| 摘要 |
<p>PURPOSE:To eliminate the fear of generating a grounding accident through a stay even in the case of birds such as crows stopping on the stay for a contact wire supporting beam and touching a feeder by providing insulating bodies at both end parts of the stay. CONSTITUTION:A stay 10 is extended aslant between the tip of a supporting beam 2 and a derrick l so as to connect the tip of the supporting beam 2 supportingly to the derrick 1 through the stay 10. An upper insulator 11 made of porcelain as an insulating body is fitted to the upper end of the stay 10 through a U-clevis, and the upper end of this upper insulator 11 is connected to the derrick 1 through a bracket. A lower ribbed insulator 14 made of porcelain as an insulating body is fitted to the lower end of the stay 10, and the lower end of this lower insulator 14 is connected to the supporting beam 2 through a U-crevis and a bracket.</p> |
