Regal 53 SC, Owner'S Manual

Page: 101 / 546

49
Systems
(AC) ALTERNATING CURRENT-GENERAL INFORMATION
OVERVIEW
As standard equipment alternating current sometimes
called AC current is available by bringing it on board
through the use of a dockside (shorepower) cord, cord
reel system, or it may be produced on board through the
generator. Just as a home uses 120/240 volts to run vari-
ous household appliances and equipment the same holds
true on your yacht.
With AC current electrons “cycle” in one direction a
short distance and reverse themselves traveling in the op-
posite direction. This is how AC became known as alter-
nating current. The rate that the current reverses itself is
referred to as its frequency. In the United States the alter-
nating current frequency is 60 cycles per second. Over-
seas a 50 cycle frequency per second is standard. Compo-
nent speci
fi cations must match the country’s frequency.
BASIC ELECTRICAL TERMS
Voltage is a measurement of the electrical potential that an
electrical power source contains for doing some type of
work for us. Think of it as electrical pressure. An example
might be a battery.
Amperage is a particular amount of electricity fl owing
through some part of a circuit. Think of it as the rate of
electrical
fl ow.
Resistance is measured in ohms and inhibits the electrical
fl ow through a circuit. An example would be in a light
bulb. The resistance in the light bulb element allows it to
glow and brighten a dark room along with giving off heat
as a by-product.
It is important that you understand and respect the alter-
nating current system used on board. Be sure to read and
follow any danger, warning, or caution labels in reference
to the yacht’s electrical system or individual equipment
components.
Never attempt any electrical repairs
with the power in the “on” position. Most of all, use
common sense!
This manual presents the latest standard and select op-
tional alternating current system components.
You will
be able to quickly tell which system is installed on your
vessel by visually spotting the components on the deck or
in the bilge (sump) and by reviewing the system drawings.
As standard equipment the 50 foot dockside cord is the
basic component used to deliver up to 50 amps of elec-
tricity from the marina dock power box to the yacht itself.
Before plugging in the dockside power cord check to see that all yacht
AC breakers are off. This includes the incoming as well as both the
main and equipment breakers at the AC ship’s control panel. See
the AC panel illustration later in this chapter.
When connecting
the shore power
cord be sure to
twist the cord into
the yacht inlet plug
first. The inlet
plug is located on
the aft deck. The
cord installs one
way only. Align
the pins or use the imprinted arrows and detentes located
on the stainless steel part of the
inlet), insert the cord end straight
into the inlet plug and twist in a
clockwise direction to lock in place.
Note that on vessels with standard
shorepower equipment the shore
power cord makes use of the neutral
wire. Therefore, all 4 cord pins are
used. Screw the threaded sealing ring
into the shore power inlet until tight.
This protects the inlet and cord pins
from moisture.
TYPICAL DOCKSIDE (SHORE POWER) CORD
SYSTEM
MARINA PLUG
IN END
YACHT INLET
PLUG IN END
50 FT. 50 AMP
CORD
YACHT INLET