The Torsional Damper for Conductors- Service Experience and Further Experimental Work

Careful inspection of ACSR (steel-reinforced aluminum cable) conductors operating for ten years equipped with torsional dampers has shown no apparent damage due to aeolian vibration. Type HH copper conductor without dampers has been operating for a similar period without trouble. Further experimental work indicates that there is little tendency for ACSR conductors to vibrate at tensions less than 8 per cent of their ultimate strength.