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电气化铁路27.5kV电缆

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Classification:

铁道机车车辆用电线电缆

Summary:

交流单相、工频、额定电压及牵引变电所、分区所、开闭所、自耦变压器所引出的馈电线等。敷设地点分为地下直埋、穿管、地面电缆沟、地下隧道、变电所电缆夹层或局部露天敷设等。

产品描述
结构参数

1、产品执行标准

GB/T 28427-2012。

2、产品应用范围

交流单相、工频、额定电压及牵引变电所、分区所、开闭所、自耦变压器所引出的馈电线等。敷设地点分为地下直埋、穿管、地面电缆沟、地下隧道、变电所电缆夹层或局部露天敷设等。

3、产品使用特性

3.1.额定电压：27.5kV。

3.2.导体的长期最高允许工作温度为90℃，导体短路时(短路时间不超过5s)的最高温度为250℃。

3.3.电缆安装环境温度：≥0℃;电缆使用环境温度：-15℃～+60℃。

3.4.电缆安装时最小弯曲半径：12D。

4、电缆主要技术指标

4.1.导体结构：裸铜，符合GB/T 3956第2种绞合导体。

4.2.导体屏蔽、绝缘、绝缘屏蔽采用全封闭化学交联三层共挤工艺，材料性能符合GB/T 28427的相关要求。

4.3.屏蔽材料：铜丝、铜带，符合GB/T 28427的相关要求。

4.4.铠装材料：铝丝，符合GB/T 28427的相关要求。

4.5.护套材料：低烟无卤聚烯烃、低烟低卤聚烯烃，符合GB/T 28427的相关要求。

型号	电压	规格	参考外径mm	参考重量kg/km
TDWD-YJY73	27.5kV	1×150	58.2	4618
TDWD-YJY73	27.5kV	1×185	59.8	5189
TDWD-YJY73	27.5kV	1×240	62.4	5917
TDWD-YJY73	27.5kV	1×300	65.2	6681
TDWD-YJY73	27.5kV	1×400	68.0	7713
TDDD-YJY72	27.5kV	1×150	58.2	4577
TDDD-YJY72	27.5kV	1×185	59.8	5146
TDDD-YJY72	27.5kV	1×240	62.4	5871
TDDD-YJY72	27.5kV	1×300	65.2	6631
TDDD-YJY72	27.5kV	1×400	68.0	7659

Key words:

电气化铁路27.5kV电缆

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