part iii) electricity prices and costs of coating joints of electric cables, applicable to most cables of different diameter, with insulating layer that allows residual deformation.

摘要

The invention relates to a storable coating element for electrical cable joints to be applied to several cables of different outer diameters, comprising a tubular support (11) and a sleeve (10) fitted thereon, in which the sleeve has one or more coaxial layers (10a, 10b, 10c) consisting of compounds of cross-linked polymeric materials, at least one of which (10b) is electrically insulating, and is fitted on the tubular support (11) under conditions of elastic radial expansion: the sleeve has a wall of great thickness and is expanded in a range comprised between a minimum value (Dm) given by an imposed expansion value corresponding to an instantaneous elastic return adapted to cause a predetermined degree of elastic interference with the smallest one of the intended cables, and a maximum value (DRam) corresponding to a permissible expansion value with respect to the ultimate expansion of the material used.