T&T: 30A/50A y adapters

[Mike Loy]

One analysis might be to quantify the energy-passing capability of 
the two alternatives.  Electric energy [watts] equals voltage times 
amps [ignoring power factor].  A 30 amp 120v circuit is nominally 
capable of passing 3,600 watts.  A 50 amp 240v circuit is 12,000 
watts.  Combining two 30 amp circuits [on different legs] gets one to 
7,200 watts; well below the capability of the single 50 amp 
circuit.  Using the adapter and putting a load of greater than 7,200 
watts on it might result in popping the ckt breaker on one or both of 
the 30 amp feeder legs.  Arild, am I wrong?
Regards,
Mike