What are the different types of power lines?
Answers
Explanation:
Classification of power lines:
* There are multiple type of powerlines as their transmission voltage can range between 60 V for phone lines and more than 1000000 V for high power transmissions. Although different types of current are used.
Three-phase AC powerlines:
* Nearly all power lines in the world are three-phase AC. A table with the most common properties for identification of line types can be found.
* Power line towers (or in some places, poles) can carry multiple systems with different voltages. For classification as “line” or “minor_line”, the highest voltage is relevant. If a pylon designed for a high-voltage line carries just circuits of medium-voltage lines, it should be classified as “line” with the voltage value. If this value is not-known, choose “20 kV” or “15 kV”.
Power line towers (or in some places, poles) can carry multiple systems with different voltages. For classification as “line” or “minor_line”, the highest voltage is relevant. If a pylon designed for a high-voltage line carries just circuits of medium-voltage lines, it should be classified as “line” with the voltage value. If this value is not-known, choose “20 kV” or “15 kV”.Sometimes the line towers of lines for more than 1 kV carry an insulated communication cable, which can be either a separate cable or be part of the ground conductor. On some lines built by EVS ( now EnBW) the communication cable hangs like a garland on the ground