Vacuum switch with an insulating strut
AssigneeSiemens Aktiengesellschaft
InventorsSiegfried Jahrig, Wolfgang Opitz
Life of this patent
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Abstract
In a vacuum switch having a switching tube arranged between a head piece and a base, each of which is fastened to a support insulator, the head piece and the base being further connected by at least one insulating strut which has, at least one end, a transverse hole for fastening means, a longitudinal hole which goes through the transverse hole and which contains a conducting part begining at the transverse hole and is rounded at the closed end of the longitudinal hole is provided. The conducting part improves the dielectric strength of the insulating strut and may be made of one or more parts.
Claims7
In a vacuum switch including an electrically conducting head piece held by a support insulator;
- a base held by a further support insulator;
- a switching tube arranged between the head piece and the base;
- and at least one insulating strut which connects the head piece and the base, said strut having, at each end, a transverse hole for receiving fastening means, the improvement comprising:
- (a) at at least one end of the insulating strut, a longitudinal hole which has one end open at said end of said strut, goes through the transverse hole, and extends over part of the total length of the insulating strut, terminating in a closed end;
- and
- (b) an electrically conducting part disposed in said longitudinal hole which extends over part of the total length of the insulating strut beginning at least at the transverse hole, said electrically conducting part being rounded at its end facing the closed end of the longitudinal hole.
Dependencies are inferred from the claim text.