Symbols for wiring diagram?

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  #1  
Old 09-18-05, 01:47 PM
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Question Symbols for wiring diagram?

Does anyone have a good and thorough source of home wiring symbols (on-line preferred)? I have some resources but they sometimes contradict each other (like the symbol for a recessed light fixture) or they emphasize industrial stuff. I have the 2005 NEC book and I can't find them in there...

Thanks!
 
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Old 09-18-05, 01:57 PM
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I think you will find that there is no standard.
 
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Old 09-19-05, 07:26 AM
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I know that some really good web sites show electrical symbols. I've been to some before but I don't have their URLs recorded. Google around further. You'll find some.
 
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Old 09-19-05, 10:05 AM
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There are many conventions, but I don't think there are any standard symbols for residential wiring. Here is a sample set of symbols:

http://www.elec-toolbox.com/usefulinfo/elecsym1.htm
 
  #5  
Old 09-19-05, 07:29 PM
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Most prints will have a legend which will tell you what is what.

But here are some basic ones I tend to see over and over:

 
  #6  
Old 09-19-05, 08:48 PM
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Thanks. I was looking for something more extensive than that, but will make the best with what I have. But for argument's sake - I haven't seen the symbol you have for a fluorescent light. What I've seen is a rectangle w/a circle in it. I guess I've learned that despite all the NEC detail, they never standardized symbols. Maybe they were hoping the architects would do it...
 
  #7  
Old 09-20-05, 07:35 AM
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Install a copy of the drawing program Microsoft Visio on your PC. It has built-ins for all the electrical symbols, and it tells you what each one means. It even has different symbols for surface fluorescent fixtures and recessed fluorescent fixtures.
 
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