Exin CDCS Exam - Topic 3 Question 25 Discussion

Actual exam question for Exin's CDCS exam

Question #: 25
Topic #: 3

[All CDCS Questions]

What is the minimum requirement for power feeds to a Rated-4 data center (ANSI/TIA-942)?

ATwo feeds from two different substations, one power company not acceptable

BTwo feeds from two different substations, one power company acceptable

CTwo feeds from one substation

DOne feed split into two distribution boards

Show Suggested Answer

Suggested Answer: B

A Rated-4 facility requires dual active utility feeds, each from an independent substation, but they may come from the same utility provider if substations are geographically separate and independent.

Option A is too strict; ANSI/TIA-942 does not mandate two different companies.

Options C and D do not provide true independence and would fail Rated-4 requirements.

Thus, the minimum is two substations, possibly same provider.

by Verdell at Mar 04, 2026, 01:19 AM

Limited Time Offer

25%

Off

Get Premium CDCS Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Currently there are no comments in this discussion, be the first to comment!