It is widely used in the fields of electric power industry, communications, automobiles, ships, aircraft manufacturing, etc.
It is widely used in the fields of electric power industry, communications, automobiles, ships, aircraft manufacturing, etc.
1. Crosslinked cable heat shrinkable terminal double ground wire process. That is, the steel armored ground wire and the copper shielded ground wire are separated, making the cable pre test more reasonable.
A. Measure the resistance of the steel armored ground wire and ground. When conducting, it indicates that the inner liner has been damaged; Measure the resistance of the copper shield ground wire to ground. When conducting, it indicates that both the inner and outer protective layers of the cable have been damaged.
In order to facilitate construction, a triangular cushion cone has been developed.
The tapered structure of the finger sleeve never cracks.
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 |
热缩单芯户内终端 | NRSY-10/1.1 | 25-50mm2 |
NRSY-10/1.2 | 70-120mm2 | |
NRSY-10/1.3 | 150-240mm2 | |
NRSY-10/1.4 | 300-500mm2 | |
热缩单芯户外终端 | WRSY-10/1.1 | 25-50mm2 |
WRSY-10/1.2 | 70-120mm2 | |
WRSY-10/1.3 | 150-240mm2 | |
WRSY-10/1.4 | 300-500mm2 | |
热缩三芯户内终端 | NRSY-10/3.1 | 25-50mm2 |
NRSY-10/3.2 | 70-120mm2 | |
NRSY-10/3.3 | 150-240mm2 | |
NRSY-10/3.4 | 300-500mm2 | |
热缩三芯户外终端 | WRSY-10/3.1 | 25-50mm2 |
WRSY-10/3.2 | 70-120mm2 | |
WRSY-10/3.3 | 150-240mm2 | |
WRSY-10/3.4 | 300-500mm2 |
Tel: + 86 0577 61758955
Mobile: + 86 13587882088
Address: No. 13, Xiangzhong West Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province
Copyright©2022 Zhejiang Langdao Electric Co., Ltd ALL 浙ICP备17003169号-1
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