This product is suitable for electronic computers with rated voltage of 500V or below, and cables for automatic connection, which have high re for protection. The k-type B low-density polymer with anti-oxidation property is adopted for the insulation of cable ground core. High insulation resistance, good voltage resistance, low dielectric coefficient and low dielectric loss temperature and variation of the medium can not only meet the re of transmission performance, but also ensure the service life of the cable. ? The cable is shielded for cross - circuit interference and external. The shielding re of cables are respectively adopted according to different conditions: the total shielding of the hinged cable, the total shielding of the hinged cable, and the total shielding of the hinged cable after the hinged cable is shielded. Shielding materials are round copper wire, copper belt, aluminum belt/plastic composite belt three. The insulating property of shielding pair and shielding pair. The transmission of the cable will not be affected if there is potential difference between shielding pair and shielding pair in use.
产品具有结构紧密、性能稳定、安装方便，广泛用于通讯、导航、电子对抗、预警系统、海洋勘探、各种测试设备用综合电缆。
可根据用户要求将多根信号线、电源线、屏蔽线、同轴射频电缆等组合成一根可带总屏蔽的组合电缆。
Video transmission usually adopts direct modulation technology and takes the form of baseband (about 8MHz bandwidth). The common transmission medium is coaxial cable. Coaxial cable is specially designed for transmitting video, and its loss, image distortion and image attenuation are all relatively small, which can well complete the task of transmitting video.
4.工作电容：平均值522nF/km5.远端串音防卫度：150kHZ时指定组合的功率平均值大于69dB/km本安型信号控制电缆的详细资料：产品特点:1、电缆型号、名称及使用范围型号名 称使用范围ia-K2YV本安型PE绝级、PVC护套二芯绞合屏蔽控制电缆固定敷设在室内、电缆沟或管道中。
IA-DJVPVP IA-DJYPVP IA-DJYJPVP 本安型、编织分对屏蔽、总屏蔽（铜丝或镀锡丝）。
IA-DJVP2VP2 IA-DJYP2VP2 IA-DJYJP2VP2 本安型、铜塑复合膜分对屏蔽、总屏蔽 。
三极管按材料分有两种：硅管和锗管。
而每一种又有NPN和PNP两种结构形式，但使用最多的是硅NPN和锗PNP两种三极管，（其中，N表示在高纯度硅中加入磷，取代一些硅原子，在电压刺激下产生自由电子导电，而p是加入硼取代硅，产生大量空穴利于导电）；两者除了电源极性不同外，其工作原理都是相同的，下面仅介绍NPN硅管的电流放大原理。
对于NPN管，它是由2块N型半导体中间夹着一块P型半导体所组成，发射区与基区之间形成的PN结称为发射结,而集电区与基区形成的PN结称为集电结,三条引线分别称为发射极e（Emitter）、基极b(base)和集电极c(Collector)。
—技术参数执行标准:GB/TGB/T特性阻抗：120±15Ω最小弯曲半径：≥电缆外径15倍工作温度：-40℃至70℃—产品应用本产品适用于交流额定电压300V及以下照明、电动工具等所必须的电源，还能传输各种控制信号,直流电压1000V及以下传输音频信号，以及固定敷设的铁路。
IA-DJVPV22 IA-DJYPV22 IA-DJYJPV22 本安型、编织分对屏蔽（铜丝或镀锡丝）、铠装 。
DJYV(R)P聚乙烯绝缘铜丝编织总屏聚氯乙烯护套计算机用屏蔽(软)电缆。
DJYPV(R)聚乙烯绝缘铜丝编织分屏聚氯乙烯护套计算机用屏蔽(软)电缆。
二：产品执行标准Q/HHTZH002.3(等效采用英国BS5308标准)阻燃性能试验执行GB标准三：使用特性1．交流额定电压：U0/U300/500KV2．最高工作温度：聚乙烯绝缘不超过70℃交联聚乙烯绝缘90℃低烟无卤阻燃聚烯烃70℃低烟无卤阻燃交联聚烯烃90℃和125℃两种3．最低环境温度：聚氯。
ZR-YJV32ZR-YJLV32ZR-YJV33ZR-YJLV33ZR-YJV42ZR-YJLV42ZR-YJV43ZR-YJLV43交联聚乙烯绝缘阻燃聚氯乙烯/聚乙烯护套钢丝铠装动力电缆敷设在高落差地区，电缆能承受机械外力作用及相当的拉力。
、学校教学设备传输电线电缆、智能数码保安监控系统线缆、电子机房工程电缆、闭路电视监控系统线缆、图像网络传输系统线缆、背景音乐系统线缆。
RVVZ高阻燃电缆适用于环境温度比较高的场所。
型号：RVVZ单芯、多芯。
矿用控制电缆电气性能：1、额定电压450/750v2、电缆导体的长度允许工作温度为70摄氏度3、电缆的敷设温度应不低于0摄氏度，推荐的允许弯曲半径；4、无铠装层的电缆，应不小于电缆外径的6倍5、有铠装或铜带屏蔽结构的电缆，应不小于电缆外径的12倍。
下图为极异性磁铁与各向同性磁铁的步进电机在12V额定电压下的阻尼特性的比较。
据此，定位时间方面，使用极异性磁铁的稳定时间长。
但若降低驱动电压（降低为8V），则如下图所示，极异性磁铁的稳定时间变短。
磁铁强的电机调整激磁电压（电流）时，稳定时间将变小。
上图为几种电流的暂态特性。
电流在转子转速大时会减小，此为受到反电势的影响所致。
各向同性磁铁与极异性磁铁的周期比较，后者变短，振荡次数相同约为4，后者的稳定时间变短。
HYAT23 armoured communication cable USES: armoured communication cable mechanical protective layer can be appended to the structure of the cable, with the mechanical strength of the cable, antierosion capability, is vulnerable to mechanical and vulnerable to erosion area and design of telephone cable. Any kind of laying can be adopted, which is more suitable for direct buried laying in rock area. Armored communication cable structure: 1. Basic cable: any filled and unfilled cable with single sheath or double sheath structure. 2. Armored communication cable mechanical protection layer: type 53 adopts 0.15mm thick corrugated steel belt, which is longitudinal wrapped on the basic cable and overlapped on both sides. The surface of the steel belt is coated with plastic to prevent corrosion and water intrusion. The type 23,22 has similar performance with double steel band wrapping. 3. Armored communication cable sheath: black high-molecular weight low-density polyurethane or polyurethane sheath. Sheath thickness may depend on the basic cable outer diameter.
5、生产范围型号额定电压V芯数标称截面mm2227IECRV300/50011.IECRVB300/30020.IECRVS300/30020.3-0.25227IECRVV300/3002-300.5-6.。