热缩电缆中间接头广泛用于35KV及以下电压等级的交联电缆或油浸电缆的中间连接上。
中文名称 | 热缩电缆中间接头 | 老化寿命 | 长达20年 |
---|---|---|---|
径向收缩率 | ≥50% | 纵向收缩率 | <5% |
PROPERTY测试项目 | TEST METHOD 测试方法 | RESULT 测试结果 |
AC WITHSTAND FOR 1MIN UNDER RAIN 1MIN 工频电压(湿态) | 105KV不闪络、不击穿 | 105kv,1min, 湿态下组合试样未闪络和击穿 |
PARTAIL DISCHARGE TEST 局部放电试验 | 39KV下放电量不大于20PC | A、B、C三相在39kv下放电量为4pc |
HEATING CYCLES VOLTAGE TEST 负荷循环试验 | 导体加热至90-95℃,每一循环为8h,其中加热5h,冷却3h,共三次循环 | 按标准要求完成三次负荷循环试验 |
IMPULSE VOLTAGE WITHSTAND TEST 冲击电压试验 | 25kv,正负极性各10次不闪络,不击穿 | 25kv正负极性各10次, 组合试样未闪络和击穿 |
DC NEGATIVE POLARITY VOLTAGE WITHSTAND FOR 15MIN | 156kv不闪络,不击穿 | 156kv,15min, 组合试样未闪络和击穿 |
AC WITHSTAND TEST FOR 4H 4H工频电压试验 | 104kv不闪络,不击穿 | 104kv,4h, 组合试样未闪络和击穿 |
长春市鲜中热缩材料有限公司,型号:JSY-35/3.3,报价:40.00元; 廊坊霸州得力五金机具公司,型号:NSY-6/3·4 6-10KV,报价:19.00元; 以上价格来...
电缆中间接头是按1根电缆一个接头.
在计算电缆长度时,是按图示长度(不扣除中间接头盒长度)再加上2*2 m
热缩电缆中间接头制作安装 作业指导书 目 次 1 适用范 围················································································································· ························123 2 编写依 据················································································································· ························123 3 作业流程 图·····································································
132 热缩电缆中间接头制作安装 作业指导书 编码: DLFJAZ-04 DLFJAZ-04 热缩电缆中间接头制作安装作业指导书 133 目 次 1 适用范围 ······················································································································································123 2 编写依据 ······················································································································································123 3
1、电缆外护层受到机械损伤时的局部修补;
2、热缩电缆中间接头护套端口的防水密封处理;
3、带电裸导线的过树防护及过遂道防冰柱短路处理;
4、管道防腐和密封;
5、开关柜和电站母线排的绝缘防护处理;
6、其它需要绝缘和密封的场所。