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If it is on, do not turn on the SHORE CIRCUIT BREAKER, as there is a problem
with the power supply. Almost all marinas in the San Juan Islands will not
experience this problem; it is typically the outlying areas that could be a problem.
If the light is not “
ON
” then it is OK to turn on the SHORE POWER BREAKER
and you should see approximately 120V on the AC meter. Then, turn on
appropriate breakers for the battery charger, refrigeration, water heater, etc. Watch
the ammeter to see corresponding load changes.
If the load is greater than the available power (30 amp, 20 amp, etc.), a breaker will
likely trip at the dock power connection. If this occurs, reset the dock circuit
breaker and turn on the boat systems one at a time while watching the load so as
not to exceed the rated maximum 30 amps (3,000 watts), 20 amps (2,000 watts) or
even 15 amps (1,500 watts) depending on shore power availability.
Amps = Watts / Volts
Here are some example AC loads:
Microwave
1000 watts
8.3 amps
Hair dryer
1500 watts
12.5 amps
Coffee maker
1000 watts
8.3 amps
Water Heater
1500 watts
12.5 amps
This means you could potentially trip the shore power circuit breaker using any
three of these appliances simultaneously.
Summary of Contents for Latis
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