Portable AC (alternating current) withstand voltage tester

A portable AC withstand voltage tester installs an installation crank handle with positive and negative motions above a handle of an insulation pull rod, a wire hole is opened on the head of the insulation pull rod, the installation crank handle is connected with one end of a wire by an insulated wire, the wire passes through the wire hole, and the other end of the wire is connected with a wire clamp. The portable AC withstand voltage tester can make the wire be capable of contracting freely for connecting a device to be tested with the tester; the portable AC withstand voltage tester is time-saving and labour-saving, durable in use, simple in structure, convenient to use, simple in technique and low in cost and the like; the portable AC withstand voltage tester can be widely used as an AC withstand voltage tester.