200 % neutral PDU
200 % neutral PDU
(OP)
We have a 200% Neutral Power Distribution Units in a "Data Center". Do we need a 200% Neutral to the 120Volt-20amps wiring to computers receptacles.
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RE: 200 % neutral PDU
If you're using shared (triplexed or networked) common neutrals, you should consider 200% neutrals depending on the circuit loading, expected harmonics, wire size, etc.
RE: 200 % neutral PDU
As alluded to by peebee, keep in mind that a set of three 2-wire circuits {from a wye source} in one raceway will constitute six current-carrying conductors, requiring NEC310 derating.
That would typically mandate 10AWG conductors for a set of 20-amp branch circuits.
RE: 200 % neutral PDU
RE: 200 % neutral PDU
The cable from the panel board to each of these recepticle should have a normal size (ie both wires of the same xection area)neutral and not 200% neutral.
RE: 200 % neutral PDU