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Heat Shrink

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Heat Shrink Cable Joints: Enhancing Electrical Connectivity with Reliability

NKS POWER is a professional manufacturer of heat shrink cable joint and commits to supply the product with high-quality standards. These supply as critical components for connection and protection of cables mostly inside systems used for power transmission and distribution. Making full use of the shrinkage property from heat-shrinkable materials, they encapsulate the section area of cable joints with insulating electrical means including mechanical protection plus environmental sealing against moisture invasion, among others. In response to various demands by offering great performance reliability as well as strong support toward steady functioning within any power system, NKS POWER sells its products.

Ⅰ. Features of Heat Shrink Cable Joints

  • It is composed of a blend of various material components such as polyethylene, ethylene vinyl acetate (EVA) and ethylene propylene rubber.

  • High mechanical strength, suitable for a variety of power cables

  • Strong UV resistance and strong weather resistance

  • Has excellent insulation properties, corona resistance and tracking resistance

  • Simple design and reasonable structure

  • Built-in stress control, uniform electric field distribution

  • Suitable for copper and aluminum cables

  • Suitable for crimp lugs and mechanical lugs

  • Quick assembly and simple installation

Ⅱ. Advantages Of  Heat Shrink Cable Joints

As an experienced heat shrink cable joint manufacturer, NKS POWER's heat shrink cable joint products offer the following distinct advantages:

1. Excellent Electrical Properties 

Insulating heat shrink products are made from premium raw materials with careful quality and test control. They offer excellent electrical insulation properties so that short circuits or leakages do not take place and the system operates safely.

2. Strong Mechanical Protection 

After heating and shrinking, it sticks close to the surface of the cable creating a tough layer of protection against external mechanical impact as well as any type of physical damage that can be caused to the joint itself.

3. Customized Solutions

As a professional heat shrink cable joint manufacturer, NKS POWER provides tailored heat-shrink cable joint solutions based on specific customer requirements, meeting diverse individual needs.

Ⅲ. Application Scenarios

NKS POWER's heat shrink cable joints are widely used in the following fields:

1. Power Systems

In power plants, substations, transmission lines, and other electrical facilities, heat shrink cable joints connect and protect cables, ensuring stable power transmission and distribution.

2. Industrial Sector

In chemical, metallurgical, and mechanical manufacturing industries, heat shrink cable joints connect cables for various equipment and facilities, safeguarding normal industrial operations.

3. Construction Industry

In the indoor wiring system, heat-shrink cable jointing will connect the indoor wire circuit and ensure safe and reliable operation of the building electrical infrastructure.

4. Telecommunications Industry

It is at a base station and inside a data center where heat-shrink cable jointing for communication cable provides stable communication signal transmission.

5. Transport Infrastructure

At facilities for transport by subway, railways, and highways, cable joints with heat shrink connect cables of traffic signal systems and lighting systems to support the normal operation of the infrastructure for transport

Ⅳ. Operational Guidelines

To ensure the correct installation and use of heat-shrink cable joints, NKS POWER provides the following operational guidelines:

Preparation: Before installation, prepare necessary tools and equipment such as a heat gun, cleaning tools, and cable stripping tools. Additionally, ensure the cable surface is clean, dry, and free of oil or contaminants.

1. Cable Stripping

Based on the cable specifications and joint requirements, use stripping tools to remove the insulation and sheath to an appropriate length, exposing the conductor.

2. Installing the Heat-Shrink Cable Joint

Position the heat-shrink cable joint over the stripped section of the cable, ensuring correct alignment. Use a heat gun to uniformly heat the heat-shrink cable joint, causing the material to contract and tightly adhere to the cable surface. Carefully control temperature and heating duration during this process to prevent material damage from overheating.

3. Inspection and Testing

After installation, thoroughly inspect the heat-shrink cable joint to ensure a secure connection with no looseness. Conduct electrical performance tests on the joint using specialized equipment, such as insulation resistance and withstand voltage tests, to verify compliance with specifications.

4. Care and Maintain

In the cause of use, it should be periodically viewed by its appearance and function. Damaged parts or aging components should be repaired or replaced soonest. Cleanliness and dryness would help avoid degradation due to the environment.


NKS Power adheres to the concept of environmental friendliness and smart connection, and is willing to work with you to create green and sustainable development, leading smart technology power industry.

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