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Posted By: 32VAC TT-30 receptacles - 04/11/05 08:34 AM
What is the idea behind the TT-30 style of receptacles for power supply to motorhomes?. Why couldn't the 5-30R configuration be used to do the same job?
Posted By: renosteinke Re: TT-30 receptacles - 04/11/05 02:16 PM
NEMA patterns aren't that old...dating maybe from the late '60's. Nor does every industry care about NEMA protocols. The RV industry being a case in point- RV manufacturers typically had little contact with the electrical community until recently, and developed their own standard.

Perhaps the real question should be: Was NEMA showing its' own ignorance when they ignored an existing pattern when they developed theirs'? This is not the only such example.
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