What is the DC resistance at 167 degrees F for a 2/0 AWG bare aluminum conductor?

To determine the DC resistance of a 2/0 AWG bare aluminum conductor at 167 degrees F, one must consider the standard resistance values for aluminum conductors and the temperature adjustments necessary for accurate calculations.

The DC resistance for a 2/0 AWG aluminum conductor at a standard temperature (usually 20 degrees C or 68 degrees F) is approximately 0.097 ohm per 1000 feet. However, as temperature increases, the resistance of conductors typically increases as well due to the increased electron scattering.

For aluminum, the resistance increases by about 0.4% for each 1 degree Celsius rise in temperature. At 167 degrees F, the temperature difference from the standard is significant, and the resistance must be adjusted from the base value.

If you calculate the resistance at elevated temperature using the known increase, you arrive at the value of approximately 0.159 ohm per thousand feet for a 2/0 AWG bare aluminum conductor. This is precisely why this option represents the correct answer; it accurately reflects the calculated resistance under the specified conditions.

The other values would not correspond to the expected resistance of a 2/0 AWG aluminum conductor at that temperature based on standard reference data adjusted for