Instruction Manual
Pow-R-Line Retrofit Panelboards
Page
11
Effective: November 2007
P1R & P2R Retrofit Panels
For more information visit: www.EatonCanada.ca
11/2007
DO NOT USE COMPRESSED AIR TO CLEAN OR
BLOW OUT DEBRIS OR DUST IN
PANELBOARDS.
TO PREVENT DAMAGE TO GROUND FAULT
CONTROL CIRCUITS, METERING CIRCUITS,
TRANSIENT VOLTAGE SURGE PROTECTION
(TVSS) OR OTHER CONTROL CIRCUITS, WHEN
MEGGERING PANELBOARD, ISOLATE
CIRCUITS FROM PANELBOARD SYSTEM
BEFORE BEGINNING THE MEGGER
OPERATION. BE SURE TO RECONNECT THOSE
CIRCUITS AFTER MEGGER TESTS ARE
COMPLETED.
NOTE: SOME GROUND FAULT CIRCUITS MAY
NOT BE FUSED, THEREFORE ISOLATION OF
THOSE CIRCUITS REQUIRES DISCONNECTING
WIRING FROM BUS BARS.
DO NOT USE ALTERNATING CURRENT (AC)
DIELECTRIC/MEGGER TESTING. DAMAGE TO
COMPONENTS WILL OCCUR.
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 panelboard 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 panelboards installed outdoors,
inspect the air space under the panelboard 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
activities and testing for future reference. The
condition of each panelboard 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.
Panelboard Events and Service
Interruptions
Short-Circuits, Ground-Faults and
Overloads
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 panelboard parts,
insulators, insulation material and overcurrent
devices must be replaced with renewal parts from
Eaton Electrical. (See Renewal Parts
Page 19
.)
Do not attempt to re-energize panelboard
overcurrent components 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 panelboard that occurs
after the panelboard 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 panelboard, should be
conducted. Replace all damaged parts and
components. Ensure that there are no gaps in the
panelboard enclosure that could cause exposure to
live parts. Contact Eaton Electrical for renewal parts
and assistance. After the physical damage has
been corrected, test equipment per the maintenance
process described in this publication.
HAZARDOUS VOLTAGE WILL CAUSE SEVERE
INJURY OR DEATH. DE-ENERGIZE BOARD
PRIOR TO SERVICING FUSIBLE DEVICES.
NEVER USE COMPRESSED AIR TO CLEAN OR
BLOW OUT DEBRIS OR DUST IN
PANELBOARDS.
DO NOT ATTEMPT TO RE-ENERGIZE
PANELBOARD OVERCURRENT DEVICES
AFTER ELECTRICAL EVENTS, SUCH AS
SHORT-CIRCUITS, GROUND-FAULTS AND
OVERLOADS,
UNTIL THE CAUSE OF THE EVENT HAS BEEN
IDENTIFIED AND CORRECTED.
IL01417001E
