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IEEE 48 Class 1 / HD 629.1 cold shrink outdoor termination (18/30kV). Long tracking sheds, integrated stress control. -50°C to +200°C.
Application
IEEE 48 Class 1 / CENELEC HD 629.1 cold shrink outdoor termination (18/30kV up to 36kV). For polymer cable in substation feeders, wind/solar farms, and outdoor termination structures. Pre-expanded silicone rubber housing with long tracking sheds, integrated geometric stress control. -50°C to +200°C withstand.
Core Strengths
Outdoor 30kV terminations using heat shrink or tape lack cold flexibility. Our 18/30kV HD 629.1 cold shrink termination retains flexibility at -50°C, integrated stress control, triple pollution class IV sheds, tracks/erosion resistant.
Standard
IEC 60502-4
Construction
☉〉 Body: High-grade liquid silicone rubber (pre‑expanded over a removable core)
☉〉 Stress control: Integrated geometric stress cone
☉〉 Sealing: Internal mastic/adhesive for moisture sealing
☉〉 Core: Removable spiral plastic support (no heat required)
Features
☉〉 Voltage rating: 18/30kV for medium and high voltage cables
☉〉 Cold shrink design – simple pull‑cord installation, no torches or special tools
☉〉 Excellent electrical stress relief and uniform radial pressure
☉〉 Outdoor rated: UV, ozone, tracking, and extreme weather resistant
☉〉 Reliable long‑term sealing and durable performance in demanding environments
Product Data Sheet
Applicable Cable Cross-Section | 50 ~ 630 mm² |
Maximum System Voltage | 40.5 kV |
System Rated Frequency | 50 Hz |
Maximum Installation Altitude | ≤ 2000 m |
Operating Temperature Range | -55°C ~ +45°C |
Number of Cores | 1 core / 3 cores |
Cable Shield Type | Tape / Wire |
Technical Specifications | |
Parameter | Value |
Rated Voltage | 18/30kV (Max System Voltage: 40.5kV) |
Frequency | 50Hz |
Applicable Cable Cross-section | 50 – 630 mm² |
| Cable Type | XLPE insulation, corrugated aluminum sheath, wire shield |
Number of Cores | Single-core / Three-core |
Insulator Material | Liquid Silicone Rubber |
Installation Method | Angled allowed, upside-down not allowed |
Minimum Creepage Distance | ≥ 400mm (from skirt to end and ground) |
Grounding Options | Tinned copper braid or copper wire |
Terminal Type | Compression lug or shear bolt |
Altitude Suitability | ≤ 2000m |
Operating Temperature | -55°C to +45°C |
Storage Temperature | 0°C to 35°C |
Installation Temperature | 5°C to 35°C |
Product Height | 1010mm |
Creepage Distance | 1260mm |
Weight | 2.8 ~ 3.7kg |
Electrical Testing (According to IEC 60502-4) | |
Test Item | Test Value |
AC Voltage (dry, 5 mins) | 117kV |
AC Voltage (wet, 1 min) | 104kV |
Partial Discharge (at ambient & elevated) | 45kV ≤ 2.8pC |
Impulse Voltage (±10 pulses, 95~100°C) | 200kV |
AC Voltage After Impulse (15 mins) | 65kV |
Humidity Endurance Test (300 hrs) | 32.5kV |
Salt Fog Test (1000 hrs) | 32.5kV |
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