Will6
New User
- Location
- Raleigh, NC, United States
- Occupation
- Electrical inspector
I can't seem to remember how to calculate 1 phase ranges . 8-12 kw ranges all fed from the same 208 volt 3 phase feeder. Can someone help this feeble memory.
3phase feeder feeding 1 phase ranges
- Thread starter Will6
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- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Go to annex D in the code.. One of those has an example for you to follow
- Location
- Illinois
- Occupation
- retired electrician
You calculate on the bases of twice the number that are connected between any two phases. For 3 ranges, there would be 1 connected between any two phases and you would use a load equal to twice that of a single range. If you add the 4th range, than two phases would have two ranges connected and you would use a load equal to 4 times that of a single range.
220.55
But the examples that Dennis pointed two will probably be much easier to understand than the code language.
220.55
But the examples that Dennis pointed two will probably be much easier to understand than the code language.
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