Power Series Products / Heat Shrink Cable Accessories
35kV heat-shrinkable three-core indoor termination
Model:
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Description
35kV heat-shrinkable three-core indoor termination is widely used for terminating 35kV cross-linked cables. According to cable cross-section, an appropriate amount of stress control tape can be provided to facilitate installation and construction, thereby uniformly improving electric field distribution. It adopts an advanced double ground wire process, in which the cable steel armor ground wire and copper shield ground wire are separately grounded. Tests by Wuhan High Voltage Research Institute have confirmed that the process is advanced and operation is more reliable.
Features
- 35kV heat-shrinkable three-core indoor terminal, widely used in the termination treatment of 35kV cross-linked cables; an appropriate amount of stress control tape can be provided according to different cable cross-section sizes to facilitate installation and construction, thereby uniformly improving electric field distribution. It adopts an advanced dual-ground-wire process, with the cable steel armor and copper shielding ground wires grounded separately. Tested by Wuhan High Voltage Research Institute, the process is confirmed to be advanced and more reliable in operation.
Specifications
Test itemTest requirements / Test results / Remarks
Power-frequency withstand voltage105 kV for 1 min, no flashover or breakdown / 105 kV for 1 min, no flashover or breakdown in any combined test specimen / Qualified
Partial discharge test39 kV, ≤10 pC / Discharge magnitude of each phase of combined test specimens ≤5 pC / Qualified
Load cycle test, 3 cycles5 h heating, 3 h cooling; during heating, conductor temperature 95 °C / Three load cycle tests completed as required by the standard / Evaluated by the following tests
Impulse voltage test, 1.2/50 μs, positive and negative polarity once each250 kV, one flashover allowed for positive and negative polarity but not counted in the total number of tests / 250 kV, positive and negative polarity 10 times each; no breakdown or flashover in any combined test specimen / Qualified
DC voltage test, negative polarity
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Features
- 35kV heat-shrinkable three-core indoor terminal, widely used in the termination treatment of 35kV cross-linked cables; an appropriate amount of stress control tape can be provided according to different cable cross-section sizes to facilitate installation and construction, thereby uniformly improving electric field distribution. It adopts an advanced dual-ground-wire process, with the cable steel armor and copper shielding ground wires grounded separately. Tested by Wuhan High Voltage Research Institute, the process is confirmed to be advanced and more reliable in operation.
Specifications
Test itemTest requirements / Test results / Remarks
Power-frequency withstand voltage105 kV for 1 min, no flashover or breakdown / 105 kV for 1 min, no flashover or breakdown in any combined test specimen / Qualified