Quote:
Originally Posted by KenB
Nope. G.5 says "The building should have at least two utility feeders from different utility substations for redundancy."
|
Ken
Have often wondered what is meant by redundant utility feeds. If you have two substation transformers on site (they could even be in the same room) and they both go back to the same transformer upstream, is this any improvement? How far upstream do you have to go to get the redundancy level required to meet Tier 4?