| Quantity: | |
|---|---|
4E
| Model Series | Voltage U₀/U | Cores | Cable Insulation Diameter Range | Application | Shield Type |
|---|---|---|---|---|---|
| HST-10/1 | 6/10 kV | 1 | 16–35 mm | Indoor / Outdoor | Copper tape / wire |
| HST-10/3 | 6/10 kV | 3 | 20–45 mm | Indoor / Outdoor | Copper tape / wire |
| HST-15/1 | 8.7/15 kV | 1 | 18–40 mm | Indoor / Outdoor | Copper tape / wire |
| HST-15/3 | 8.7/15 kV | 3 | 25–50 mm | Indoor / Outdoor | Copper tape / wire |
| HST-24/1 | 12/20 kV | 1 | 22–48 mm | Indoor / Outdoor | Copper tape / wire |
| HST-24/3 | 12/20 kV | 3 | 30–60 mm | Indoor / Outdoor | Copper tape / wire |
| HST-35/1 | 26/35 kV | 1 | 30–60 mm | Indoor / Outdoor | Copper tape / wire |
| HST-35/3 | 26/35 kV | 3 | 40–75 mm | Indoor / Outdoor | Copper tape / wire |
Custom kits available for non-standard insulation diameters and cable constructions.
Voltage rating (U₀/U): Match to the cable’s rated voltage. For 10kV system, use 6/10kV or 8.7/15kV kit depending on grounding. For 35kV system, use 26/35kV kit.
Number of cores: Single-core or three-core. Three-core kits include separate tubes for each core and a breakout boot.
Cable insulation outer diameter: This is the critical dimension. Measure the diameter over the insulation screen (excluding semi-conductive layer). Select kit whose diameter range covers your cable. If the cable diameter falls between two kit sizes, choose the larger and use additional sealing tape.
Shield structure: Copper tape, copper wire, or lead sheath. Kits include appropriate ground lead and constant-force spring for shield connection. For lead sheath, use a lead sleeve and solder.
Indoor or outdoor: Outdoor kits include anti-tracking tubing and larger creepage distance. Indoor kits are shorter. Both use the same stress control principle.
Cable conductor cross-section: Determines the terminal lug size. Kits typically include lugs for a range of cross-sections. Specify conductor material (copper or aluminium) and lug type (compression, bolted, or mechanical).
Installation environment: For highly polluted areas, select outdoor kit with extended creepage. For high altitude, derate voltage. For seismic zones, use flexible connections.
| Parameter | Value |
|---|---|
| Rated voltage U₀/U | 3.6/6, 6/10, 8.7/15, 12/20, 18/30, 26/35 kV |
| Maximum system voltage Um | 7.2, 12, 17.5, 24, 36, 42 kV |
| Power frequency withstand (5 min) | 2.5 U₀ for 1 min (routine test) |
| Lightning impulse withstand (1.2/50 µs) | 60, 75, 95, 125, 150, 170 kV (depending on class) |
| Partial discharge at 1.73 U₀ | ≤ 10 pC |
| Continuous conductor temperature | 90°C |
| Emergency overload temperature | 130°C (≤ 8 h) |
| Short-circuit temperature | 250°C (≤ 5 s) |
| Heat shrink shrinkage temperature | 120–140°C |
| Recommended installation temperature | Above -10°C |
| Creepage distance (outdoor) | ≥ 31 mm/kV |
| Kit shelf life | 2 years from production date |
| Storage conditions | Dry, ventilated, below 35°C, avoid sunlight |
Prepare cable: Cut cable to length, strip outer sheath, armour, and bedding. Leave sufficient length for termination. Remove insulation screen to expose insulation. Bevel semi-conductive layer.
Install ground lead: Connect ground lead to copper shield using constant-force spring. For three-core, connect each core shield and armour. Solder or crimp.
Apply stress control tubing: Clean insulation surface. Slide stress control tube over insulation screen cut-back. Heat evenly from centre outward until recovered.
Apply insulation tubing: Slide insulation tube over stress control tube. Heat shrink from bottom to top to avoid air pockets.
Apply sealing tubing: For outdoor, slide anti-tracking tube over insulation tube. Heat shrink. For indoor, use sealing tube at the top.
Install terminal lug: Crimp or bolt lug to conductor. Cover lug barrel with sealing tube and heat shrink.
Seal and finish: Apply conductive filler at the screen cut-off if required. Ensure all tubes are fully recovered and no voids. Test insulation resistance.
Always follow the specific kit instruction manual provided with each termination.
| Item | Quantity | Description |
|---|---|---|
| Stress control tubing | 3 | Heat shrink, red |
| Insulation tubing | 3 | Heat shrink, black |
| Anti-tracking tubing | 3 | Heat shrink, grey |
| Breakout boot | 1 | Heat shrink, black |
| Sealing tubing | 3 | Heat shrink, black |
| Conductive filler | 1 | Tube |
| Ground lead | 1 | Copper, with lug |
| Constant-force spring | 3 | For shield connection |
| Terminal lugs | 3 | Compression or bolted |
| Cleaning wipes | 1 pack | |
| Abrasive cloth | 1 | |
| Installation manual | 1 |
Single-core and indoor kits have fewer components. Exact contents vary by model.
Medium voltage switchgear and ring main units
Distribution transformers and package substations
Cable branch boxes and feeder pillars
Indoor substations and outdoor poles
Renewable energy collection systems (solar, wind)
Industrial plant power distribution
Retrofit and repair of existing PILC or XLPE cables
Typical project references: 10kV three-core XLPE cable terminations for a 2MW solar farm in Spain; 35kV single-core terminations for a steel plant in Turkey; 20kV three-core indoor terminations for a data centre in Germany.
✅ Cost-effective – lower material and installation cost than cold shrink
✅ Wide temperature range – –55°C to +125°C, suitable for extreme environments
✅ High dielectric strength – ≥ 20 kV/mm
✅ Flame retardant – self-extinguishing (IEC 60332-1)
✅ UV and weather resistant – suitable for outdoor use (with weather sheds)
✅ 30+ year service life – proven long-term reliability
✅ Compatible with LV, MV, and HV cables – up to 35 kV
