Discussions on Fracture Mechanisms of Composite Insulator

Abstract

During actual operation, the fiber reinforced plastic (FRP) rod of composite insulator was usually cracked with major characteristics of brittle and decay-like. The made a systematical expatiation of the failure modes of FRP rod, and the mechanisms of these two common fracture types were analyzed. At last, as far as possible to avoid the occurrence of FRP rod fracture accidents in the transmission lines, from the point of view of operation and running, advice about promoting the manufacture level and installation quality of composite insulators were given.