Cable termination and method of manufacture
A cable termination includes a cable end of a cable having a protective outer jacket and an overmolded sealant. The cable termination is manufactured using a method having the steps of providing a cable end of a cable having a protective outer jacket, preparing the protective outer jacket of the cable end such as to promote adhesion with a sealant, and overmolding the cable end with a sealant.
1. A method of manufacturing a cable termination, the method comprising:
providing a cable end of a cable having an insulation jacket;
preparing the insulation jacket of the cable end to promote adhesion with a sealant; and
overmolding the cable end with a sealant, wherein the sealant is a polyurethane (PUR) material provided as a protective outer jacket of the cable termination to form a watertight and sealed outer enclosure of the cable.
2. The method according to claim 1 , wherein the insulation jacket is a non-polyvinyl chloride material comprising at least one of polyolefins, copolymers of polyolefins, crosslinked polyolefins, and their copolymers.
3. The method according to claim 1 , wherein the step of preparing the insulation jacket comprises:
applying a tape onto the insulation jacket of the cable end.
4. The method according to claim 3 , wherein the tape is an adhesive tape.
5. The method according to claim 3 , wherein the tape is a polyvinyl chloride tape.
6. The method according to claim 3 , wherein the tape is a polyethylene terephthalate tape.
7. The method according to claim 6 , wherein the tape is a polyethylene terephthalate cloth tape.
8. The method according to claim 1 , wherein the step of preparing the insulation jacket comprises:
applying a cold melt onto the insulation jacket of the cable end.
9. The method according to claim 1 , further comprising the steps of:
positioning an annular elastic sealing ring around the cable end;
positioning a sleeve made of heat shrinkable material over the sealing ring;
heat shrinking the sleeve to exert a compressive force onto the sealing ring; and
overmolding the sleeve, the sealing ring, and an adjacent region of the cable end with the sealant.
10. The method according to claim 9 , wherein the cable end is positioned in a conductive housing and wherein the sleeve is positioned to partly surround the housing.
11. The method according to claim 9 , wherein an adhesive is applied to an inner surface of the sleeve.
12. The method according to claim 1 , wherein the step of preparing the insulation jacket comprises:
applying a rubber or silicone material onto the insulation jacket of the cable end.
13. The method according to claim 12 , wherein the material is selected from a list consisting of a polyvinyl chloride material, a rubber, a polytetrafluoroethylene material, or a silicone material.
14. The method according to claim 1 , wherein the step of preparing the insulation jacket comprises:
plasma treating or corona treating the insulation jacket of the cable end.
15. The method according to claim 1 , wherein the step of preparing the insulation jacket comprises:
chemically treating the insulation jacket of the cable end with a solvent.
16. The method according to claim 1 , wherein the step of preparing the insulation jacket comprises:
mechanically treating the insulation jacket of the cable end, the mechanical treatment selected from a list consisting of:
roughening the insulation jacket using an abrasive material;
sand blasting the insulation jacket;
soda blasting the insulation jacket; or
brushing the insulation jacket.
17. A cable termination comprising a cable end of a cable having an insulation jacket, and an overmolded sealant, manufactured using a method comprising:
providing a cable end of a cable having an insulation jacket;
preparing the insulation jacket of the cable end to promote adhesion with a sealant; and
overmolding the cable end with a sealant, wherein the sealant is a polyurethane (PUR) material provided as a protective outer jacket of the cable termination to form a watertight and sealed outer enclosure of the cable.
18. The cable termination according to claim 17 , wherein the insulation jacket of the cable end is made of a non-polyvinyl chloride material.
19. The cable termination according to claim 18 , wherein the non-polyvinyl chloride material comprises at least one of a polyolefin, copolymers of polyolefins, crosslinked polyolefins, and their copolymers.
20. The cable termination according to claim 17 , comprising a plug, a socket, a Y-splice, H-splice, or T-splice.