YJV-2(4*95+1*35) 那个2表示是2根电缆 还是绝缘等级?

2025-03-03 04:10:20
推荐回答(3个)
回答1:

  YJV-2(4*95+1*35)中的2表示是2根电缆,即为两根交联聚乙烯绝缘聚氯乙烯护套五芯电缆。YJV表示交联聚乙烯,4X95表示4根95平方电缆,1X50表示1根50平方电缆。
  电缆通常是由几根或几组导线(每组至少两根)绞合而成的类似绳索的电缆,每组导线之间相互绝缘,并常围绕着一根中心扭成,整个外面包有高度绝缘的覆盖层。电缆具有内通电,外绝缘的特征。
  电缆有电力电缆、控制电缆、补偿电缆、屏蔽电缆、高温电缆、计算机电缆、信号电缆、同轴电缆、耐火电缆、船用电缆、矿用电缆、铝合金电缆等等。它们都是由单股或多股导线和绝缘层组成,用来连接电路、电器等。

回答2:

电缆数量。即两根交联聚乙烯绝缘聚氯乙烯护套五芯电缆。

回答3:

1 执行标准:Q/GDNY05.4-2003

2 用途:本产品适用于固定敷设在交直流额定电压600/1000V及以下易燃环境和对电线电缆有阻燃要求的动力线路中作为电能传输使用。

3 使用特性:电缆工作温度普通型为-20℃~70℃,耐热型为-40℃~200℃。电缆的 敷设温度应不低于0℃;弯曲半径不小于电缆外径的10倍。

4 产品型号和名称
型 号

名 称

ZR-VV 铜芯,聚氯乙烯绝缘和护套阻燃电力电缆

ZR-F46V 铜芯,氟塑料绝缘聚氯乙烯护套, 耐热型阻燃电力电缆

ZR-F46F46 铜芯,氟塑料绝缘和护套耐热型阻燃电力电缆

ZD-YJV 铜芯,交联聚乙烯绝缘低烟低卤耐热型阻燃电力电缆

ZGR-YJV 铜芯,交联聚乙烯绝缘隔氧层耐阻燃电力电缆

说明:如要钢带铠装则加上:22

5 电缆的线芯规格及有关参数
截面mm² 1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185
导体结构根/直径mm 1 / 1.38 1 / 1.78 1 / 2.25 1 / 2.76 7 / 1.35 7 / 1.7

7 / 2.14 7 / 2.52 19/ 1.78 19/ 2.14 19/ 2.52 37/ 2.03 37/ 2.25 37/ 2.52
20℃时电阻

≯ Ω/km

12. 1 7. 41 4. 51 3. 08 1. 83 1. 15 0. 727 0. 524 0. 387 0. 268 0. 193 0. 153 0. 124 0.0991
绝缘厚度mm

0.8 0.8 1.0 1.0 1.2 1.2 1.4 1.4 1.6 1.6 1.8 1.8 2.0 2.2
6 电缆技术性能

6.1 导体直流电阻值应符合上表的规定。

6.2 绝缘线芯应经受6kv~15kv的工频火花电压试验。

6.3 成品电缆线芯的绝缘电阻。换算到电缆长度为1km和温度为20℃时,导线截面50以下绝缘电阻(MΩ·km)不小于50;70~185为35;240以上为20。

6.4 成品电缆应能经受交流50Hz,3500V/5min的耐压试验。

6.5 电缆阻燃性能应符合GB12666标准中分类试验的要求。

6.6 阻燃电缆氧指数:一般阻燃电缆为28—30;低烟低卤阻燃为30--35

7 表示方法:阻燃电力电缆由型号、线芯数及导体的标称截面表示,举例如下:

1 铜芯,交联聚乙烯绝缘低烟低卤耐热型阻燃电力电缆,3芯 , 35 mm² 表示为:ZD-YJV 3*35

2 ZR-F46V:3*50 则表示该电缆为:氟塑料绝缘和聚氯乙烯护套,耐热型阻燃电力电缆,线芯数为3芯 , 导体标称截面为50 mm²

8 交货长度

电缆交货长度一般为100米以上,计量误差不大于±0.5%。

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