| 摘要 |
A so-called insulation screen has, for its fastening to a power transmission pole or the like, two guide channels 6 running in the transverse direction of the screen for spring-loaded fastening elements 8, 9 provided with gripping elements 9a, 9b. The mouth portions of the guide channels are downwardly directed at a slant or downwardly bent and the gripping elements are normally engaged with these mouth parts. Thanks to the shape of the guide channels, the fastening element cannot accidentally move up against the current-carrying lines above. It is convenient to fashion the guide channels from plastic tubes 6 secured to the bottom of the screen. In order to hold the screen level with the ground surface, the screen also has a slanting sleeve 4 for detachable connection with a rod or a tube. <IMAGE> |
