Is 138 kV High Voltage?

High voltage (HV; subtransmission less than 100 kV; subtransmission or transmission at voltages such as 115 kV and 138 kV), used for sub-transmission and transmission of bulk quantities of electric power and connection to very large consumers.

What is the safe distance from 400 kV line?

For the 400 kV, 500 MW line under consideration, the flux density of 1.265 mg is reached when x = 77m; this implies that the safe clearance distance is 77m from the line centre on the either side. Thus, the overall safe clearance distance is 154m.

Is 230 kV High Voltage?

High-voltage (230-kV, 345-kV, 400-kV (DC), 500-kV (DC): Currently in Minnesota, the high-voltage system is generally comprised of 230-kiloVolt and 345-kV systems. There are also two direct current (DC) lines, one of 400-kV and one at 500-kV.

What is kV in power lines?

Transmission lines are used to carry electricity (in kilovolts, or kV) from power stations to major substations.

How big is a 765 kV power line?

The ROW width commonly used for 765 kV, 500 kV and 345 kV lines is summarized below: Voltage Class ROW Width – Feet 765 kV Single Circuit 200 500 kV Single Circuit 175 – 200 345 kV Double Circuit 150 345 kV Single Circuit 150 Q9.

How much does a 345 kV transmission line cost?

Typical installed costs for 765 kV, 500 kV and 345 kV transmission lines are: Voltage Class Cost Range/Mile* 765 kV Single Circuit $2.6 – 4.0 Million 500 kV Single Circuit $2.3 – 3.5 Million 345 kV Double Circuit $1.5 – 2.5 Million 345 kV Single Circuit $1.1 – 2.0 Million

What kind of voltage is an overhead power line?

Overhead power transmission lines are classified in the electrical power industry by the range of voltages: Low voltage (LV) – less than 1000 volts, used for connection between a residential or small commercial customer and the utility.

How to identify powerline voltage level and safe clearance?

To work safely around powerlines, you have to be conversant with the voltage levels of the different powerlines and the safe clearance level stipulated for each. Never be careless around overhead power-lines since the risk involve are so severe, ranging from severe shock, burns, electrocution, fire, etc. Loading…