| 摘要 |
<p>PURPOSE:To prevent an aluminum pipe from being corroded by salty water entering a gap between metallic wires, and the pipe and the metallic wire from being electrolytically-corroded by salty water and action of induced current, by covering the outside of the metallic wire in a non-tense part with a waterproof cover for shutting down water content. CONSTITUTION:A waterproof cover 3 is provided so as to cover a non-tense part between a tension resisting clamp 2 and a steel tower ground clamp 4 which are liable, to corrode. By winding an armor rod around the outside of the waterproof cover 3, an overhead earth-wire 1 is protected doubly. It is thus possible to prevent salty water from adhering to the overhead earth-wire 1 in the non-tense part due to wind and rain, an aluminum pipe from being corroded by salty water, and the pipe and the metallic wire from being electrolytically-corroded by salty water and action of induced current.</p> |
