10-100? ? Used as a communication line in a coal mine shaft or inclined shaft. Coal safety certificate no. :
交流电对于广大的地球村上的人们来说并不陌生，它的最大好处就是能够实现远距离的特高压电路的输送。
交流电之称之为交流电，是因为它的电流的方向和大小随着时间的变化而断的发生变化，其函数表达式为i=ImaxSinωt，其中i为某一时刻的电流值。
Imax为交流电的峰值，ω为交流电在磁场转动的角速度，ωt为交流电在磁场中转动的弧度，如果t为交流电变化的一个周期的话，那么ωt就等于2π（假设此交流电的初相位为0），则此时的交流电的瞬时电流值就为0。
使用特性：1、额定电压：交流Uo/U；450/750V2、工作温度：序号1～4-60～+200℃序号5～14-15～+105℃3、绝缘电阻（20℃）不低于50MΩ•km4、导体线芯直流电阻（20℃）符合GB规定5、无铠装电缆允许弯曲半径不小于电缆外径的6倍，铠装电缆允许弯曲半径不小于电缆外径的12倍。
仪器介绍耐油屏蔽电缆RVVYP系列RVVYPZR-RVVYPZR-RVVYP22额定电压450/750V及以下聚氯乙烯绝缘电缆二芯或多芯屏蔽和非屏蔽软电缆一、执行标准：GB5023.7-1997二、用途：适用于交流额定电压300/500V及以下电器仪表，电子设备及自动化装置用。
Sheathed control cable products use feature: the cable conductor of long term working temperature should be allowed no more than 70 ℃. When the cable temperature under installation should not below 0 ℃, when laying bending radius should not less than 10 times of cable diameter. The cable with armor layer or copper band shielding structure shall not be less than 12 times the outer diameter of the cable.
Low-smoke halogen free cables should be used in subway, underground, control centers, schools, shopping malls, office buildings and other places. Belongs to the new environmental protection wire and cable.
Sheathed control cable products use feature: the cable conductor of long term working temperature should be allowed no more than 70 ℃. When the cable temperature under installation should not below 0 ℃, when laying bending radius should not less than 10 times of cable diameter. The cable with armor layer or copper band shielding structure shall not be less than 12 times the outer diameter of the cable.
Specializing in the production for the telecommunications, computing facilities, instruments and meters connect with wire and cable series product -- -- -- -- -- - RVVP get coal RVV series of products: coal mine product safety sign - Ann symbol - Ann logo certification coal - coal Ann query -uery on a coal production license MA for authentication with mining products safety sign AnBiao syndrome, MA certificate, coal, flame retardant communication cable MHYV MHJYV MHYBV MHYA32 MHYYV MHYY32 flame retardant signal cable: MHYVR MHYBV MHYV32 MHYVR MHYVP MHYBV MHYVR32 coal mine fire retardant control cable: HYA22 ZRC manufacuring HYA ZRC - HYAT ZRC - HYAT23 manufacuring HYA HYA23 HYA53 HYAT HYAT23 HYAT53 HYAC HJVV HPVV HPVV22 PYV HYV AZVP HYV22 PYV22 control cable: KVV KVVP kvvv22 kvp2 kvp2 kvp2-22 KVVR KVRP system dedicated cable HAVP KAVP HAV Your satisfaction - our unremitting pursuit!
主电路一般用粗实线画在图样的上方或左方，它与三相电源相连，连接负载，允许通过大电流，受辅助电路的直接控制；辅助电路是通过较弱电流的控制，用细实线画在图纸的下方或右方，控制主电路动作的。
看图步骤阅读产品使用说明书在看图之前应了解设备的机械结构、电气传动方式、对电气控制的要求、电动机和电器元件的大体布置情况以及设备的使用操作方法，各种按钮、开关、指示器等的作用。
还应了解使用要求、安全注意事项等，对设备有一个全面完整的认识。
RVVZ cable, RVV cable, RVVP cable, ZRVVR cable, ZRYJVR cable VVP shielding cable implementation standard jbRVVP shielding cable product introduction: RVVP shielding cable, rated voltage 300V/300V. Some core from 2 to 24 core, according to the national standard color separation between more than two core twisted into line, direction of outer stranded for right-handed, soft rounded oxygen-free copper wire or tin plating oxygen-free copper wire shielding, widely used in instruments, meters, building intercom, monitoring, monitoring control installation. Implementation standard: jbproduct long-term mass supply packaging specification 200 m/roll; 500 meters/anaerobic copper coil wire core material number 1 ~ 24 core sheath material PVC/PE wire 26 largest diameter (mm) nominal section 0.12 ~ 2.5 (was) RVVP RVVP shielded cable core: twisted into cable, insulated conductor (PP) RVVP winding and polyester film screened cable sheath: black/white PVC shielded cable USES: used in building automation control system, anti-theft alarm system, fire control system, three table from copying systems, communications, audio, sound system, meter, electronic e and automation devices such as anti jamming circuit connection.
ia-K2YVR本安型PE绝缘PVC护套二芯绞合屏蔽控制软电缆适用于要求柔软的场合。
适合于具有防爆保护要求及其他恶劣环境下集散系统、自动化检测系统中作传输线，安全性能明显高于一般DCS电缆和计算机控制电缆。