Hello, new here. I am studying so that I can pass my Master exam. I want to be prepared so I am asking if anyone could give and example of what I posted in the title. Mike’s textbooks show examples for cooking equipment but not dryers. I believe it is the same procedure as cooking equipment except you use table 220.54. Just want to be sure. Thanks.
Single phase dryers on 3 phase service
- Thread starter Dconger74
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- New Jersey
- Occupation
- Journeyman Electrician
Are you asking about an Article 220 service calculation with 1Ø dryers on a 3Ø system?
Welcome to the forum.
Welcome to the forum.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
DC, welcome to the forum.
Rather than code items, let me explain this: a clothes dryer has everything connected from L1 to the neutral, except for the heating element.
A 240v heating element runs at almost exactly 3/4 the wattage on 208v as on 240v. The rest of the dryer's internals run on 120v either way.
Rather than code items, let me explain this: a clothes dryer has everything connected from L1 to the neutral, except for the heating element.
A 240v heating element runs at almost exactly 3/4 the wattage on 208v as on 240v. The rest of the dryer's internals run on 120v either way.
kwired
Electron manager
- Location
- NE Nebraska
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- EC
That is the simple part, calculating load with allowed demand factors on a three phase supply is the part that is complicated, and even on this site you get varying opinions on how it should be done.
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- Chapel Hill, NC
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- Retired Electrical Contractor
Yes, it is the same for dyers as it is for ranges
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