Assembly and method for protecitng and insulating a concuit junction

Abstract

Abstract 1431167 Cable joint cover RAYCHEM SA NV 7 Sept 1973 [8 Sept 1972 25 May 1973] 41860/72 and 25199/73 Heading H2E In a cover for a cable splice, rigid tube 3, either slit or in two parts 3, 3a optionally hinged, is fitted possibly by bayonet slots to rigid support rings 4, split or pre-fitted on cable; parts 3, 3a, 4 may be of metal or insulating material. Dilated heat-shrinkable sleeve 1 is coated with adhesive meltable sealant 5 preferably non- bonding to 3, 3a. Laminar comb-like prong assembly, of, e.g. Al, (Fig. 5, not shown), may be fitted longitudinally outward of rings 4, sleeve 1 then being extended beyond the prongs with sealant only from their midpoints outward (Fig. 6, not shown). On heating, sleeve 1 shrinks as in Fig. 2, gripping tightly tube 3, 3a and becoming sealed to cable sheaths 8 and to the ends of rings 4 or to the prongs, which smooth out the radial step (Fig. 7, not shown). After a joint cover has been opened neat its centre section only, the unsealed part of sleeve 1 may be removed, to be replaced by a new short heat shrinkable sleeve (Fig. 3, not shown). If the whole cover has been opened the sealed parts of sleeve 1 may be removed by heat softening of the sealant, after which a new sleeve 1 may be fitted (Fig. 4, not shown). In both methods the sleeve 1 is made split with lipped edges, closed after emplacement by a C strip (as in Specification 1,155,470) before heat shrinking. Sealant is applied over the whole length of the replacement sleeve, and is melted when heat is applied to shrink this sleeve.

Inventors

No inventors recorded.

Bibliographic Details