High voltage cable splice protector

• US 4,684,764 A
• Filed: 12/09/1985
• Issued: 08/04/1987
• Est. Priority Date: 12/09/1985
• Status: Expired due to Fees

• Current Assignee: Thomas & Betts International Incorporated (ABB Limited)
• Original Assignee: Amerace Corporation (ABB Limited)
• Inventors: Luzzi, Glenn J., Kominiak, Andrew A.
• Primary Examiner(s): NIMMO, MORRIS
• Application Number:
  US06/806,591
• Time in Patent Office: 603 Days
• Field of Search: 174/91, 174/93, 339/90 R, 339/209
• US Class Current: 174/91
• CPC Class Codes: H02G 15/013 Sealing means for cable inlets inlets for cables filled with, or surrounded by, gas or oil H02G15/32
• CPC Class Codes: H02G 15/115 Boxes split perpendicularly to main cable direction

Abstract

A two piece, plastic, bayonet locking housing for assembly over a high voltage cable splice to protect the splice and exposed concentric neutral wires. End seals are provided at the cable entrances to the housing to prevent the entrance of dirt and moisture and take the form of closely conforming rubber tubes. The rolled tubes are mounted on the slotted cable entrance ends of the housings and held there by the hoop forces of the housing. Radial displacement of the housing ends reduces these hoop forces permitting the tubes to start to unroll and the tubes are fully extended over the housing ends and onto and over a portion of the cables.

Claims

1. A cable splice enclosure comprising;

rigid, hollow receptacle housing means having a first end and a second end;

rigid, hollow plug housing means having a first end and a second end;

the outside and inside diameters of said receptacle housing means and said plug housing means adjacent said first ends are of a first predetermined value and define, respectively, receptacle housing means body portion and plug housing means body portion; and

the outside and inside diameters of said receptacle housing means and said plug housing means adjacent said second ends are of a second predetermined value less than said first predetermined value and define, respectively, receptacle housing means end portion and plug housing means end portion;

the lengths of said receptacle housing means end portion and said plug housing means end portion being short compared to the lengths of said receptacle housing means body portion and said plug housing means body portion;

each of said receptacle housing means end portion and said plug housing means end portion have at least two longitudinal slots extending inwardly from said second ends towards said first ends of said respective receptacle housing means and plug housing means for substantially the entire lengths of said receptacle housing means end portion and plug housing means end portion whereby said second predetermined values may be decreased;

bayonet locking means joining the first end of said receptacle housing means to said first end of said plug housing means upon relative rotation therebetween; and

end sealing means, one adjacent each of said second ends of said receptacle housing means and said plug housing means for sealing the electrical cables entering through said second ends of said receptacle housing means and said plug housing means into said enclosure.

2. A cable splice enclosure as defined in claim 1, wherein each of said end sealing means are rolled lengths of tubing positioned respectively upon said receptacle housing means end portion and said plug housing means end portion.

3. A cable splice enclosure as defined in claim 2, wherein each of said end sealing means is retained in its rolled condition by the hoop forces in said respective receptacle housing means end portion and said plug housing means end portion and are caused to unroll by the reduction of said hoop forces due to the inward deflection of the segments of said receptacle housing means end portion and said plug housing means end portion between said longitudinal slots.

4. A cable splice enclosure as defined in claim 1, wherein said receptacle housing means and said plug housing means each have a tapered transition portion between said portions of first and second predetermined diameter values.