Dianci bileiqi, 1991 对高压电器套管（其中包括变压器套管）给了专利权。此套管的传统结构均采用导电管或导电杆,与瓷套同轴安装,两端有螺纹作为外接导体用。这种结构的缺点在于当把端子拧入导杆螺纹过劲时或运行时可能使导电杆端部损坏,为消除此缺点,提出了改进高压套管的结构。其特点是在导电杆的一端制成一定深度的内螺孔,拧入有外螺纹的不太长的插头 ...
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