| 摘要 |
PROBLEM TO BE SOLVED: To provide an insulator for electrical railway that prevents damages to an insulator body due to corrosion of a clasp which is attached to the insulator body, and secures insulation, even when a line is struck by lightening. SOLUTION: The insulator for the electric railway is provided with: the insulator body 1, on which a plurality of water dripping shades 1a and small diameter shades 1b with the outside diameter smaller than that of the water-dripping shades 1a are formed in parallel and alternately toward the axial direction, while being projected outside in the direction of the radius; a cap clasp 2 capping the top end of the insulator body 1; a bottom section clasp 3 capping a bottom end of the insulator body 1; and a line-receiving clasp 4 arranged facing the bottom section clasp 3 and holding the line together with the bottom section clasp 3. The insulator body 1 will not be damaged, since the cap clasp 2 and the bottom section clasp 3 merely compress the attaching section of the insulator body, even when the cap clasp 2 and the bottom section clasp 3 are corroded and expanded. Furthermore, insulation is secured, even if the line is struck by lightening, since the cap clasp 2 and the bottom section clasp 3 are separated by a distance. COPYRIGHT: (C)2010,JPO&INPIT
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