Electrical insulating matting certified according to IEC 61111:2009 in class 3, with an operating voltage of 26,500 V, a test voltage of 30,000 V and a withstanding voltage of 40,000 V, with permanently vulcanized marking tape. Vulcanized elastomer wide grooved is available in black color, 5 mm thick (+1/- 0.1mm) with basic weight 6.5 kg/m2.