 | This article relies largely or entirely on a single source. (March 2017) |
| IEC voltage range | AC RMS voltage (V) |
DC voltage (V) | Defining risk |
|---|---|---|---|
| High voltage | > 1,000 | > 1,500 | Electrical arcing |
| Low voltage | 50 to 1,000 | 120 to 1,500 | Electrical shock |
| Extra-low voltage | < 50 | < 120 | Electrical fire |
International Standard IEC 60038, IEC standard voltages, defines a set of standard voltages for use in low voltage and high voltage AC and DC electricity supply systems.