Heat Shrink Power Cable Joints- A New Way to Secure Electrical Installation

heat shrink

Cable jointing is an indispensable exercise for electrical engineers. High expectations are placed on this skill because a cable joint protects cables against dust, moisture ingress, and penetration impact of foreign objects. A range of cable jointing systems and termination kits is available to facilitate engineers to distribute and supply electricity securely at medium/high voltages in transformer terminals, switchgear, air-insulated cable boxes, poles, etc. The emergence of heat shrink technology and time-tested beneficial results strengthen the confidence of end users to use this technology for better security measures to protect their electrical installations. The increasing use of heat-shrink cable joints, heat shrink cable sleeves, and other accessories is the result of expanding range of the product line in each category.

Emergence of Heat Shrink Cable Joints as the Robust Insulation Measure

Cable joints play a key role in the performance of electrical installations and electronic systems. These are used to connect power cables ensuring the continuity of electric current. Different types of heat shrink cable joints are used in industrial and large commercial electrical installations; the selection depends upon the intended application and on-site condition. Similarly, heat shrinkable terminations are made available by the leading manufacturers of heat shrink electrical insulation accessories to facilitate engineers for terminating the power cables securely. Heat shrink accessories shrink to their original size when exposed to heat with an electric or gas heat gun; the phenomenon simplifies the power cable insulation task for engineers. https://www.youtube.com/watch?v=2h41GJ_jH20

Types of Heat Shrink Cable Joints for Diverse Needs

  • GXLT/GPLT Cable Joints: Suitable for 1, 2, 3, 3 & 4 Core PVC / XLPE/ PILC cables upto3.3kv
  • GXS/1236kv Cable Joints: Suitable for 3 Core XLPE/PVC insulated cables for upto 36kv with black Streess Control Sleeve
  • GXSS 1236 Cable Joints: Suitable for single core XLPE/EPR/PVC insulated cables for upto 36kv
  • GPS/1112 Cable Joints: Suitable for 11kv 3 core PILC cables upto 16 to 630 sq.mm. cable size
  • GPS/2436 Cable Joints: Suitable for upto 33kv 3 core screened PILC cables (24 kv & 36 kv Series) upto 25 to 500 sq.mm. cable size
  • GTJ/1112kv Cable Joints: Suitable for 3 Core XLPE/PILC Cables upto 12kV upto 3×16-35 to 3×630 sq.mm. cable size
  • GTJ/2436 kv Cable Joints: Suitable for 3 Core XLPE/PILC Cables upto 36Kv upto 25 to 3×63 500 sq.mm. cable size

Heat shrink power cable joints are made available in a kit form that contains all the installation aids and accessories required to complete a perfect heat shrink joint.

Selection of Proper Power Cable Joints

Switching to any other methodology from a traditional methodology is done with expectations of getting better results; the same is the case when people start using heat shrink cable joints leaving the conventional practice of using PVC tape. The performance of cable joints depends upon the selection of the right cable joints based on-

  • Cable type (structure, material, insulation)
  • Cable size (thickness)
  • Cable conductors
  • Power rating (voltage)
  • Required strength and mechanical protection
  • On site environmental conditions

The leading cable joint manufacturers and suppliers offer a broad spectrum of heat shrinkable joint products for secure splicing of extruded dielectric shielded power cables in straight and transition styles.

Pro-tip

Heat shrink cable joints need less space and add less weight to cable installations if compared to traditional resin cable joints.