ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades Three phase lighting....... neutral too small ?

Scott,
For sake of comparison, the 2.5 sq. mm conductors in that armored cable are about 20% larger than AWG #14.

Unless there are severe derating factors to consider due to temperature etc., there's no danger of overloading with only about 4A per phase and a very small amount of imbalance current on the neutral.