Duratuf manufactures electrical insulating mats to IEC 61111:2009, the international standard for voltage rated insulating rubber matting used to protect personnel from electric shock while working near live electrical equipment. The range covers five voltage classes from Class 0 through Class 4, rated for use voltages from 1 kV up to 36 kV, with each class proof tested and dielectric tested well above its stated working voltage, and construction free from any fabric insertion, using natural rubber and synthetic polymer compounds. The mats carry a minimum mechanical puncture resistance of 70