35kv Single Core Three Core Cold Shrink Cable Terminal Head High Voltage

The 35kV cold shrink cable termination kit is a high-performance medium-to-high voltage cable accessory designed for XLPE power cable systems. It uses advanced pre-expanded silicone rubber technology that automatically shrinks into position once the support core is removed, ensuring fast installation, reliable insulation, and long-term electrical stability.

This product is widely used in power transmission and distribution systems, including substations, renewable energy plants, and industrial power networks.

Key Features

1. Cold Shrink Technology – No Heat Required

The termination is pre-expanded in a factory-controlled state on a removable support tube. During installation, the core is simply pulled out, and the silicone rubber body shrinks uniformly to form a tight seal around the cable. This eliminates the need for heat guns or open flames, making installation safer and more efficient.

2. High-Quality Silicone Rubber Insulation

Made from premium-grade silicone rubber with excellent dielectric strength, UV resistance, and anti-aging properties. It maintains stable performance even under harsh outdoor conditions such as humidity, pollution, and salt fog.

3. Optimized Electrical Stress Control

Built-in stress control cone ensures uniform electric field distribution at the cable termination point, significantly reducing partial discharge risk and improving long-term operational reliability at 35kV voltage level.

4. Superior Waterproof & Environmental Protection

The integrated sealing structure provides excellent moisture resistance and environmental protection. Once installed, it achieves high-level sealing performance suitable for underground, outdoor, and coastal environments.

5. Wide Cable Compatibility

Compatible with both single-core and three-core XLPE power cables, suitable for copper and aluminum conductors with multiple cross-sectional size options.

Application Areas

The 35kV cold shrink cable termination kit is widely used in:

• Power transmission and distribution substations
• Underground urban cable networks
• Wind power and solar photovoltaic power stations
• Industrial facilities (mining, metallurgy, chemical plants)
• Power generation plants
• Rail transit and infrastructure projects

Advantages Compared to Heat Shrink Termination

• No heating tools required → safer installation
• Faster installation time → improves efficiency by up to 50%
• Consistent sealing performance → factory-controlled expansion
• Reduced labor skill requirements
• Lower maintenance cost over lifecycle

FAQ

Q1: What is the main difference between cold shrink and heat shrink cable terminations?

Cold shrink uses pre-expanded silicone rubber that contracts naturally after removing the support core, while heat shrink requires a heat source to shrink the material. Cold shrink is safer and faster.

Q2: Is this termination suitable for outdoor installation?

Yes. The silicone rubber material provides excellent UV resistance, weather resistance, and long-term outdoor stability.

Q3: What cable types are compatible with this product?

It is designed for 35kV XLPE insulated single-core and three-core power cables with copper or aluminum conductors.

Q4: Does installation require special tools?

Only basic cable preparation tools and crimping tools are needed. No torch or heat gun is required.

Q5: What is the expected service life?

Under normal operating conditions, the service life can exceed 20 years.