| 摘要 |
FIELD: electrical engineering; main contact blades of disconnecting switches and blades of ground electrodes. ^ SUBSTANCE: proposed high-voltage apparatus contact blade has current-carrying blade with bars suspending from current-carrying blade to form split part. Each bar has electric contact surface, load-carrying contact, and deicing shell. The latter is made in the form of enclosure installed in split part of bars. Through notch is made in enclosure at least above mentioned electric contact surface. Enclosure is made of material characterized in low adhesion to ice and also of heat-shrinkable material characterized in low adhesion to ice. Enclosure can be provided with its internal through holes disposed on longitudinal axis of bars and also it can be made of cellular-structure material. ^ EFFECT: enhanced deicing efficiency of all bars at slight force required for ice chipping, simplified design of deicing shell characterized in minimal quantity of parts and minimal mass due to small thickness at low material density. ^ 5 cl, 4 dwg |
