Patent ID: 7805837

Claim:
A method of installing a recoverable electrical insulating device having a bore therein for placing a prepared electrical cable member therethrough comprising the steps of: (a) providing a mandrel means having a first end of a first diameter and a second end of a second diameter larger than said first diameter of said first end, comprising a tapered exterior surface between said first end and said second end and a bore therethrough from said first end to said second end, wherein exterior surface of said mandrel comprises ribs; (b) providing lubrication means for lubricating said exterior surface of said mandrel; (c) placing said bore of said mandrel onto said prepared electrical cable member; (d) forcing said recoverable electrical insulating device over said mandrel and said prepared electrical cable member thereby expanding at least a portion of said recoverable electrical insulating device to allow for lubrication to remain within the internal cavity of said recoverable electrical insulating device within the voids between the ribs of said mandrel; and (e) contraction means for providing a snug fit around said prepared electrical cable.