Are control circuits considered current-carrying conductors per Table 310.15(C)(1)?

Control circuits are not considered current-carrying conductors under Table 310.15(C)(1) because this table specifically addresses conductors that are part of power circuits. The classification of conductors is based on their primary function in delivering power and the specific applications they serve. Control circuits, which typically are used for signaling or regulating devices and do not primarily carry power loads, fall outside this classification.

The intent of Table 310.15(C)(1) is to classify conductors that are expected to carry current under normal operating conditions, primarily for energy distribution purposes. Since control circuits often operate at lower voltages and may not be continuously energized like power circuits, they are not included in this table's calculations for ampacity.

This delineation helps ensure that calculations for conductor sizing are accurate and relevant to the intended application and load characteristics. Therefore, the correct understanding is that control circuits do not meet the criteria set forth in Table 310.15(C)(1) for being categorized as current-carrying conductors.