TE Connectivity (TE), Raychem Heat Shrink Joint (EHVS-H) 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. 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.
The conductive outer layer together with the insulating middle layer represents the heat-shrinkable hold out for the inner elastomeric layer 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 outstanding ability of geometrical adjustment provides tight electrical interfaces and a highperforming seal against moisture ingress.