Abstract: Abstract:In order to avoid the deformation or collapse of the towers in transmission line caused by unbalanced longitudinal tension above allowable value, it is required that when the grip strength of the suspension clamp on the wire reach certain value, the clamp can loose the wire automatically. According to the requirement of the minimum grip strength and the maximum grip strength of the suspension clamp, a limited grip strength suspension clamp was designed. The technical and environmental factors influencing on the suspension clamp were expounded, and the application of the limited grip strength suspension clamp was analyzed.

Key words: Key words:limited grip strength suspension clamp, longitudinal load, breaking load, safety coefficient