HYA5X2X0.5线缆格恩施现货充足四芯电力电缆积极

HYA5X2X0.5线缆格恩施现货充足四芯电力电缆积极

Spin cassette XF5-273 communication cable transfer box, adopting advanced technology at home and abroad, in accordance with the international advanced standard production in the eighty s of cable wiring e, for the city, the town of telecommunication network backbone cable and wiring cable transfer. Features: 1. The connection jumper adopts rotary clamp-type connection and is sealed with silica gel on the metal clip, because it is not only reliable and durable, but also easy to operate and repair without stripping. 2. The wiring terminals in the handover box shall be arranged in 25 pairs as a basic unit, consistent with the basic units of the local telephone cables and marked with Numbers on the terminals to facilitate construction and maintenance. 3. The structure, arrangement and installation dimensions of the wiring modules are exactly the same as those of 3M products and can be used for each other. 4. The box body is treated by electrostatic spraying, beautiful and generous, with clear lines, good anti-corrosion and waterproof performance and long service life. Main technical parameters: the environment temperature: - 40 ℃ ~ + 65 ℃ atmospheric pressure: 70 ~ 106 kpa relative humidity: 95% or less is random ends and insulation resistance between terminals and ground > 5 x 104 Μ Ω. When connecting any two ends and any terminals and grounding to 1000V ac, there shall be no breakdown or flying arc in 1min. Contact resistance between wire and terminal < 5 x lO - 3 Ω.



　　3、产品型号规格及范围：产品型号规格范围使用场合MKVV,MKVVP,MKVVP20.5-10mm2,2-61芯适用于弱电控制系统或强电磁场干扰区MKVV22,MKVV200.5-10mm2,4-61芯MKVV32,MKVV300.5-10mm2,7-61芯MKVVR0.5-6mm2,2-61芯MK。

　　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。

　　缆心结构是将25个全色谱线对先绞合成10或25对基本单位，再将若干个基本单位(或子单位)绞合成50对或100对的超单位，然后由若干个超单位总绞合成缆心，构成大对数电缆。大对数电缆接续采用的模块为25对，也是基于以上原则。



　　因此，耐火系列电力电缆的整体性能优良可靠。 防火电缆的阻水性能符合IEC502-2规定。VV32VLV32VV33VLV33VV42VLV42VV43VLV43聚氯乙烯绝缘聚氯乙烯/聚乙烯护套钢丝铠装电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。

变频器多工作在高温、高湿、多粉尘、多腐蚀性气体及有振动的环境，并且变频器的使用年限长，未进行过大修保养。安装环境对变频器的影响如下：工作温度。变频器内部是大功率的电子元件，极易受到工作温度的影响，产品一般要求为0～55℃，但为了保证工作安全、可靠，使用时应考虑留有余地，控制在40℃以下。环境温度。温度太高且温度变化较大时，变频器内部易出现结露现象，其绝缘性能就会大大降低，甚至可能引发短路事故。腐蚀性气体。

　　产品标准：Q/NHN使用特性：•交流额定电压：UO/U450/750V•电缆长期允许工作温度：-25℃~+105℃及-60℃~+200℃两种.•耐火特性:符合GB12666.6-90规定:A类:火焰温度950℃-1000℃B类:火焰温度750℃-800℃燃烧时间90min燃烧时间:90min附加电压。

Precautions for installation of power cables: keep 2m distance when the cable is installed in parallel with the thermal pipe, and 0.5m should be maintained when crossing. The cable shall be installed at a distance of 0.5m in parallel or across other pipelines. When the cable is directly buried and installed, the direct buried depth of 1-35kv cable is less than 0.7m. When 10KV and below cables are installed in parallel, the net distance between them shall not be less than 0.1m and 10-35kv shall not be less than 0.25m. The distance of cross installation is not less than 0.5m. Cable laying temperature lower than 0 ℃, bending radius: multi-core cable or 15 (D + D), a single cable 20 or more (D + D), (D for cable diameter, D) for the conductor diameter. ? 6KV and above cable connector:? When installing the terminal head of the cable, the semiconductor electrical shielding layer must be stripped off. During operation, the insulation shall not be damaged. The shield end should be flat and the graphite layer (carbon particles) should be clean. (2) plastic cable end copper tape screened and armor must be good grounding, the short circuit also follow this principle, avoid unbalanced three-phase run ShiGang armoured end produce inductive electromotive force, and even "lighter" and sheath and other accidents. It is required to use my tinplate to braid copper wire for grounding lead. When connecting with the cable copper belt, it should be welded with chromium-iron tin. ? The shield of three-phase copper tape should be connected with ground wire respectively. Note that the shielded ground wire and steel armor ground wire should be separately drawn out and insulated from each other. The position of the welded ground wire should be as low as possible. Basic re for cable terminals and intermediate joints: a. good conductor connection; B. The insulation is reliable, and it is recommended to use irradiated cross-linked heat-shrinkable silicone rubber insulation materials; C. good sealing; D. sufficient mechanical strength to meet various operating conditions. The end of the cable must be used to prevent water and other corrosive materials from corroding, in order to prevent the water tree caused by the aging of the insulation layer and breakdown. Crane or forklift should be used for the loading and unloading of cables. It is forbidden to run flat or lay flat. For installation of large cables, cable laying cart should be used to avoid external damage or abrasion caused by manual dragging. If the cable cannot be laid in time for some reason, it should be stored in a dry place to prevent sunlight from exploding and water entering the end of the cable. ? Note: the installation of wire and cable should be familiar with the performance of wire and cable installation personnel or full-time technical personnel, if there are still unclear matters, ball related technical department or technical department of our factory.
　　。HYA通信电缆用途：主要用于传输音频、150kHZ及以下的模拟信号和2048kbit/s及以下的数字信号。在一定条件下，也可用于传输2048kbit/s以上的数字信号。适用于市内、近郊及局部地区架空或管道敷设线路中，也可直埋。

　　大对数电缆接续采用的模块为25对，也是基于以上原则。如机床加工设备、物流输送系统、港口机械、成套设备安装工程。产品特点：可根据客户要求定做彩色线芯或编码线芯。采用优质PVC混合料，减小了电缆外径降低对安装空间的要求。



　　--铜芯、聚烯烃绝缘、聚氯乙烯护套市内通信电缆。YVV聚氯乙烯绝缘、聚氯乙烯护套仪表用电缆固定敷设，用于仪器、仪表的连接。YVVP聚氯乙烯绝缘、聚氯乙烯护套仪表用屏蔽电缆同上，用于要求抗干扰的情况下。

This product is used for household appliances, electric tools and various kinds of mobile appliances with rated ac voltage of 450/750v or less. (1) rated voltage Uo/U of YZ type is 300/500v, and YC type is 450/750v. (2) the wire core long-term allowed working temperature does not exceed 65 ℃. (3) w-type cable has weather resistance and certain oil resistance performance, which is suitable for use outdoors or in contact with oil pollution. (4) ZR cable has flame retardant performance.

可控硅分单向可控硅和双向可控硅两种，都是三个电极。单向可控硅有阴极（K）、阳极（A）、控制极（G）。双向可控硅等效于两只单项可控硅反向并联而成。即其中一只单向硅阳极与另一只阴极相边连，其引出端称T2极，其中一只单向硅阴极与另一只阳极相连，其引出端称T2极，剩下则为控制极。单、双向可控硅的判别：先任测两个极，若正、反测指针均不动（R×1挡），可能是K或A极（对单向可控硅）也可能是TT1或TG极（对双向可控硅）。

　　。。同轴电缆（视频线，监控线，射频线）同轴电缆从用途上分可分为基带同轴电缆和宽带同轴电缆（即网络同轴电缆和视频同轴电缆）。同轴电缆分50Ω基带电缆和75Ω宽带电缆两类。基带电缆又分细同轴电缆和粗同轴电缆。


　　一般推荐如下： 普通双绞屏蔽型电缆 STP-120Ω（for RS485 CAN） one pair 20 AWG ，蓝色护套，电缆外径7.7mm左右。适用于室内、管道及一般工业环境。使用时，屏蔽层一端接地。

　　电缆地线芯绝缘采用具有抗氧化性能的K型B类低密度聚乙烯。聚乙烯的绝缘电阻高，耐电压好，介电系数小和介质损耗温度和变频率的影响也小，不但能满足传输性能的要求，而且能确保电缆的使用寿命。为了减少回路间的相互串扰和外部干扰，电缆采用屏蔽结构。

　　Theproductissuitableforuseinpowerdistributionlinesorfixedinstallationswithratedpower-freandincluding0.6/1kV.使用特性•工频额定电压U0/U:0.6/1kV。