High voltage protection barrier

Electricity: conductors and insulators – Electric shock hazard protective devices – Shock protection – grounding devices

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Details

24512, 24517, 174 40R, H02G 102

Patent

active

047075627

ABSTRACT:
A protection barrier is adapted to be placed on an insulator of a high voltage power pole to prevent a workman from contacting components of the pole when working on an energized conductor. A base plate of dielectric material is formed with a V-shaped slot and is placed on the insulator with the apex of the slot being located between adjacent skirts of a post type insulator. A pair of dielectric locking plates are pivotally mounted on the base plate and when in an open position permit the insulator to enter into the V-shaped slot and when in closed position lock the base plate on the insulator. The locking plates have aligned curved notches which form a generally circular-shaped opening when in closed position and which align with the apex of the V-shaped slot. Curved surfaces of the notches engage the insulator when the base plate is placed thereon to positively move the locking plates into clamping position about the insulator. Each of the clamping plates has an offset panel which forms an envelope opening for receiving a portion of the base plate therein to maintain the locking plates in juxtaposition to the base plate.

REFERENCES:
patent: 2566841 (1951-09-01), LaDuca
patent: 2770667 (1956-11-01), Runde
patent: 2891751 (1959-06-01), Raypholtz
patent: 3586292 (1971-06-01), Buck
patent: 3835238 (1974-09-01), West
McGraw, Michael G., "Joint Effort Yields New Barrier Design" Electrical World, vol. 199, No. 1, Jan. 1985, pp. 85 and 86.

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