Section 7—Maintaining the Switchboard Power-Style™ QED-2 Switchboards
41© 1988–2018 Schneider Electric All Rights Reserved80043-055-13
ENGLISH
4. Check for signs of rodent nesting in the switchboard. If required, use a good
exterminating technique in the general area of the switchboard.
NOTE: Do not place or use exterminating substances and chemicals inside
the switchboard. Some products attract rodents.
5. Carefully inspect all devices for any visibly worn-out, cracked, or missing parts.
6. Manually open and close switches and circuit breakers several times to verify
they are working properly.
7. Verify that all key interlocks and door interlocking provisions are
working properly.
Bus Bar Joints, Lug Terminations, and Insulating Materials
1. Bus bar joints are maintenance-free. Do not retighten them after the
pre-energizing checkout procedure is complete.
2. Check all bus bar joints and terminal lugs for any pitting, corrosion, or
discoloration resulting from high temperatures or subjection to high fault
conditions. If any damage has occurred, replace the bus bars or lugs. If
cleaning is required, use Lectra-Clean
®
, made by CRC.
3. Inspect all insulating materials. Before re-energizing the switchboard, replace
insulators with any visible damage (such as cracks).
General Lubrication Information
For field maintenance re-lubrication of blade/jaw components in switches 600 V
and below, use BG20 High Performance Synthetic Grease from Dow Corning
(Schneider Electric catalog number SWLUB). This grease is applicable for the
following switches:
• Bolt-Loc
• QMB Main and Branch
• QMJ Branch
• QMQB
1
Main and Branch
For bus/plug-on connections, use electric joint compound, Schneider Electric
catalog number PJC7201.
For Masterpact drawout connections, use only Schneider Electric catalog number
S48899 Electric Joint Compound.
Automatic Transfer Switches
Consult the documentation provided by the manufacturer for all installation,
operation, and maintenance instructions for these devices.
NOTIC
HAZARD OF PLATING DAMAGE
• Do not sand or remove plating on any bus bar, splice bar, or terminal lug.
• Damage to plating can result in overheating. Replace damaged part.
Contact Schneider Electric Services at 1-888-778-2733 (US) or
1-800-565-6699 (Canada).
Failure to follow these instructions can result in equipment damage.
1
QMQB switches are available in Canada only.
To Next Page
Loading...
General