EDO 4 ENABLES TO CARRY OUT TESTS FOR: -Dielectric strength; -Continuity of the equipotential circuit; -Insulation resistance; -Residual voltage in accordance with the directions of the IEC roduct rules and with the EC directives. EN 1180-1/2, EN 61180-1/2 (CEI 42-9/10) Concerning high voltage testing techniques for low voltage appliances.