What is the standard voltage on a transmission line?

The standard voltage for a transmission line typically falls within the range of high voltages used for efficiently transmitting power over long distances. While various voltages may be used in different contexts, 138,000 volts is one of the standard levels for high-voltage transmission lines.

This voltage level is particularly significant in utility systems as it strikes a balance between reducing losses during transmission and being usable for distribution after stepping down to lower voltages. It allows for the effective movement of large quantities of electrical energy from generation sites to substations, where the voltage can then be reduced for delivery to consumers.

Understanding transmission line voltages is crucial for linemen because working safely and efficiently with electrical infrastructure requires knowledge of the standard operating conditions and the specifications of the equipment involved.