Instruction Manual
Pow-R-Line Retrofit Panelboards
Page
9
Effective: November 2007
P1R & P2R Retrofit Panels
For more information visit: www.EatonCanada.ca
11/2007
TO PREVENT
DAMAGE TO GROUND FAULT
CONTROL CIRCUITS, METERING CIRCUITS, 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 AC DIELECTRIC/MEGGER
TESTING.
Energizing Panelboard
Extreme hazards can exist when energizing
electrical distribution equipment and panelboards.
Take all precautions necessary to protect people
and property when energizing the equipment. Short
circuits and ground faults may exist as a result from
inadequate installation. Short circuits and ground
faults within the panelboard can cause catastrophic
damage, injury and death.
1. Determine and always use proper Personnel
Protective Equipment (PPE) per NFPA
70E.
2. Prior to energizing the panelboard, turn OFF
all overcurrent devices and loads internal to
the panelboard plus mains in downstream
equipment.
3. Verify and follow the sequence of
energizing circuits and loads. Verify phase
sequencing on loads, such as motors, which
can be damaged or destroyed by incorrect
phase connections.
4. If provided, use remote operators to close
and energize panelboard, overcurrent
devices and loads.
5. Beginning with the main(s), turn ON each
overcurrent device.
Maintenance
It is essential to maintain the equipment in
satisfactory condition.
To ensure continued quality service, a systematic
maintenance schedule is vital. Facility operation and
local conditions vary to such an extent that the
schedule must be prepared to suit the conditions.
The maintenance schedule for individual devices,
such as circuit breakers, meters, fusible switches,
etc., should be based upon recommendations
contained in the individual instruction leaflet for each
device. Inspection and test operations should be
coordinated with an overall testing program to result
in the least operating inconvenience and system
shutdowns.
Prior to performing any maintenance on the
panelboard, first de-energize the panelboard at
the source. Use lockout/ tag-out precautions as
prescribed in OSHA, NFPA 70E and other safety
manuals.
The panelboard should be given a thorough
maintenance check annually.
Exercise extreme care to prevent the equipment
from being connected to the power source while
tests
are being conducted.
IL01417001E
