Description
Cold shrink cable termination
1.technology
making use of the advantage of rubber-elastic memory’ and adopt advanced expansion technology, the rubber of cable termial are pre-stretched in the elastic range and inerted into the plastic support strip, during installtion, no No need to use open flame and special tools during installation, just gently extract the core rope. Grounding adopts a constant force spring, no welding or copper wire binding is required, as long as the plastic support strip is pulled out, the rubber of the cable termination will quickly contract and hold on to the cable.
2.Reliable insulation
the raw material are made of high quality liquid silicone rubber from intemational famous companies , which could make rubber insulation with excellent electrical performance.
3. good sealing
in each connection part of the cable termination, a special seeling glue is used to seal the whole cable, which is isolated from the atmospheric enviroment and avoid the operation accident caused by enviromental problems.
4.Applicable standard: IEC 60502
5. Range of cold shrink cable termination
| Rated Voltage | 8.7/15(17.5)kV | 12/20(24)kV | 18/30(36)kV | 26/35(40.5)kV |
| Running Temperature | 17.5kV | 24kV | 36kV | 40.5kV |
| AC Withstand Voltage and DC Withstand Voltage | 39kV, 5min or 35kV, 15min, no flashover, no breakdown | 54kV,5min, or 48kV, 15min, no flashover, no breakdown | 81kV, 5min, or 72kV, 15min, no flashover, no breakdown | 117kV, 5min or 104kV, 15 min no flashover, no breakdown |
| Partial Discharge | 15kV, PD≤5pC | 20kV, PD≤5pC | 30kV, PD≤5pC | 45kV, PD≤5pC |
| Impulse Voltage Test | 95kV, ±10 times | 125kV, ±10 times | 170kV, ±10 times | 200kV, ±10 times |
| Short Circuit Thermal Stability (Conductor) | 24kA, 2s twice, no visible damage | 25kA, 2s twice, no visible damage | 23kA, 2s twice, no visible damage | 25kA, 2s twice, no visible damage |
| Short Circuit Dynamic Stability | 83kA, not less than 10ms, no visible damage | 63kA, not less than 10ms, no visible damage | 83kA, not less than 10ms, no visible damage | 88kA, not less than 10ms, no visible damage |
| Constant Voltage Load Cycle | apply voltage 2.5U0 to conductor and heat to(90-95)ºC heat for 5h and cool for 3h, total 3 times | |||
| Salt Spray Test | 1.25U0 1000h, no flashover, no breakdown, trip not more than 3 times, no obvious damage | |||
| Humidity Test | 1.25U0 300h, no flashover, no breakdown, trip not more than 3 times, no obvious damage | |||
| Long-time Running Temperature | -40ºC to 95ºC | |||
| Short Circuit Temperature | 250ºC, lasting time less than 5s | |||
| Cable Accessories Conductor Material | copper, aluminum, copper&aluminum | |||
