| 摘要 |
A high voltage disconnector blade isolated by air for external use in networks of transmission and distribution of high voltage; the blade or switch includes two contact or disconnection blades assembled parallel therebetween over a front base provided with a joint mechanism, a rear base provided with a spin main axis perpendicular the blades, said axis allowing the straight body of the two parallel blades that make contact and conduct the electricity to rotate. The blade mainly has two stainless steel axes that support two contact blades in a parallel arrangement and a copper transversal block for compensating the current, said contact blades being fastened by free flotation, i.e., these are self-aligned; also includes stainless steel support plates adhered to the contact blades by means of stainless steel screws and by the main axes; at the front base the blade has a device of the ring tin type adapted for opening and closing the circuit (connection and disconnection); the front and rear bases have at least a U-shaped contact finger, a spring for providing pressure to both end portions of the contact finger, said spring being made of stainless steel, and an aluminium spring support bridge. In a close contact position, the blade being interacted and brought into contact with the end portions of the contact fingers.
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