Insulating radio aerial tensioned cable support - uses metal rod to take load with coaxial porcelain cylinder under compression between metal components

摘要

The insulator has first and (10) second metal elements. It has metallic cap (12) fixed to the first element so that the element extends axially towards the exterior from the bottom of the cap. An annular metallic crown (17) is fixed to the cap. (12). The crown (17) extends towards the interior of the insulator from the mouth of the cap (12). A metallic rod (19) is fixed to the second element (20) This rod (14) penetrates axially into the metallic cap (12). The rod (14) has on its end inside the cap a metallic element (21) extending radially towards the exterior. This element forms a head of diameter greater than the interior diameter of the crown (17). A cylindrical electrically insulating element (22) is interpassed between the crown and the head, to which it is fixed. The cavity between the crown and the cap around the head and the insulating element is filled with an electrically insulating oil.