Live part verification coating and live part verification method

The present invention belongs to the high-voltage test field and relates to a live part verification coating and a live part verification method. The coating comprises graphene and heavy metal nanoparticles; the volume ratio of the heavy metal nanoparticles to the coating is not smaller than 50%; and the volume ratio of the total volume of the graphene and the heavy metal nanoparticles to the volume of the coating is not smaller than 65%. The live part verification coating of the present invention can be applied to the surface of a high-voltage cable annularly so as to play a role of color development. The mixing ratio of the coating of the invention is proper; and the resistivity of the coating is low, so that the coating just emits little heat. 本发明属于高压电检测领域，具体地来讲为种验电涂层及验电方法。该涂层包括石墨烯以及重金属纳米颗粒，其中重金属纳米颗粒与涂层的体积比不少于50％，石墨烯以及重金属纳米颗粒的总体积与涂层的体积比不少于65％。本发明验电涂层可以环形施加在高压线缆的表面作为显色用。本发明混合比合适，涂层的电阻率低，少生热。