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

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.

F.T Cable Co., Ltd. is a professional cable manufacturing factory specializing in overseas export markets, integrating cable R&D and design, large-scale production, personalized customization, and export trade. Rooted in China's power cable industry cluster, the company focuses on serving the global market, providing one-stop, customized power transmission solutions to overseas traders, engineering contractors, new energy project owners, power grid construction units, and industrial supporting enterprises. Its products cover multiple countries and regions in Asia, Europe, the Middle East, Africa, and the Americas. With stable quality, flexible customization, and efficient delivery, the company has established long-term and stable cooperative relationships and a good market reputation in the overseas cable procurement field.

The company has a complete product system, with core products including high-voltage cables, photovoltaic cables, XLPE cross-linked polyethylene insulated cables, and overhead cables. It can also produce a full range of cable products, including various conventional power cables, flame-retardant cables, weather-resistant special cables, and building wires, to meet the needs of different overseas project scenarios. High-voltage cables are suitable for large-scale power transmission trunk lines, urban power grid upgrades, mine power supply, and high-voltage power distribution in large industrial plants. Photovoltaic cables are specifically designed for centralized photovoltaic power stations, distributed photovoltaic projects, and outdoor new energy projects, possessing excellent properties such as UV resistance, high and low temperature resistance, aging resistance, and mechanical damage resistance. XLPE insulated cables offer stable insulation performance, high heat resistance, and long service life, and are widely used in building power distribution, industrial power supply, and municipal engineering. Overhead cables are suitable for complex outdoor environments such as outdoor overhead wiring, urban and rural power grids, and mountain power transmission. All products are manufactured in strict accordance with international industry standards and can be matched with corresponding certifications according to the regulations of the target country or region, meeting overseas engineering construction specifications.

As a source cable factory specializing in customized production, customized services are our core differentiating advantage. Unlike ordinary traders and standardized manufacturers, we possess full-chain customization capabilities, from scheme design and parameter adjustment to mold opening, production, and mass delivery. Leveraging its own modern production plant, fully automated production equipment, professional R&D team, and flexible production workshop, the company can deeply respond to the diverse, personalized, and special operating conditions required by overseas clients. It supports customization of different voltage levels, conductor cross-sectional areas, insulation sheath materials, flame retardant ratings, acid and alkali resistance, waterproofing, termite resistance, cold and heat resistance, UV resistance, and other special properties. Cable structure, color, length, markings, and export packaging can be adjusted as needed to adapt to the special installation environments and project standards of overseas projects. For large-scale overseas infrastructure, new energy projects, and power grid renovation projects, the company provides one-on-one technical services including dedicated technology selection, sample making, drawing coordination, and parameter optimization, truly achieving on-demand production and precise matching of client project needs.

In addition to customization capabilities, rapid response and efficient service are another core competitive advantage. The company has established a dedicated service system for overseas clients, equipped with a professional foreign trade business and technical liaison team. This ensures efficient response throughout the entire process, from pre-sales consultation, technical communication, quotation calculation, sample confirmation, order scheduling, production follow-up, logistics, and after-sales feedback, significantly shortening communication and delivery cycles. For urgent overseas orders and projects requiring expedited completion, production schedules can be flexibly adjusted to prioritize order delivery and efficiently address the pain points of overseas customers facing tight deadlines and fluctuating demands.

Regarding quality control, the factory has established a rigorous end-to-end quality inspection system. From the inspection of raw materials such as copper, insulation, and sheathing materials upon arrival, to conductor stranding, insulation extrusion, cabling, and sheathing, and finally to comprehensive testing of finished products including withstand voltage testing, insulation resistance testing, flame retardant aging testing, and mechanical performance testing, every process is strictly controlled to ensure the safety, stability, and performance compliance of exported products.

For many years, F.T Cable Co., Ltd. has adhered to its core strengths in source customization, stable and high-quality products, and fast and efficient service. Deeply rooted in the overseas power cable market, the company continuously optimizes its customized production capabilities and export service system, committed to providing global customers with highly adaptable, cost-effective, and customizable professional cable products, becoming a trusted long-term strategic partner in overseas engineering construction, new energy development, and power grid upgrades.