挤包绝缘电力电缆一、产品适用范围适用于额定电压0.6/1kV动力装置及电力线路中传输电能用。
多芯电缆阻燃特性GB/TA或B类四、型号、名称及使用条件表2Table2型号名称使用条件VV聚氯乙烯绝缘聚氯乙烯护套电力电缆敷设在室内、电缆沟、隧道内、管道中,电缆不能承受机械外力作用。
Total shielding DJYVPDJYPVDJYPVP polyethylene insulation PVC sheathed electronic computer cable group polyethylene insulation shield PVC sheathed electronic computer cable polyethylene insulation group total shield PVC 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 not lower than 0 ℃, the bending radius should not less than 10 times of cable diameter DJYVPR DJYPVR DJYPVRP polyethylene insulation total shield PVC sheathed computer with a soft cable group polyethylene insulation shield PVC sheathed computer with a soft cable polyethylene insulation group total shield PVC sheathed computer with a soft cable 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. This cable is mainly used for ac or dc 300V and below working system, it can work normally when 500V or below.
塑铜线类型BV线又分为:ZR-BV和-BV:铜芯聚氯乙烯绝缘阻燃电线:绝缘料加有阻燃剂,离开明火不自燃。
NH-BV:铜芯聚氯乙烯绝缘耐火电线:正常着火情况下还可以正常使用。
BV线学名:铜芯聚氯乙烯绝缘电线四、耐高温控制电缆氟塑料绝缘耐高温控制电缆用途:氟塑料绝缘耐高温控制电缆适用于交流额定电压450/750V及以下控制、监控回路以及电器仪表的连接线和自动控制系统的传输线。
耐火电缆/NHVV耐火电力电缆,耐火聚氯乙烯绝缘电缆适用于地下铁道、地下商场、大型购物中心、高层建筑等人口稠密、通风受限的场合。
适用范围本产品适用于工频额定电压0.6/1kV及以下配电线路或工业装置中有耐火要求的固定敷设场所使用。

控制电缆包括kvv电缆,kvvr电缆,zrkvv电缆,zrkvvp电缆,kvvp电缆,kvvrp电缆,kvvp2电缆,kvvp2-22电缆,nhkvv电缆,zrkvvrp电缆,kvv22电缆,zrkvv22电缆。
1开关电源模块的电磁干扰一直是一个重要解决点,从原理上来讲电磁干扰主要来自于两个方面,分别是传导干扰和辐射干扰。
2传导干扰由于电路中寄生参数的存在,以及开关电源中调频开关器件的开通与关断,使得开关电源在市电交流输入端产生较大共模干扰和差模干扰。
3辐射干扰由于导体中电流的变化会在其周围空间中产生变化的磁场,而变化的磁场又产生变化的电场,这一变化电流的幅值和频率决定其产生的电磁的大小以及其作用范围。
电缆的型号:额定电压Uo/U为450/750V或0.6/1KVZR-KVVZR-KVVPZR-KVVP2ZR-KVV22ZR-KVV32ZR-KVVRZR-KVVRPZR-KVVP-22ZR-KVVP2-22ZR-KYJV32ZR-KYJV92ZR-NHKYJV32/92适用范围。
每个单位都采用规定色谱的扎带绕带100对及以上电缆加有1%的备用线对,但最多不超过10对;8.缆芯包带:缆芯外包覆非吸湿性、非吸油性的绝缘带;9.电缆屏蔽:用轧纹(或不轧纹)双面涂塑铝带纵包于缆芯包带之外,两边搭接粘合;10.电缆护套:黑色低密度、中密度或高密度聚乙烯;11.识别标记:电缆外表面打印。
我厂最新研制开发出自承式组合电缆在SYV75-5+RVV+RVVP电缆基础上,电缆另加一根自承式钢丝,使电缆拉力大大增强。
主要技术性能:1)额定电压:交流50Hz,500V。
2)试验电压:交流50Hz,2000V。
额定电压:300V/300V 低烟无卤电缆低烟无卤电缆,是指不含卤素(F、Cl、Br、I、At)、不含铅镉铬汞等环境物质的胶料制成,燃烧时不会发出有毒烟雾的环保型电缆。
电缆的无卤低烟、低卤低烟特性,当火灾发生时,蔓延速度慢,烟浓度低,可见度高,有害气体释放量小,便于人员撤离。

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 - AnBiao query 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!
Railway cables are suitable for transmission under rated voltage ac 500V or dc 1000V and below. Product name, model, specification and scope: plastic insulation and polyurethane sheath railway cable PTYAH; PTYA; PZYA; PTYV; PTYY,; PTY22; PTY23; (PZY02; PZY03; PZY23 PZY22) 1/0.8mm (1/1.0mm) 2-48 core is suitable for railway communication, fire alarm, telegraph and other automatic devices with rated voltage ac 500V or dc 1000V or below. Poly (PVC insulation composite sheath steel tape armoured polyvinyl chloride sheathed PTYA23 PTYA22 PTY23 PTY22 PTYAH23 PZYA23 PZYA22 PZY23 PZY22 0.8 mm (1/1.0 mm) 4-61 core is fit for ac rated voltage 500 v or dc voltage 1000 v and below transfer audio and fixed laying railway and group control automation assembly line, can transport railway group general automatic letter, also can transmit the audio frequency shift automatic block and business calls. ? 4, using features: cable in - use under 40 ℃ to + 50 ℃. Cable conductor long-term working temperature shall not exceed 70 ℃. Ordinary sheath of the cable laying under the temperature below 5 ℃, resistance to sheath for - 10 ℃. The bending radius shall not be less than 15 times of the outer diameter of the cable (when laying) and shall be applicable to any horizontal difference
下图是数字万用表的档位和量程,使用数字万用表进行测量时,应根据测量对象选择相应的档位,根据测量对象估计测量的范围,选择合适的量程。
,要测试9V电池电压,可选择“直流电压20V”档位。
如果无法估计测量对象的大小,则应先选择该档位的最大量程,根据显示情况逐步减小量程,直至能够准确显示读数。
选择测量量程时,应尽量使LCD显示屏中显示较多的有效数字,以提高测量精度。
,测量1.5V电池电压,选择“直流电压”的200V、20V、2V档均可测量,2V档显示的有效数字最多,测量精度较高,如下图所示。
●产品品牌:天联●执行标准:企业标准●产品用途变频电缆主要用于变频电源和变频电机之间连接用的电缆,以及额定电压1KV及以下的输配电线路中,作输送电能用。
●适用范围: 适用于干燥或潮湿的室内,无强应力缓释或强制引导的自由连续往复运动下的安装,工业使用环境下的弯曲场合,如木工机械、机床加工设备、物流输送系统、起重机场合等,对电磁屏蔽抗干扰好。
Product standard: YD/ t1173-2001