ANTI-CASCADING SUSPENSION CLAMPS FOR OVERHEAD POWER TRANSMISSION LINES

摘要

A suspension clamp (10) comprises a stirrup part (12) having an upper endadapted for pivotal connection to a string of insulators (S) of a transmissiontower. A clamping part (14) is accommodated within the stirrup part (12) forclamping onto the overhead conductor (L) supported by the towers. A releasableconnection (34) is provided between the stirrup part (12) and the clampingpart (14) for releasing the clamping part (14) from the stirrup part (12)whenever a predetermined excessive longitudinal force is exerted by theoverhead conductor (L), thereby preventing damage to the tower and theinsulators. The stirrup part (12) holds the line together with the clampingpart (14) suspended once the clamping part (14) has been released from thestirrup part (12).