- Oct 12, 2007
- 12,916
- Boat Info
- '89 Sea Ray 390 Express
'00 Sea Ray 185 BR
- Engines
- mercruiser 7.4L inboards
Mercruiser 4.3L/Alpha 1
Hi everyone!
I was doing to electrical investigating on my boat and ran into something totally unexpected (by me, but not my dealer) The boat had been attacked by some stray electricity on my running gear last year, and after checking the galvanic isolators were good, I tried an experiment.
Condition: Shore power Line 1 was powered, Line 2 disconnected from boat, thus unpowered.
I hooked one end of the voltmeter to my electrical outlet hot side of circuit breaker which is powered by line 1. I touched the other lead to the meter to the neutral bus for line 1, 120 Volts, which is what I was expecting.
However, I touched the lead to the neutral bus for line 2, and got a reading of 113 volts, which is not what I was expecting. Shouldn't it have been zero?
My dealer told me that Sea Ray ties the whole neutral system together, and if that is true, why have separate neutral busses? Personally, that explanation just does not hold water with me.
Thanks in advance for any thoughts....
I was doing to electrical investigating on my boat and ran into something totally unexpected (by me, but not my dealer) The boat had been attacked by some stray electricity on my running gear last year, and after checking the galvanic isolators were good, I tried an experiment.
Condition: Shore power Line 1 was powered, Line 2 disconnected from boat, thus unpowered.
I hooked one end of the voltmeter to my electrical outlet hot side of circuit breaker which is powered by line 1. I touched the other lead to the meter to the neutral bus for line 1, 120 Volts, which is what I was expecting.
However, I touched the lead to the neutral bus for line 2, and got a reading of 113 volts, which is not what I was expecting. Shouldn't it have been zero?
My dealer told me that Sea Ray ties the whole neutral system together, and if that is true, why have separate neutral busses? Personally, that explanation just does not hold water with me.
Thanks in advance for any thoughts....
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