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T&T: 30 amp service vs. 50 amp service

From: Gil Johnson (no email)
Date: Sun Jul 09 2006 - 11:29:58 EDT

  • Next message: Keith: "T&T: What a mess!"

      Bob, you asked:
      One 50 amp 4 wire cord plugged into a 50A 240 volt service can move 50 amps
      (at 120 volts) on each leg, would it be a 100 amp service ?
       
      Answer:
      Yes, (effectively) if expressed as 110V service
      No, if expressed as 220V service.
       
      As I previously stated, it really depends on what your boat's systems require. If your boat as two isolated 110V XA systems, then it really doesn't matter if you get 1 or even 2 110V services or a single 220V service. If you use a 220V service, your boat's wiring will look at the two 110V feeds that make up the 220V feed as to independent 110V feeds.
       
      If your boat's systems are 220V, then you MUST have two out of phase 110V feeds or a single 220V feed.
       
      Gil
     Next-gen email? Have it all with the all-new Yahoo! Mail Beta.
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