The voltage surge simulator vsurge NX8.1 generates high voltage transients as required by IEC 62052-11 with a source impedance of 500 Ohm for transient overvoltage tests on Metering equipment. The output voltage ranges up to 8 kV. In contrast to the vsurge NX8.1, the test level 2.5 kV is replaced by 2 kV in vsurge NX8.2. The no-load waveshape corresponds to IEC 61180-1. For this kind of testing the standards require a fixed energy of 0.5 J at all test levels.