15
Instruction Manual
IB015002EN
Effective November 2021
Pow-R-Line CS switchboards
EATON
www.EatonCanada.ca/PRLCS
Overcurrent devices
Maintenance instructions and field-testing for overcurrent devices
are included with the instruction leaflet for each device within a
family . Refer to the leaflet on each device . If leaflets are missing,
contact Eaton for replacement .
Circuit breakers
Visually inspect circuit breakers for signs of discoloration, cracking,
scorching, overheating or broken parts . Exercise the breaker
operating mechanism making sure it is opening and closing . A
breaker showing signs of any one of these issues should be
replaced .
Fusible overcurrent devices
Visually inspect the switching mechanism and fuse connections .
Visually inspect the fusible devices for signs of discoloration,
cracking, scorching, overheating or broken parts . Replace any worn
parts or the entire switch .
Fuse replacement
DANGER
HAZARDOUS VOLTAGE WILL CAUSE SEVERE INJURY OR DEATH.
DE-ENERGIZE BOARD PRIOR TO SERVICING FUSIBLE DEVICES.
Be sure the switch mechanism is turned to the OFF position before
attempting to remove fuses . Visually inspect the switch contacts,
blades and mechanism to ensure that the mechanism is in the open/
off position .
Check fuses to ensure that they are of the proper class, ampere,
voltage and interrupting rating . Ensure that non-current limiting
fuses are not used as replacements for current limiting fuses . Never
attempt to defeat rejection mechanisms which are provided to
prevent the installation of the incorrect class of fuse .
Meters, controllers, surge equipment, and other devices
Individual devices should be maintained according to the specific
instructions supplied for each device . Remove dust and dirt from
exterior with a dry lint-free cloth . Unless specifically instructed in the
individual device instruction leaflet, do not attempt to open sealed
cases or containers .
WARNING
NEVER USE COMPRESSED AIR TO CLEAN OR BLOW OUT DEBRIS OR
DUST IN SWITCHBOARDS.
Secondary wiring
Check all wiring connections for tightness, including those at the
current and potential transformers, if present, and at all terminal
blocks . Check all secondary wiring connections to ensure they are
properly connected to the switchboard ground bus, where indicated .
Look for broken wire strands and pinched or damaged insulation .
Ventilation
Check all grills and ventilation ports for obstructions and
accumulations of dirt . Clean ventilation ports, if necessary . For
switchboards installed outdoors, inspect the air space under the
switchboard to be sure that it is clean and clear of debris, leaves and
obstructions .
Records
It is essential to maintain the equipment in satisfactory condition .
Maintain a permanent record of all maintenance acti vities and
testing for future reference . (See
Appendix B
.)
The condition of each switchboard should be recorded as a guide
for anticipating the need for any replacement parts or components
or special attention at the next regular maintenance period . It is
recommended that a series of inspections be made at quarterly
intervals until the progressive effects of local conditions can be
analyzed to determine a regular schedule .
Switchboard events and service interruptions
Short-circuits, ground faults, and overloads
WARNING
DO NOT ATTEMPT TO RE-ENERGIZE SWITCHBOARD OVER- CURRENT
DEVICES AFTER ELECTRICAL EVENTS, SUCH AS SHORT CIRCUITS,
GROUND FAULTS AND OVERLOADS, UNTIL THE CAUSE OF THE EVENT
HAS BEEN IDENTIFIED AND CORRECTED.
A thorough assessment, identification and correction of the
event origin must be completed . An additional assessment of
the conductor insulation and other insulating materials should be
made . Replace all damaged insulation materials, conductors and
overcurrent devices . Original switchboard parts, insulators, insulation
material and overcurrent devices must be replaced with renewal
parts from Eaton . (See Renewal Parts
) .
Do not attempt to re-energize switchboard overcurrent com-
ponents after electrical events, such as short circuits, ground
faults and overloads, until the cause of the event has been
identified and corrected.
After the event has been rectified, test equipment per the
maintenance process described in this publication .
Physical damage
Any physical damage to the switchboard that occurs after the
switchboard is installed must be corrected . A thorough inspection,
which includes the exterior enclosure and dead-front, plus interior
components in the damaged portion of the switchboard, should be
conducted . Replace all damaged parts and components . Ensure
that there are no gaps in the switchboard enclosure that could
cause exposure to live parts . Contact Eaton for renewal parts and
assistance .
After the physical damage has been corrected, test equipment per
the maintenance process described in this publication .
