It is widely used in the fields of electric power industry, communications, automobiles, ships, aircraft manufacturing, etc.
Many failures of cable intermediate joints are caused by poor sealing. Our company adopts a new process (three seal process), which makes the operation of cables safer and more reliable. The so-called three seals, namely, the outer protective layer seal, the inner protective layer seal, and the seals at both ends of the inner insulating pipe, constitute a total of three seals.
The insulation pipe is lengthened to solve the problem of creepage.
The protective sleeve is soft and flame retardant.
序号 | 试验项目1) | 标准要求 | |||
户内 | 户外 | 中间 | |||
1 | 工频耐压试验 | AC 39kV,5min或 DC 35kV,15min | |||
淋雨下工频耐压试验 | ---- | 35kV下,1min,组合试样未闪络和击穿 | ------ | ||
2 | 室温下局部放电试验 | 在15kV下组合试样无可检测放电 | |||
3 | 高温下冲击电压试验,在θt2)下 | 95kV,正负极性冲击各10次不闪络,不击穿 | |||
4 | 恒压负荷循环试验 | 在θt温度下和23kV下循环60次3)(空气中) | 在θt温度下和23kV下循环30次3)(空气中)和30次3)(水中) | ||
5 | 局部放电(在θt2)4)下和环境温度下t) | 在15kV下≤10pC | |||
6 | 短路热稳定(屏蔽5)) | 在电缆屏蔽的ISC下,短路2次,无可见损伤; | |||
7 | 短路热稳定(导体) | 升高到电缆导体的θSC下,短路2次,无可见损伤 | |||
8 | 短路动稳定 | 在电缆屏蔽的Id下,短路1次,无可见损伤 | |||
9 | 冲击电压试验 | 95kV,正负极性冲击各10次不闪络,不击穿 | |||
10 | 交流耐压 | 23kV,15min | |||
11 | 潮雾试验7) | 11kV,300H | |||
12 | 盐雾试验7) | 11kV,1000H | |||
1)除非另有规定,试验应在环境温度下进行; 2)θt是正常运行时导体最高温度加(5-10)℃; 3)每一循环8H,温度稳定时间至少2H,冷却时间至少3H; 4)在加热期结束时进行测量; 5)本试验仅适用于能直接或通过衬套与电缆金属屏蔽相连接的终端; 6)进对峰值电流ip>80kA的单芯电缆附件和峰值电流ip>63kA的三芯电缆附件有此要求; 7)对瓷套管、瓷绝缘套管的终端无此要求;对有护罩式终端应在三相条件下试验。 |
产品名称 | 规格型号 | 适用电缆截面 |
热缩单芯中间接头 | JRSY-10/1.1 | 25-50mm2 |
JRSY-10/1.2 | 70-120mm2 | |
JRSY-10/1.3 | 150-240mm2 | |
JRSY-10/1.4 | 300-500mm2 | |
热缩三芯中间接头 | JRSY-10/1.1 | 25-50mm2 |
JRSY-10/1.2 | 70-120mm2 | |
JRSY-10/1.3 | 150-240mm2 | |
JRSY-10/1.4 | 300-500mm2 |
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Tel: + 86 0577 61758955
Mobile: + 86 13587882088
E-mail: lddq@cnlddq.com
Address: No. 13, Xiangzhong West Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province