▎ 摘　　要

NOVELTY - The utility model claims a large-current switch cabinet GN30 isolating switch, comprising a static contact, the contact surface of the static contact is equipped with a copper plating layers of graphene. the heavy current switch cabinet GN30 isolating switch, the static contact finger is copper plated graphene layer structure to replace the existing copper silver plating structure, the electrical conductivity and thermal conductivity of the graphene conductivity and thermal conductivity than silver, the static stream guidance capability and contact the radiating performance of contact unit area in so as to control the partial temperature rise of contact and improve GN30 isolating switch guiding and radiating ability.