What is the typical length of transmission lines?

Transmission lines vary widely in length depending on the context and application. The typical length of transmission lines is often considered to be around 10 miles or less. This is based on common practice in the field, where shorter transmission lines are used for distribution purposes, while longer lines exceeding this range may serve to connect larger grids across greater distances.

Selecting a length limit of 10 miles aligns with common engineering standards, which emphasizes the practicality of installation and maintenance within a reasonable distance for both overhead and underground systems. Lines longer than this may still exist, but they are less common for day-to-day operations and may involve additional considerations such as increased voltage levels and design complexities.

In contrast, other options suggest lengths that are either shorter or longer, which do not accurately capture the general practice and recognized standards in the industry concerning the typical operational length of transmission lines.