What is the voltage range defined for primary distribution?

The voltage range defined for primary distribution is typically recognized as being between 4kV and 34.5kV. This range is significant because it is used to convey electrical energy from substations to distribution transformers, which then reduce the voltage to a lower level suitable for consumers.

Primary distribution lines are designed to handle medium voltage, providing a means of efficiently transmitting power over longer distances with reduced line losses compared to lower voltage systems. This range allows for the safe and effective distribution of electricity to various endpoints, such as residential, commercial, or industrial services.

The other choices fall outside of this established range for primary distribution. Options that start at lower voltages or conclude at higher voltages do not align with the typical definitions used in the electrical industry. Choosing the accurate range is crucial for professionals in the field to ensure they are working within safe and effective voltage levels during installation and maintenance of the electrical distribution system.