I have an old building that is getting its power from an open delta utility company transformer. This is giving us 240v 3-phase power. I have been doing some research on this subject and have not come up with a lot of information, what I am wondering is the following. Do I need to avoid...
I am in need of a clarification so...
If I use the demand load for things like kitchen equipment and receptacles do I get to use those discounts in sizing my feeders? or do I have to use 100% as in connected load when sizing the feeder? what about breaker sizing?
Thanks for any light that...
I was wondering if anybody knows of any laws governing the placement of night lights in a building (NFPA, ASHRAE 90.1, NEC). We tend to put all of our night lighting on a lock out breaker with our emergency lighting, however, our customer is wanting us to put half of the store on the night...
I was wondering if somebody could answer this for me. If I have a demand load (lets say for lighting) of 125% I calculate my demand and then I go ahead and multiply that total by the demand of 125%. Now if I have a distribution panel that is feeding the panel with the for mentioned lighting...
I am wondering if anyone knows what the code says about the distance from a Distribution panel to a MLO only panel, at what point am I required to use some sort of protection device?
Thanks,
Jason Self
Could anybody tell me in 3-phase power when I would use a "3ph/4w/Ground" setup rather than a "3ph/3w/Ground" setup. I am a bit confused as to which I use in a given situation. Thank you,
Jason Self
