mike01 wrote:
In IEEE 1584 / 70E it indicates that panelboards fed from xfmr's below 125Kva with a 208V secondary that there is not enough energy to sustain an arc? was there ever any testing done to substantiate this? When you do your short cirucit / arc flash stuies do you include these types of installations or is it typical to provide a arc-flash hazard level as indicated in 70E-1584?
Yes there was testing, in fact our Forum host was involved. File is too big to attach but I am sure you can find it if you search this forum.