发明名称 |
Improvements relating to electrical surge arresters |
摘要 |
An electrical surge arrester is manufactured by securing a stack of metal oxide varistor blocks between end terminations by passing a rod through through-holes in the varistor blocks and securing the ends of the rod to the end terminations. The through-holes are larger than the rod cross-section and a silicone rubber material is injected into the void which otherwise would exist between the rod and the interior surfaces of the through-holes in the varistor blocks. The silicone rubber material is also moulded around the exterior of the stacked varistor blocks and forms a shedded external housing for the arrester. The silicone rubber coatings on the varistor block internal and external surfaces effects a passivation function and means that the passivation coatings normally provided on the surfaces of varistor blocks by their manufacturers at significant cost can be omitted. |
申请公布号 |
AU6304298(A) |
申请公布日期 |
1998.09.18 |
申请号 |
AU19980063042 |
申请日期 |
1998.02.25 |
申请人 |
BOWTHORPE INDUSTRIES LIMITED |
发明人 |
RODNEY MEREDITH DOONE;PATRICK GEORGE SHORT |
分类号 |
B29C45/14;B29C70/72;H01C7/12;H01C8/04 |
主分类号 |
B29C45/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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