Eaton Industrial Switchgear - General Information

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22/4 Approvals and shipping classifications for world markets
2010 CA08103002Z-EN
Advantages
Total insulation is the best possible
protective measure from the user’s
point of view, avoiding, reliance on the
possibly doubtful skills of unknown
installation personnel. Furthermore,
protective measures based on
grounding are often extremely
difficult, if not impossible (in the
Middle East, for example, due to the
dryness of the ground).
Insulated enclosures completely
eliminate the need for any additional
protection against corrosion. The
transparent covers contribute
significantly to the correct operation
of a system, because switchgear
operation can be monitored even with
the doors or covers closed, thus
virtually eliminating the possibility of
these being left open through care-
lessness. The transparent cover is an
important contribution to safety,
especially where exports to areas of
uncertain skills are concerned.
Overcurrent protection devices
Always use circuit breakers or motor-
protective circuit breakers and avoid
fuses wherever possible.
Advantages
The operational reliability of a system
is especially important for export
contracts. Circuit-breakers and motor-
protective circuit breakers provide
this reliability in full measure since
they can be immediately reclosed
once a fault has been cleared, they
disconnect all poles, they have ideal
protection through high tripping
accuracy and they can be used for
selective operation. Because they
have no fuses or other consumables,
they also greatly reduce the problem
of obtaining replacement parts. The
advantages of fuseless design for
export are especially evident in this
case. No complicated investigation is
needed to find out which fusing
system is used in the respective
location and which specifications
have to be followed to select the
correct fuses. Often several different
fuse systems with widely varying
characteristics are used side-by-side
in the same country. For the uninitiated,
it may be almost impossible to find the
right fuse in these circumstances.
These problems do not arise where
a circuit-breaker is used.
Main switch and safety switch
Use devices with positive contact
separation and clear switch position
indication.
Advantages
The mechanical coupling of the
actuating element with the contacts
ensures that the Off position is
indicated only when all main contacts
are separated by the prescribed
distance, and only in this position can
the switch be padlocked. This ensures
safety when carrying out maintenance
and repair work on the installation or
machinery.
Shipping classifications
Many Moeller-branded Eaton devices
are approved by all important shipping
associations: Germanischer Lloyd,
Lloyd's Register of Shipping, Bureau
Veritas, Russian Maritime Register of
Shipping, Registro Italiano Navale,
Det Norske Veritas, Polski Rejestr
Statków, etc.
Because the status of currently valid
shipping approvals is subject to
significant variations, this Catalog
does not provide an overview, as this
would quickly be out of date.
Please see our corresponding,
up-to-date information on the Internet.