Exceeding standard limits is never recommended, but even limits may be insufficient for:

Before your next installation, take a moment to run the numbers. A slightly larger wire today can save you thousands in wasted energy and equipment repairs tomorrow.

The total combined voltage drop from the service entrance to the final equipment should not exceed 5% .

[ V_d = \sqrt3 \times I \times (R\cos\theta + X\sin\theta) \times L ] Where: