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- Path: sparky!uunet!ogicse!decwrl!adobe!vonzelow
- From: vonzelow@adobe.com (Jon von Zelowitz)
- Newsgroups: misc.consumers.house
- Subject: Re: Electrical wiring-- 'Sharing' a 220V circuit
- Message-ID: <1993Jan25.220207.14715@adobe.com>
- Date: 25 Jan 93 22:02:07 GMT
- Article-I.D.: adobe.1993Jan25.220207.14715
- References: <Jan20.163026.48896@yuma.ACNS.ColoState.EDU>
- Sender: usenet@adobe.com (USENET NEWS)
- Organization: Adobe Systems Incorporated, Mountain View
- Lines: 19
-
- In article <Jan20.163026.48896@yuma.ACNS.ColoState.EDU> mglacy@lamar.ColoState.EDU () writes:
- >I'm putting a 5kw 220 electric resistance heater in my garage. It
- >must live on a 30A circuit. This will leave considerable excess
- >ampacity over the rated load + 25% required (to my understanding)
- >by the NEC. I'd like to run some lighting (say 200W max) at 110V
- >on one side of the 220 circuit. (This would enable me to keep the other
- >circuit in the garage as a power-tools-only circuit.)
- >
- >Would this be safe and acceptable?
-
- Since none of the "pros" have answered yet, I will venture the following:
- 1. The heater should be under 80% of the dedicated heater circuit's
- capacity. If you do the calculation, you will find that the difference
- is not "considerable".
- 2. Even if you could get away with a hack like that, you would limit
- your future expandability. Why not do it right and add another
- 110V circuit?
-
- Jon von Zelowitz vonzelow@mv.us.adobe.com ...uunet!adobe!vonzelow
-