If a 215-ampere load is supplied by a single-phase, 460-volt branch circuit, what is the voltage drop using 4/0 AWG THWN copper uncoated conductors?

To determine the voltage drop in a single-phase circuit using the given parameters, you can apply the voltage drop formula:

[

Voltage\ Drop\ (V_d) = \frac{2 \times I \times L \times R}{1000}

]

Where:

• (I) is the current in amperes (215 A),

• (L) is the one-way length of the conductor in feet,

• (R) is the resistance of the conductor per 1,000 feet.

For 4/0 AWG copper conductors, the resistance is typically around 0.2485 ohms per 1,000 feet.

Calculating Voltage Drop

Assuming a one-way length of the conductor (the return path is not included in the length), we will substitute values into the formula. However, the specific length of the conductor is missing from the question, necessitating an assumption based on common practices or typical circuits. For example, if we are dealing with 100 feet of conductor:

[

V_d = \frac{2 \times 215 \times 100 \times 0.2485}{1000}

]

[

V_d = \frac{2