Power Series Products / Heat Shrink Cable Accessories
30kV heat-shrinkable straight joint
Model:
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Description
a. Many cable intermediate joint faults are caused by poor sealing. Our company adopts a new process (three-seal process), making cable operation safer and more reliable. The so-called three seals are: outer sheath seal, inner sheath seal, plus seals at both ends of the inner insulating tube, for a total of three seals. b. The insulating tube is lengthened, solving the creepage problem. c. The protective sleeve is soft and flame-retardant.
Features
- a. Many cable intermediate joint faults are caused by poor sealing. Our company adopts a new process (three-layer sealing process), making cable operation safer and more reliable. The so-called three-layer sealing refers to sealing of the outer sheath, sealing of the inner sheath, and sealing at both ends of the inner insulating tube—three seals in total. b. The lengthened insulating tube solves the creepage problem. c. The protective sleeve is soft and flame-retardant.
Specifications
1工频耐压试验 / 81kV，5min
2室温下局部放电试验 / ------ / 在30kV下组合试样的放电量为≤10pC / ------
3高温下冲击电压试验，在θt2)下 / 170kV，正负极性冲击各10次不闪络，不击穿
6恒压负荷循环试验（空气中） / 在θt温度下和45kV下循环60次
7局部放电（在θt2）4）下和环境温度下t） / 在30kV下≤10pC
8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；
9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
10冲击电压试验 / 每个极性冲击10次
11交流耐压 / 45kV，15min
1 / 2
1
2
Features
- a. Many cable intermediate joint faults are caused by poor sealing. Our company adopts a new process (three-layer sealing process), making cable operation safer and more reliable. The so-called three-layer sealing refers to sealing of the outer sheath, sealing of the inner sheath, and sealing at both ends of the inner insulating tube—three seals in total. b. The lengthened insulating tube solves the creepage problem. c. The protective sleeve is soft and flame-retardant.
Specifications
1工频耐压试验 / 81kV，5min
2室温下局部放电试验 / ------ / 在30kV下组合试样的放电量为≤10pC / ------
3高温下冲击电压试验，在θt2)下 / 170kV，正负极性冲击各10次不闪络，不击穿