Grounding systems, anti corrosion systems for Marine Electronics |
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Grounding Systems for Marine Electrical Systems
and Marine Electronics
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In
electricity supply systems, an
grounding
system defines the
electrical potential of the conductors relative to that of the
Earth's conductive surface. The choice of earthing system has
implications for the safety
and
electromagnetic compatibility of the power supply. Note that
regulations for earthing (grounding) systems vary considerably between
different countries.
A protective earth (PE) connection ensures that all exposed
conductive surfaces are at the same electrical potential as the surface
of the Earth, to avoid the risk of electrical shock if a person touches
a device in which an insulation fault has occurred. It ensures that in
the case of an insulation fault (a "short circuit"), a very high current
flows, which will trigger an overcurrent protection device (fuse,
circuit breaker) that disconnects the power supply.
A functional earth connection serves a purpose other than
providing protection against
electrical shock. In contrast to a protective earth connection, a
functional earth connection may carry a current during the normal
operation of a device. Functional earth connections may be required by
devices such as
surge suppression and
electromagnetic-compatibility filters, some types of
antennas and various measurement instruments. Generally the
protective earth is also used as a functional earth, though this
requires care in some situations.
* More Data and
Information on Grounding Systems
Electrical Equipment at
PSICOMPANY.COM
Battery Charger,
DC Power Conditioner,
Grounding Systems,
Marine Search Light
Power Converter,
Power Supply,
AC and DC Electrical Panel,
Inverter |
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