Arc protection arrangement for covered overhead power distribution lines
AssigneeWestinghouse Electric Corp.
InventorsDerrill F. Shankle, Jeffrey L. Maitlen
Life of this patent
Estimating the term…
Abstract
A covered distribution wire is provided with a clamp device having sufficient mass to provide conductor protection against damage from fault current arcs over a section of the conductor where the insulation cover is removed for interconnection or insulator support purposes. The clamp mass is at least a minimum value needed for practicality in usage and otherwise is based on the fault energy to be absorbed from fault arcs in the expected usage.
Claims4
An arrangement for protecting an overhead power distribution line having an insulation cover against damage from fault current arcing, said arrangement comprising a portion of the line having a section of its insulation cover removed to form an insulation cover end face and to expose a section of the line conductor for interconnection or support, and a conductive arc protection clamp device secured in conductive contact with said conductor section and having substantial heat sink mass to provide sufficient arc energy absorption for line conductor protection, said clamp device having at least a portion thereof substantially surrounding and shielding said conductor section to function as an arc terminus.
Dependencies are inferred from the claim text.