You Are Designing a Large Equipment Room (ER) That Will

You are designing a large equipment room (ER) that will house many servers, switches, backup storage drives, and other communications equipment including peripheral devices. To prevent problems from harmonic currents that can be created by switching power supplies, you should arrange for:

A) Isolated grounding
B) Oversized neutral and grounding conductors
C) Surge protection on power supply
D) A 3-phase feeder supply separate from the building supply
E) Power filtering at the service panel

Correct Answer:

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