It is best if the data center is on a different electrical system than the rest of the building. Thus, if anything negatively affects the main building’s power, it will not carry over and affect the center. Which of the following is untrue when it comes to electrical systems for a data center?
A.
The data center may require redundant power supplies, which means two or more feeders coming in from two or more electrical substations.
B.
Two or more electrical feeders coming into its facility means that redundancy is automatically in place.
C.
Data centers need to have their own backup power supplies, either an uninterrupted power supply (UPS) or generators.
D.
Two electrical feeders could come from the same substation.
Explanation:
It is best if the data center is on a different electrical system
than the rest of the building, if possible. Thus, if anything negatively affects the
main building’s power, it will not carry over and affect the center. The data center
may require redundant power supplies, which means two or more feeders coming in from
two or more electrical substations. The idea is that if one of the power company’s
substations were to go down, the company would still be able to receive electricity
from the other feeder. But just because a company has two or more electrical feeders
coming into its facility does not mean true redundancy is automatically in place.
Many companies have paid for two feeders to come into their building, only to find
out both feeders were coming from the same substation.
This is again a poorly written questions. Both Answer “B” & “D” are said to be right .
Si viene de la misma subestación ¿no habría problema con las dos conexiones? para mi es la D
Answer must be D