To determine the measure of the additional heating effect caused by harmonics, we need to evaluate the options given:
A. Nonlinear load: This describes a type of load in an electrical system but does not measure the heating effect caused by harmonics.
B. Degrees F/C: This measures temperature, but it is not a specific measure related to the additional heating effect caused by harmonics.
C. K rating: This is specifically used to measure the additional heating effect caused by harmonics in an electrical system.
D. T rating: This term is not typically used in the context of measuring the heating effect caused by harmonics.
Given the detailed examination of the options:
The measure of the additional heating effect caused by harmonics is referred to as K rating. Therefore, the correct answer is:
C. K rating
