The first pole and the terminal pole are two important poles in the power line. The first pole is the starting point of the power line, usually located near a power station or substation, to receive the power and transmit it to the next pole.
A terminal pole is the end point of a power line, usually located on the last pole of the power line to transmit power to the user terminal. Terminal poles can also be used to connect substations or other power systems. In power lines, the first and final poles are usually the tallest towers, because they are needed to support the beginning and end of the power line.
The first base tower located at the first end of the line belongs to the first end pole, and the last base tower belongs to the terminal pole.