You can download the IEC 60038 standard from the IEC website or other authorized distributors. The standard is available in PDF format, and you can purchase it or access it with a subscription.
| | Tolerance | Application | | --- | --- | --- | | 110 | ±10% | Transmission | | 220 | ±10% | Transmission | | 330 | ±10% | Transmission | | 400 | ±10% | Transmission, distribution | | 500 | ±10% | Transmission | | 750 | ±10% | Transmission | | 1000 | ±10% | Transmission | | 10 | ±10% | Distribution | | 20 | ±10% | Distribution | | 30 | ±10% | Distribution | | 40 | ±10% | Distribution | | 60 | ±10% | Distribution | | 230/400/690 | ±10% | Utilization | iec 60038 standard voltages pdf 103
Here's a snapshot of Table 103 from the IEC 60038 standard: You can download the IEC 60038 standard from