Monaco SIGNATURE 2001 series, Руководство пользователя

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Breaker current ratings are current set points in which the breaker is
designed to operate. The internal configuration of the circuit breaker is designed
to trip when excess current is drawn through the breaker. The breaker will heat
up from the excess current causing the breaker to trip. The trip action of the
circuit breaker can occur within milliseconds due to the speed at which electric-
ity can travel. Breakers are designed to operate at a continuous load of 80% of
the breaker’s rated capacity. For example: A breaker with a 20 amp rating will
operate a continuous 16 amp load. This design leaves a small amount of work-
ing capacity within the breaker. When an inductive load is applied, such as
when an electric motor turns on, the motor starts to spin and current consump-
tion may momentarily exceed the rated capacity of the breaker. As the electric
motor comes up to operating speed, the electric motor’s current consumption
will fall. The AC current load then falls back into the breaker’s rated 80% set
point. This electric principle should be kept in mind when using anything other
than 50 amp shore service and using appliances with electric motors, such as air
conditioners. When using outlets, care should be considered when applying
loads such as electric motors, heaters, coffee makers, toasters, hair dryers or
other large current consuming loads. The current rating is usually stated on
most electrical items. The current rating will either be rated in amps or watts.
Current ratings stated on electrical items will change slightly with voltage fluc-
tuations. As voltage increases current consumption decreases. As voltage
decreases current consumption increases. This may explain why in some
instances items operated at borderline voltage to current tolerances may seem
fine in one location but problematic in another.
NOTE: To calculate watts to amps simply divide the watt figure
by the voltage of which the item operates from. For example: The
electrical item is rated at 1,370 watts. Divide that by the operating
voltage of 115 volts which equals 11.913 amps. Use this formula to
calculate the amount of load to the available power supply.
A ground fault circuit interrupter “GFCI” can be found in two different
types of applications. One type is incorporated in a breaker used in 120 volt AC
breaker panels, the other is incorporated in an outlet. The GFCI, whether it is a
breaker or an outlet, offer two types of protection. One type of protection is
from over-current or shorts. It also provides protection for persons against haz-
ardous ground fault currents which can result in injury or death. Ground fault
currents are currents that flow from the “HOT” or power terminal through a
person to the ground. For example, touching a faulty appliance while standing
on or making contact with an electrical ground such as a water fixture, bath tub
or the earth. If the device has been properly installed it will offer protection
against the type of shock that can result from faulty insulation, wet wiring from
inside an appliance, or any device or equipment plugged in or wired to that cir-
cuit. The “ground fault” portion of the outlet or breaker uses sensitive electron-
Electrical Systems - House
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S I G N A T U R E
8 • 2 0 7
Circuit Breaker
GFCI BREAKERS
& OUTLETS
GFCI Outlet.