Direct selling by the manufacturer; "HYA communication cable /25 logarithmic cable/three types of line/line/cable; 25 large logarithmic cable HYA(1000 to 1200 to 1400 pairs)X0.4 line diameter low smoke low halogen burning large logarithmic cable wdz-hya wdz-hya53; WDZ HYA23 flame retardant with large logarithmic wire type ZR - manufacuring HYA, ZR - HYAC, ZR - HYAT, ZR - HYA53, ZR - HYAT53, ZR - HYV, ZR - HYA23, ZR - HYAT23, ZR - HYA22, ZR - HYAT22 multi-cores cable is 1000 to 1200 to 1400 to 1600 to 1800 to 2000 to 2400 manufacuring HYA multi-cores cable line by 0.4 0.5 0.6 0.7 HYAT communication cable (HYAT600 * 0.4)
执行标准:GB/T13879.93YD/T,适用范围：本产品适用于市内通信用。
HYA铜芯实心聚烯烃绝缘铝塑粘结综合护套市内通信电缆管道。
HYAC铜芯实心聚烯烃绝缘铝塑粘结综合护套自承式市内通信电缆架空。
SYV视频线、SYWV电视天线、RVVP屏蔽线、RVV护套线、AVVR多芯信号线、多芯音频线、RVSP双绞屏蔽线、各种屏蔽线缆、各种护套电源线、五类网络线、超五类网线、同轴电缆、各种监控线缆、各种弱电线缆 、各种高压电缆、各种射频、视频、同轴电缆、多芯视频电缆、多芯音频线、各规格、音响线、各种话筒线。
LJLGJ铝绞线及钢芯铝绞线用于架空固定敷设。
-=特种电缆=-ZR-X阻燃电缆敷设在对阻燃有要求的场所，GZR电缆敷设在阻燃要求特别高的场所。
GZR-X隔氧层阻燃电缆WDZR-X低烟无卤阻燃电缆敷设在对低烟无卤和阻燃有要求的场所，GWDZR电缆敷设在要求低烟无卤阻燃性能特别高的场所。
Product standard: YD/ t1173-2001
上式（T2=IΦsinδ）表示前文《PM型电机转矩的产生及负载角》及文《HB型电机的转矩与负载关系》的图中转矩，如增加负载，δ也增加，至π/2时为其最大值。
以上细分步进驱动方式是降低振动极为有效的手段。
此时，**磁铁所产生的磁通分布假定为正弦波。
HB型步进电机的转子在dq轴方向分离成两个磁通，并且磁极上有很多的齿，容易产生高次谐波，除式T2=IΦsinδ所示的值外，还含有其他频率成分的磁场。
如上所述的细分步进驱动，降低振动的要点如下：第细分步进越是在低速运行时效果越好。
Flame retardant cable related:? The cables used in electrical equipment are used as the connection lines of electrical equipment, with internal wiring
我国国家标准GB12666.6（等同IEC331）将耐火试验分A、B两种级别，A级火焰温度950~1000℃，持续供火时间90min，B级火焰温度750~800℃，持续供火时间90min，整个试验期间，试样应承受产品规定的额定电压值。
The cross section of the control cable is generally no more than 10 square meters, and the power cable is mainly used to transport power, which is generally large. Due to the above all when it comes to the reason, the specifications of the power cable can generally larger, to 500 square feet (normal manufacturer can produce range), again big cross section of the general factory is relatively less, you can do and control cable section generally small, generally not more than 10 largest square, tell from some cable, power cable according to the request of power grid, most commonly for five core, and control cable transmission control signal, some more, according to the standard terms of more than 61 core, but also can produce according to user requirements.
This is the flame retardant standard for bundles of cables. According to the test regulations, the 3.5m long cable samples are fixed with iron wire on the trapezoid test frame, and the number of samples is determined according to the different classification requirements of non-metallic materials. The sample is hung vertically on the back wall of the furnace, and air is introduced into the furnace through the inlet on the bottom plate.
销售生产各类煤矿用阻燃通信电缆、矿用通讯电缆，矿用信号电缆，煤矿用阻燃信号电缆、矿用阻燃控制电缆，煤矿用阻燃通讯电缆、矿用电缆、矿用通信电缆、矿用信号电缆、矿用通讯电缆、矿用通信电缆，矿用控制电缆，矿用监控电缆、传感器电缆、信号电缆、本安防爆电缆、控制电缆、计算机电缆、阻燃电缆、耐火电缆，市内通信电。
Solid insulated unfilled cable is a kind of internal communication cable designed for the urban communication network. Transmission of audio 1 50k H Z and below analog signals and 2048Kbit/S and below digital signals. Under certain conditions, it can also be used to transmit digital signals over 2048Kbit/S. In a 30 ℃ ~ + 60 ℃ environment conditions, the cable to ensure long-term, reliable running. Structure.
2016年4月，某变电站主变检修恢复送电时，对1号主变充电时，未退出220kV线路（主二保护屏）“15LP14（PSL631A）充电过流保护投入”、“15LP2（PSL631A）充电及过流保护跳闸”两块压板，导致220kV断路器充电保护躲主变励磁涌流而造成220kV线路断路器跳闸。
2017年3月31日，某220kV变电站220kV断路器保护（CSC-122B）的“过流保护跳闸出口Ⅰ”和“过流保护投入”两个过流保护压板处于投入状态，在线路复电完成后，开展对侧电厂的主变复电时出现励磁涌流，过流保护（断路器保护过流Ⅰ段）动作出口跳闸。
RVVP是一种软导体PVC绝缘线外加屏蔽层和PVC护套的电缆.铜芯聚氯乙烯绝缘屏蔽聚氯乙烯护套软电缆电压300V/300V2-24芯用途：仪器、仪表、对讲、监控、控制安装适用范围：适用于交流额定电压300/300V及以下电器、仪表和电子设备及自动化装置等屏蔽线路执行标准■JB8734.5-1998■。
型号Type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-PVLV32-PYJLV。
可传输、电报、数据和图像等。
本电缆厂的通信电缆生产厂分布全国各地。
中国除生产长途型通信电缆和市内话缆外，光纤电缆和聚烯烃绝缘综合护层全塑市内话缆也有了长足的发展，国内不少厂家和科研单位从国外引进技术和设备开始生产。
MHYV mine resistance net line MHYV mine net line 4*2*0.5,MHYV mine net line 4*2*0.8 standard 568A: