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64/110kV Composite insulation outdoor termination
Application
IEC 60840 / IEEE 48 HV composite outdoor termination (64/110kV). For EHV extruded XLPE cable to overhead line connections, GIS bay take-offs, and substation portals. Pre-fabricated composite hollow core insulator with silicone sheds, integrated stress cone. Dry-type, oil-free, heavy pollution class V, seismic withstand.
Core Strengths
Conventional porcelain/filled HV terminations risk oil leaks, heavy weight, and seismic failure. Our 64/110kV composite termination is dry-type, oil-free, pre-formed stress cone, silicone sheds, lighter weight, seismic proof, meets IEC 60840/IEEE 48.
Standard
GB/T 11017.3-2014 IEC 60840-2011
Construction
☉〉 Conductor connection: Compact compression connector
☉〉 Stress control: Integrated stress cone (high‑elasticity silicone/EPDM)
☉〉 Insulation body: Composite insulator (silicon rubber sheds + fiberglass reinforced core)
☉〉 Sealing: Internal mastic/ adhesive for moisture and weather protection
☉〉 Mounting: Flange or bracket for tower/pole installation
Features
☉〉 Voltage rating: 64/110kV (suitable for 66/110kV systems)
☉〉 Composite design provides excellent tracking and UV resistance
☉〉 Lightweight compared to porcelain terminations
☉〉 Hydrophobic silicone rubber sheds improve outdoor pollution performance
☉〉 Reliable long‑term operation with minimal maintenance
Product Data Sheet
Technical Specifications | ||
Section | Item | Specification |
Operating Conditions | Maximum System Voltage | 126 kV |
Rated Frequency | 50 Hz | |
Altitude | ≤ 2000 m | |
Operating Temperature | -55°C ~ +45°C | |
Storage Temperature | 0°C ~ +35°C | |
Installation Temperature | 5°C ~ +35°C | |
Cable Shield Types | Tape / Wire / Corrugated Aluminum | |
Design Data | Height | 1980 ± 50 mm |
Weight (Excl. Cable) | 140 kg / 309 lbs | |
Creepage Distance | ≥ 4050 mm | |
Bending Moment Resistance | ≥ 2000 kN | |
Horizontal Tensile Strength of Connecting Wire | ≥ 2 kN | |
Internal Withstand Pressure | 1.6 MPa | |
Breakdown Pressure | 2.0 MPa | |
Filling Fluid | PIB / Gel | |
Electrical Performance | Heating Cycle Withstand Voltage | 152 kV |
Lightning Impulse Withstand Voltage (1.2 μs / 50 μs) | 650 kV | |
AC Withstand Voltage (IEC 60840 Routine Test) | 190 kV | |
Partial Discharge @ 114 kV | ≤ 3.6 pC (No detectable discharge beyond declared sensitivity at ambient & elevated temperatures) |
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