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- Newsgroups: sci.electronics
- Path: sparky!uunet!psinntp!cmcl2!panix!dannyb
- From: dannyb@panix.com (Daniel Burstein)
- Subject: making 110V into 220v
- Message-ID: <C19oyE.GnM@panix.com>
- Organization: PANIX Public Access Unix, NYC
- Date: Fri, 22 Jan 1993 18:06:13 GMT
- Lines: 51
-
- someone or another (I don't have original posting) wrote that he was
- moving from the UK (220V) to canada (11oV) and asked about running his
- equipment.
-
- It's -somewhat-doable if you are VERY careful, and check things out
- extremely minutely.
-
- In the United States and Canada, most residential electrical supplies are
- designed with two separate 110V feeds. the vast majority of appliances in
- the house are plugged into standard outlets, which use a single leg of the
- 110 line, and go to ground for the other. hence actual voltage will be 110V.
-
- For various electrical purposes, the house should be wired so that the
- loac on each leg will be approximately equal, but that's not too critical
- an issue here.
-
- Heavy duty appliances, such as electrical dryers, stoves, ovens, or
- (large) air conditioners will run on 220V. They get this by feeding both
- legs of the electrical supply (which are 110V in opposite phase) to the
- outlet. so as leg #1 "pushes" 110v, leg #2 "pulls" and you get an
- effective 220V supply.
-
- Reason for this use is that net wattage ("power") is based on
- voltage*amperage. so if you double the voltage, you can get twice the
- power through (roughly) the same wiring.
-
- ANyway, what this means is that yes, in most cases, you can get a 220V
- supply in your residence in the US/Canada. But you have to be VERY
- careful that you tap the right wires, etc.
-
- ALso, the outlets used for 220V are DIFFERENT than the ones for 110V (for
- obious safety reasons)...
-
- If having 220V is important to you, then the simplest (from building code
- and electrical code purposes) way is to simply tell them to install a
- 22V circuit for an airconditioner/heater, etc. You can then use standard
- extension cords and outlet taps, although you will have to replace the
- 110V sockets with the 220 ones.
-
- (many years ago, long enough for the statue of limitations to protect me,
- I had a shortage of outlets in my dorm room. However, there was this nice
- 220 volt circuit just sitting there, designed for a heavy duty air
- conditioner. So I replaced the 220v physical outlet with a 110 volt one,
- and plugged in various appliances I had that were dual voltage, like my
- electric shaver, radio charger, and radio power supply. NOT receommended
- for children and other healthy living things <g>)
-
- danny (zap/slash/singe) burstein
-
- dannyb@panix.com
-
-