IEC 60038, titled "IEC Standard Voltages," is the definitive international reference for standardized voltage levels used in electrical supply systems. It establishes preferential values for nominal voltages to ensure global interoperability, safety, and equipment compatibility across AC and DC systems. Scope and Applications
50 Hz Systems: The common standard is 230/400 V (single-phase/three-phase). iec 60038 standard voltages pdf 103
The IEC 60038 standard defines the standard nominal electricity supply voltages for low-voltage and high-voltage AC and DC systems . It serves as a "horizontal standard," meaning it provides fundamental reference values used across multiple electrical engineering fields to ensure global interoperability . Key Voltage Classifications (IEC 60038) IEC 60038 , titled " IEC Standard Voltages
Standardizes voltages for railway and transit systems (e.g., 1,500 V DC or 25,000 V AC). Low-Voltage Equipment: "iec 60038" : The core standard identifier
Equipment Manufacturing: Defining reference values for insulation design, clearance distances, and testing.
Option C: The Table of Highest Voltages for Equipment (Um).
A very likely candidate is the continuation of a major table listing Um values for systems above 1 kV. For example:
These high-voltage standard voltages are used for transmission and distribution of electrical power over long distances.