Application of Epoxy-Coated Rebars to Large Electric Structure for Electrical Insulation

Abstract

This paper describes the test results on the electrical insulation properties of the epoxy-coated reinforc-ing bar. By a series of testing, the effects of mechanical stress cycles, electrical cycles, chemical corrosion and high temperature, were also evaluated. Even after the several degradation cycles simulating the severe environments in fusion reactor, the epoxy-coated reinforcing bar and its mechanical joint have excellent insulation properties in comparing to the conventional insulation structure, and they demonstrated the adequate applicability for the RC-structures of large electrical devices such as electrical power plant, fusion reactor, intelligent building and linear-motor transport system.