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高密ZA-RVV1X1.5电缆1000V含蓄

更新时间:2025-05-24 05:28:09
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高密ZA-RVV1X1.5电缆1000V含蓄

Because of the refractory layer of the refractory cable, the multi-layer mica belt is usually used to wrap directly around the wire. It can withstand long periods of time, even if the polymer at the point where the flame is applied is burned down, it can keep the line running.
Fire control cable USES: this product has high fire-resistant ability, can withstand direct flame combustion and in a certain period of time not short circuit or open circuit fault occur, when the fire broke out, to put out the fire and reduce the loss. It is suitable for electric devices and control systems in places with high fire risk and fire control importance. Product standard: Q/ 320831nhn004-1996 25 ℃ ~ + 105 ℃ and 60 ℃ ~ + 200 ℃. Two kinds of refractory characteristics: comply with GB12666.6-90: A class: the flame temperature of 950 ℃ to 1000 ℃ class B: flame temperature 750 ℃ to 800 ℃ the burning time of 90 min burning time: 90 min additional voltage 500 v 3 additional voltage 500 v 3 A current a. flame retardant properties: Comply with class A of gb12666.5-90 test • minimum allowable bending radius of cable: The armoured not less than 12 times the cable diameter models: main material PVC insulated PVC sheathed low smoke low halogen low smoke zero halogen sheath insulation fluorine plastic insulation Low smoke low halogen sheath fluorine plastic insulation Low smoke zero halogen sheath fluorine plastic insulation fluorine plastic sheath Single strand conductors without shielding NH - KVV NH - KV D Y D NH - KFV DNH KFY D NH - KFF single strands of copper conductor shielding NH - KVVP NH - KV D Y D P NH - KFV D P NH - KFY D P NH - KFFP single stranded conductor copper tape screened NH - KVVP 2 NH - KV D Y D P 2 NH - KFV D P 2 NH - KFY D P 2 NH - KFFP 2 soft conductor shielding NH - no KVVR NH - KV D Y D R NH - KFV NH - KFY D D R R NH - KFFR soft copper conductor shielding NH - KVVRPNH - KV D Y D RP NH - RP NH - KFY KFV D D RP NH - KFFRP no shielding NH - steel tape armoured KVV NH - 22 KV D Y D - 22 NH - KFV NH - KFY D - D - 22 of 22 NH - KFF 22 note: PVC insulation structure by using the 105 ℃ resistance fuel used for refractory compound insulation structure. Specifications: Section 0.5 0.75 1.0 1.5 2.5 4 June 15 mm 2 above and below 2.5 mm 2 class A 1/0.80 1/1.13 1/1.13 1/1.38 1/1.38 1/1.13 1/1.13 PVC fluorine plastic sheath PVC fluorine plastic sheath class B 19/0.1 19/0.2 19/0.2 19/0.3 19/0.3 19/0.2 19/0.2 4-2-2-61 core 37 core 27 Core 4-14 core technical indicators: Performance can project technical indicators conductor dc resistance (20 ℃) or less Ω/km nominal section 0.5 0.75 1.0 1.5 2.5 4 6 class A 36.0 24.5 18.1 12.1 7.41 4.61 3.08 39.0 26.0 26.0 13.3 7.98 4.95 19.5 B test voltage 3000 V / 5 min not breakdown insulation resistance M Ω 1000 km or more refractory characteristics through the class A, Class B (according to gb12666.5-90 test) passed class A (according to gb12666.5-90 test).

  3、橡皮绝缘电力电缆绝缘层为橡胶加上各种配合剂,经过充分混炼后挤包在导电线芯上,经过加温硫化而成。它柔软,富有弹性,适合于移动频繁、敷设弯曲半径小的场合。常用作绝缘的胶料有天然胶-丁苯胶混合物,乙丙胶、丁基胶等。

  该电缆主要用于交流或直流300V及以下的工作系统,在500V及以下时能正常工作。金属屏蔽电力电缆适用于额定电压0.6/1kv及以下的交直流电力系统中的输送电能用。产品具有较强的电磁干扰、抗雷击及均衡电位、改善供电品质的特性,特别适宜计算机中心、航空航天监控中心、智能大楼等精密电子装置的场所。

高密ZA-RVV1X1.5电缆1000V含蓄

The solid insulated filled cable is suitable for the urban telecommunication lines of the local telecommunication network and the special network lines connected to the public network. Mainly used for pipeline laying. The inner and outer surfaces of the cable core and the shield layer are filled with oil paste and poured to prevent water intrusion. The mechanical and electrical properties of the cable remain unchanged under conditions of 30~C - 60~C.

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)。

  四、型号、名称 PVV聚氯乙烯绝缘聚氯乙烯护套信号电缆PYV聚乙烯绝缘聚氯乙烯护套信号电缆PVV22聚氯乙烯绝缘聚氯乙烯护套钢带铠装信号电缆PYV22聚乙烯绝缘聚氯乙烯护套钢带铠装信号电缆产品介绍-塑料绝缘控制电缆|KVV控制电缆|KVVR控制电缆|KVVP控制电缆|KVVP屏蔽控制电缆|KVVRP。

  产品名称型号规格及范围:塑料绝缘和聚氯乙烯护套铁路信号电缆PTYAH,;PTYA;PZYA;PTYV;PTYY,;PTY22;PTY23;(PZY02;PZY03;PZY23PZY22)1/0.8mm(1/1.0mm)2-48芯适用于额定电压交流500V或直流1000V及以下的铁路信号联络、火警信号。
24 to cable chromatography: Hester prynne, white orange, white, green, white, brown, white, red, blue, red, orange, red, green, red brown, red, grey, dark blue, black and orange, dark green, dark brown, black ash, champak, yellow orange, yellow, green, yellow, brown, yellow, grey, purple, blue, purple, orange, purple, green, purple brown

  现在将一些错误的观念作出一些澄清。1.485信号线可以和强电电源线一同走线。在实际施工当中,由于走线都是通过管线走的,施工方有的时候为了图方便,直接将485信号线和电源线绑在一起,由于强电具有强烈的电磁信号对弱电进行干扰,从而导致485信号不稳定,导致通信不稳定。

高密ZA-RVV1X1.5电缆1000V含蓄

  芯数从2芯到24芯之间按国标分色,两芯以上绞合成缆,外层绞合方向为右向,软圆无氧铜线或镀锡无氧铜线屏蔽,广泛应用于仪器、仪表、楼宇对讲、监视监控的控制安装。SYV实芯聚乙烯绝缘聚氯乙烯护套射频同轴电缆 :用于视频监控线路、会议视频等电子线路架设、工程装修讯号传输、影音器材连接以及其它电子装置,无线电通讯广播设备的有关无线电电子设备中传输射频信号。

  1、低水平重复建设多近几年,电线电缆行业对产品结构的调整重视不够,产品结构矛盾依然突出,高水平产品满足不了需要。例如,从大类看,我国裸电线产量占近1/5,发达国家只占1/10。而在裸电线中,架空线和普通的钢芯铝绞线又占了绝大多数。

为什么回路电流走零线不走地线,而漏电流走地线不走零线,零线地线原理是什么?这是由配电系统的接线方式决定的。~为三相五线制接线示意图。以L1相、单相设备为例。三相变压器次级线圈产生的交流电压,经L1相线圈首端(火线)保险L1线单相设备零线(N)回到线圈末端,形成回路,满足了产生电流的必要条件,即有电源和闭合回路,因而产生了工作电流,使设备正常工作。~为带漏电保护空开。再来看看保护地线(PE)的接法。从图可见,在变压器端零线(N)和保护地线(PE)接法没有不同,但在设备端就完全不同了,它只接金属外壳或其它与火线和零线都绝缘的导电金属部分,因此正常情况下,保护地线(PE)与电源之间没有形成回路,因而也就没有电流。

  dingradiusofmulticore-cableshouldnotlessthan15timesofthecablediame。。煤矿用阻燃射频同轴电缆一、产品用途及特点本产品适用于矿山、井下视频监控系统中信号传输连接馈线,本产品具有防爆阻燃性和屏蔽性。

  KVVP-22铜芯聚氯乙烯绝缘和护套编织屏蔽钢带铠装控制电缆。KVVP2-22铜芯聚氯乙烯绝缘和护套钢带铠装控制电缆。技术指标:聚氯乙烯控制电缆线芯允许长期工作高温度70℃,交联聚乙烯控制电缆线芯允许长期工作高温度为90℃。

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