IEC 60664-1Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests MIG18031.2/50 lightning impulse generator up to 18 kV with 40 Ohm impedance MIG1803 INS-1250500V - 30 kV impulse voltage generator INS-1250 MIG1203 STEPMIG1203 with STEP function MIG1203 STEP MIG14403144 kV Lightning voltage impulse generator MIG14403 MIG1203Insulation test system 1.2/50 up to 12kV MIG1203 MIG240324 kV Lightning voltage impulse generator MIG2403 InsulationImpulse insulation testing Voltage impulse insulation testing 1.2/50 us for low-voltage systemsIEC / EN productIEC 60664-1