초록 ▼

Loadbreak connectors which are modified to reduce the probability of flashover upon disassembly operation of a loadbreak bushing insert from a power cable elbow connector. The loadbreak bushing insert and power cable elbow connector are mated with an interference fit between an elbow cuff and a tran

Loadbreak connectors which are modified to reduce the probability of flashover upon disassembly operation of a loadbreak bushing insert from a power cable elbow connector. The loadbreak bushing insert and power cable elbow connector are mated with an interference fit between an elbow cuff and a transition shoulder portion of the loadbreak bushing insert. The bushing insert is provided with vents to vent a cavity formed between the elbow cuff and the transition shoulder portion of the bushing insert with ambient air to avoid a decrease in pressure within the connection region and avoid a decrease in the dialectric strength of the air therein thus preventing flashover. Alternatively, the power cable elbow includes an insulative layer covering a portion of the probe to increase the distance between the energized electrode and ground. Another structure which increases the distance from the energized electrode to ground includes an insulative material covering an upper portion of the bushing insert receiving opening within the conductive insert portion of the power cable elbow connector.

대표청구항 ▼

[ What is claimed is:] [1.] A loadbreak bushing insert comprising:an insulative outer housing having an axial bore therethrough,a conductive member positioned within the axial bore of the housing;wherein the outer housing includes three sections, a first end section being dimensioned to be sealed in

[ What is claimed is:] [1.] A loadbreak bushing insert comprising:an insulative outer housing having an axial bore therethrough,a conductive member positioned within the axial bore of the housing;wherein the outer housing includes three sections, a first end section being dimensioned to be sealed in a bushing well, a second end section being dimensioned for insertion into a power cable elbow connector and a mid-section being radially larger than the first and second end sections, the mid-section including a conductive portion for attachment of a ground conductor, and the outer housing having a transition shoulder portion between the second end section and the mid-section, the transition shoulder portion including a vent for venting an annular top surface of the transition shoulder portion with a longitudinal side surface of the housing mid-section.