shamsdebout
Senior Member
- Location
- Macon,GA
Have you come across this? Is this typical for newer homes? I haven't come across expect for a power company handbook.
I've only seen it in condos and apartment buildings, but only as 1ph.Have you come across this? Is this typical for newer homes? I haven't come across expect for a power company handbook.
I've only seen it in condos and apartment buildings, but only as 1ph.
Everything should work, but understand that heating will be at about 75%.
'Splain, please. One-pole limit?I understand the lack of effiency of 208 verses 240, I don't understand the one pole limit so much...
I don't. What do you mean by "one pole limit?"lol, ok, ok, I get it ...
I don't. What do you mean by "one pole limit?"
I understand the lack of effiency of 208 verses 240
It is used that way. A dwelling unit would be supplied with 3 wires...two ungrounded wires and a grounded one from the 3 phase system.Frankly, I didn't seem to understand where 208 device couldn't be used as a two pole source were required!.
This is the same layout that I've worked with when I'm around this type of service.
The Same Here
There are some areas where the utilities will supply single family dwelling units in s subdivision with single phase 120/208 service. As others have said the only issue is the wattage reduction of about 25% for heating equipment.
In Boston and Cambridge there are large residential areas served by these underground 208Y/120 networks with each dwelling only receiving two of the three phases. It seems to work well except for the fact getting a shut down is all but imposable as it will effect so many customers.
I've seen that too in high rise apartments and condo's. Each apartment will be fed from a riser originating at a meter bank and there will be a common neutral that will be tapped to feed several apartments.
In Boston and Cambridge there are large residential areas served by these underground 208Y/120 networks with each dwelling only receiving two of the three phases. It seems to work well except for the fact getting a shut down is all but imposable as it will effect so many customers.
The neutral current would be more than the unbalance between A and B in this case at the residential panel.
"but not more than ?