The parallel conductors in each phase or neutral shall ___.

The requirement that parallel conductors in each phase or neutral must have the same insulation type and conductor material, be the same size in circular mil area (cma), and be the same length while being terminated in the same manner ensures uniformity and consistency in electrical performance across the conductors.

When parallel conductors are used in a system, it is crucial for them to possess identical characteristics to facilitate the sharing of current load equally. This helps in preventing issues such as overheating or potential failures that may arise from imbalances in current distribution. For instance, having the same insulation type ensures that each conductor can withstand environmental conditions without compromising their performance or safety, while uniform size in cma ensures that the conductors have the same electrical resistance and current-carrying capacity. Additionally, matching lengths helps to minimize any differences in resistance and reactance, maintaining a balanced system. Proper termination also assures that there are no weak points at the connections that could lead to reliability issues.

Collectively, these requirements are vital for ensuring the safe and effective operation of electrical systems, which is why all of the specified conditions must be satisfied.