Conductor types


  #1  
Old 03-16-04, 07:53 AM
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Question Conductor types

When multi-strand conductor is marked "THHN or THWN or MTW", then lists MTW-2, Moisture Oil and Gasoline Resistent, what does that mean. I assume that the manufacturer lists the first part with the "or" just for ease of marking all types of conduit cable the same, then specifices at the end of that sentence what type of conductor it actually is.

Any ideas?
 
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Old 03-16-04, 08:34 AM
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Conductors can have multiple ratings. If it has all those markings on it then it meets all those ratings.
 
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Old 03-16-04, 05:50 PM
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Exactly. The same conductor can have several ratings.
THHN & THWN for instance are the same thing except that THWN is approved for use in wet locations.
This may help:http://www.americord.com/glossary.html
 
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Old 03-17-04, 05:07 AM
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Thanks!

Thank you gentlemen.
 
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Old 03-17-04, 08:33 AM
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but it probably should be marked THHN *and* THWN *and* MTW etc...
 
 

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