TE Connectivity Raychem Heat Shrink Joints

For voltage classes up to 72.5 kV power cables

Heat Shrink Jointing

high voltage cable jointThe Raychem Heat-Shrink Joint EHVS

The joint is based on a heat-shrink design for voltage classes up to 72.5 kV. Polymeric insulated cables of various designs can be adapted with respect to shielding and metal sheath. Our heat-shrink accessories have been used by utilities and industrial companies around the world for more than 35 years. This ongoing field experience has made TE Connectivity a leader in materials science and technology for high-voltage applications. The TE Energy materials technology is at the core of the development of our heat shrink joints. The materials used in our cable accessories have been extensively optimized with respect to product design and function, manufacturing and expected service environments. Furthermore the system is suitable for paper and polymeric cable constructions and is also designed to accommodate modern jointing requirements such as mechanical shear bolt connectors.

Heat-Shrink Technology

The conductive outer layer (1) together with the insulating middle layer (2) represents the heat shrinkable hold out for the inner elastomeric layer (3) of the joint body. During the shrinking process the stored recovery force of the elastomeric layer is released and adds up to the recovery force generated by the heat shrinkable outer layers of the joint body. The resulting high compression forces as well as the perfect ability of geometrical adjustment provides tight electrical interfaces and a perfect seal against moisture ingress. The elastomeric properties of the inner insulation layer of the joint body allow for any cable diameter compensation and adjustment resulting from the load cycling of the cable. At the same time the two outer heat shrinkable layers provide a tight and rigid belt for the joint body representing a high level of mechanical protection against outer environmental influences.

Links

Cable Services web link: TE Connectivity Heat Shrink Joints

Cable Services Catalogue PDF: Heat Shrink Jointing
catalogue

High Voltage Cable Accessories Sales Enquiry

Cable Services are able to offer full technical support for the full product range of high voltage cable joints and termination products.
Please contact one of our sales offices for product information and technical specifications.
Wrexham - Tel: 01978 340 450 - Email Enquiry
Stone - Tel: 01785 825 970 - Email Enquiry
Liverpool - Tel: 0151 933 9022 - Email Enquiry
Glasgow - Tel: 0141 621 2060 - Email Enquiry