| 摘要 |
The present invention relates to a lightning conductor of the known type comprising: a stack of varistors, two contact parts made of an electrically conducting material and placed respectively on the ends of the stack of varistors, and a casing made of composite material and surrounding the stack of varistors, characterised in that: an annular groove (210) designed to accommodate one end of the casing made of electrically insulating material, and a link clamping this casing into the groove (210), and a structure (211, 232) which is not symmetric in revolution about the axis (202) of the contact piece (200). <IMAGE>
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