No polarity light!

[Star-Lord]

Just realised I have no polarity warning light (so the shore power will not work if the wiring on the pontoon is ‘different’). What’s going to happen to my boat if I hook up to a supply that is reverse polarity? Do I need add a gizmo to tell me to rewire the shore power? TIA.

 

[Boathook]

Shore power normally works if it only the positive and negative wires are swapped. It just the safety side is compromised if you only have single pole circuit breakers hence all the talk about double pole breakers, rcbo's, etc

 

[Boater Sam]

Its AC current so it reverses 50 times a second anyway! Everything will work.
The problem is that what was not live becomes live so safety is compromised. If you have double pole breakers its no problem.

 

[Sticky Fingers]

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[rogerthebodger]

When I designed my shore power system, I included a polarity indicator consisted of 2 neon's one red and one green

The red was connected between the mains neutral, and the mains ground and the green was connected between then line and mains ground

Green should be on and the red must be off

 

[Goldie]

Just realised I have no polarity warning light (so the shore power will not work if the wiring on the pontoon is ‘different’). What’s going to happen to my boat if I hook up to a supply that is reverse polarity? Do I need add a gizmo to tell me to rewire the shore power? TIA.

Easiest is probably to buy something like

https://www.amazon.co.uk/Socket-Tester-Polarity-Electrical-Wiring/dp/B013WWKQV0

and make up an intentionally (and clearly labelled!!!!) reversing lead.