Method of sealing and repairing electrical cables

• US 4,732,628 A
• Filed: 01/30/1987
• Issued: 03/22/1988
• Est. Priority Date: 04/24/1980
• Status: Expired due to Term

• Current Assignee: Thomas & Betts International Incorporated (ABB Limited)
• Original Assignee: Thomas & Betts Corporation (ABB Limited), Zoltan B. Dienes
• Inventors: Dienes, Zoltan B.
• Primary Examiner(s): Dawson, Robert A.
• Application Number:
  US07/008,903
• Time in Patent Office: 417 Days
• Field of Search: 156/48, 156/49, 156/52, 156/54, 156/56, 156/94, 174/5 R, 174/41, 174/70 A, 174/88 R, 174/92, 174/116, 174/136, 174/138 F
• US Class Current: 156/48
• CPC Class Codes: H02G 15/117 for multiconductor cables
• CPC Class Codes: H02G 15/18 protected by sleeves, e.g. for communication cable two-part covers H02G15/10 ; preforms having internal stresses B29C61/00

Abstract

An exposed portion of an electrical cable is sealed by applying a sealant material to the exposed cable and then placing the ends of a split unitary cover over the sealant material in overlapped disposition. The cover is then compressed into contact with the sealant material. In repairing a damaged cable sheath, a reinforcing member may be placed over the sealant material prior to placing the cover thereover.

Claims

1. A method of sealably covering an exposed electrical cable comprising the steps of:

applying sealant material around said exposed cable;

placing a protective cover over said sealant material; and

mechanically compressing said cover into contact with said sealant material to effect a seal between said cover and said cable.

2. A method according to claim 1, wherein said sealant material is applied by wrapping sealant tape over said exposed cable.

3. A method according to claim 1, wherein said sealant material is applied by disposing a quantity of such material onto the exposed cable.

4. A method according to claim 1, wherein said sealant material is applied by first wrapping sealant tape over said exposed cable and then by disposing an additional quantity of sealant material onto said tape.

5. A method according to claim 1, wherein said protective cover contains a coating of sealant on its surface that is arranged to contact said sealant material, such sealant providing a seal between the overlapped portions of said cover.

6. A method according to claim 1, wherein said cover is compressed by retentively maintaining clamping means circumscribingly about said cover.

9. A method according to claim 1 wherein said placing step includes:

overlapping portions of at least one protective cover around said sealant material.

7. A method of repairing a damaged electrical cable comprising the steps of:

applying a sealant material around said damaged cable;

placing a heat-cured protective cover over said sealant material; and

non-heatably compressing said split cover into contact with said sealant material to provide a seal between said cover and said cable.

8. A method according to claim 7, wherein said compressing step is practiced by applying reopenable clamping means circumscribingly about said cover.