Marina Power
- Thread starter Tommy363
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SG-1
Senior Member
- Location
- Ware Shoals, South Carolina
No, a check with the voltmeter between the neutral and the high leg will tell all. Without knowing the system voltage I can venture a guess that the voltage will be at least 208. Always use proper PPE and meter when taking the measurement. Be sure the instrument is not set up to measure current.
SG-1
Senior Member
- Location
- Ware Shoals, South Carolina
Using the high leg for a line to line connection is fine. There is no difference in voltage between any of the lines. The danger comes with a Line to Neutral connection.
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I have had limited marina experience, but the ones I have had experience with have no straight 240v loads. You need to make sure the "240v vessels" you refer to are indeed 240 v and are not using a neutral with both legs of the 240 to obtain 120v.
As SG-1 states the high-leg is good for Line-Line, but, again, in my experience, that is rare if at all at marinas.
As SG-1 states the high-leg is good for Line-Line, but, again, in my experience, that is rare if at all at marinas.
hardworkingstiff
Senior Member
- Location
- Wilmington, NC
The 50-amp receptacle at marinas is a 125V-250V device. Many boats take the service and feed 2 120-volt panels with it. If you fed it with a high leg there would be problems. Some boats have isolation transformers and they don't use the neutral (they center tap their isolation transformer and develop a new neutral for the boat). In this case it would work, but I still believe it would be a code violation since the receptacle is rated 125V as well as 250V and both ungrounded phases should read 120-volts to the grounded conductor.
See 555.19(A)(3)
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