本安控制电缆3X1.5每公里批发格辉南安装电力电缆ZA-RVV1X50每公里格悲痛

本安控制电缆3X1.5每公里批发格辉南安装电力电缆ZA-RVV1X50每公里格悲痛

　　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。设计使用循环弯曲寿命为500万次,实际使用已超过600万次。



Rated voltage: rated voltage is the reference voltage for cable design and electrical performance test. The rated voltage is represented by U0 and U in units V.

　　主要用於管道敷设。在缆芯中和屏蔽层的内外表面用石油膏填充和浇注处理，以防止水分侵入。在一30~C一60~C的环境条件下，电缆的机械和电气性能保持不变。结构：导线：退火裸铜线，铜线直径为0．40，0．50，0．60，0．70，0．80，0．90(mm)。

　　控制、监控回路及保护线路，电器仪表、配电装置的信号传输、控制与测量的使用。控制、监控回路及保护线路，电器仪表、配电装置的信号传输、控制与测量的使用。控制、监控回路及保护线路，电器仪表、配电装置的信号传输、控制与测量的使用。



　　视频线SYV-75-5,SYV-75-3,电源线RVV,屏蔽线RVVP供应视频线SYV-75-5,SYV-75-3,电源线RVV,屏蔽线RVVP供应视频线SYV-75-5,SYV-75-3,电源线RVV,屏蔽线RVVPSYV-75-3SYV-75-5SYV-75-7SYV-75-9SYV-50-3S。

接地线应使用截面不小于25mm2的多股软裸铜线和专用线夹。严禁用缠绕的方法，进行接地和短路。6设备或线路检修完毕，应全面检查无误后方可拆除临时短路接地线。7用绝缘棒或传动机构拉、合高压开关，应戴绝缘手套。雨天室外操作时，除穿戴绝缘防护用品以外，绝缘棒应有防雨罩，并有人监护。严禁带负荷拉、合开关。手持电动工具的日常检查至少应包括以下项目：工具在发出或收回时，保管人员必须进行一次日常检查；在使用前，使用者必须进行日常检查。

　　Forlayingindoors、intunnel,cabletrench,ordirectinground,abletobearexternalmechanicalforces,butunabletobearlargepullingforce。

　　●电缆导体的允许长期高工作温度为90℃。●短路时（长持续时间不超过5s）电缆导体的高温度不超过250℃。●电缆敷设时环境温度应不低于0℃。●电缆弯曲半径：三芯电缆不小于电缆外径15倍；单芯电缆不小于电缆外径20倍。
　　说的通俗些铠装电缆也就是地埋的电线电缆，动力线传输电能电缆加上铠装层的目的除了增强抗拉强度、抗压强度等机械保护延长使用寿命外，铠装的有一定的抗外力性能，还可以放一些老鼠撕咬，不至于透过铠装造成电力传输问题，铠装的弯曲半径要大，铠装层可以接地保护电缆计算机铠装电缆、计算机屏蔽铠装电缆：双屏双绞铠装电缆。

　　RVVP2-22铜芯聚氯乙烯绝缘和护套钢带铠装软电力电缆敷衍设在室内、电缆沟、管道、直埋等能承受较大机械外力等固定场合。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、电缆的型号、名称和用途序号型号名称使用范围1ZR-VVZR-VLVZR-VYZR-VLY阻燃聚氯乙烯绝缘阻燃聚氯乙烯/聚乙烯护套动力电缆敷设在室内、隧道及管道中，电缆不能承受机械外力作用ZR-VV22ZR-VLV22ZR-VV23ZR-VLV23阻燃聚氯乙烯绝缘阻燃聚氯乙烯/聚乙。

　　屏蔽结构的设计1.8／3千伏及以下变频电机专用电缆的屏蔽一般采用总屏蔽，6／10千伏变频电机专用电缆屏蔽由分相屏蔽和总屏蔽构成，分相屏蔽一般可采用铜带屏蔽或铜丝铜带组合屏蔽。总屏蔽结构可采用铜丝铜带组合屏蔽、铜丝编织屏蔽、铜带屏蔽、铜丝编织铜带屏蔽等，屏蔽层截面与主线芯截面按一定比例。

由于漏电保护器的作用是防患于未然，电路工作正常时反映不出来它的重要，往往不易引起大家的重视。有的人在漏电保护器动作时不是认真地找原因，而是将漏电保护器短接或拆除，这是极其危险的，也是不允许的。注意：漏电保护器必须要求有极高的灵敏性，使用知名品牌往往能提高安全性，因为它们对线路的检测非常精密、灵敏，在0.1秒甚至更短的时间内就可以检测到异常，并在电流强度和时间尚未达到伤害程度前，就立即跳闸，切断电源主回路，充分保证了人身安全。

　　符合IEC331规定符合GB12666.6规定燃烧时间750℃火焰温度950℃~1000℃火焰温度75℃~800℃火焰时间3h燃烧时间90min燃烧时间90min冷却时间12h附加电压额定电压附加电压额定电压附加电压 额定电压附加电流3A附加电流 3A附加电。



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.

Main technical performance and indexes of signal cable for mining: 20 ℃ when the conductor dc resistance Ω / 7/0.28 7/0.28 or less 45 km (3 steel 4 copper) 73 1/0.8 or less or less natural attenuation (800 ~ 1000 hz) 36.7 dB/km acuities were 1.1, 1.3, 0.95 or less 20 ℃ or less insulation resistance of cable insulation wire core M Ω. Km 3000 line of work or capacitance (800 ~ 1000 hz) uF/km 0.06 or less near end crosstalk attenuation (800 ~ 1000 hz) dB / 500 M or 70 inductor (800 ~ 1000 hz) UH /km is less than or equal to 800. The ac power frequency voltage is 1.5KV/1min. The dc resistance difference is less than or equal to 2% of the loop resistance

HYV, HSYV indoor large logarithmic communication cable is introduced: SPC switching station MDF and exchange between users of audio connection, also can be used for other audio connections between communication e, can support the low rate of data transmission, application support voice, digital telephone, fax, program-controlled switches, digital e connection, telecom integrated system and main branch line, inner conductor wire diameter (mm) : 0.40, 0.50, 0.60, 0.70, 0.80, 0.90, logarithmic (on) : 10-500