Triple insulated wire (refer to figure below) has three separate layers of insulation, any two of which can withstand safety hipot test voltages. Triple insulated wire provides sufficient insulation to meet worldwide insulation requirements. It can be used to construct a transformer without the creepage margins required in a design using conventional magnet (enamel) wire. For a listing of Triple insulated wire vendors in the United States, Japan and Europe refer to Application Note AN-18.