GE Industrial Solutions Spectra II Series Plug-in and Feeder Busway with BlueCoat Epoxy Insulation System - Manual (Page 29)

Spectra and Spectra II Series™ Plug-In and Feeder Busway
Busway Maintenance Procedures
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Busway Maintenance Procedures
Protecting the Busway from Contamination
Be particularly careful during installation to
protect the busway from contaminants. Should
the busway become contaminated with water, it
should be baked dry or replaced. Contact GE for
instructions.
Maintenance Procedures
A periodic maintenance schedule should be
established to obtain the best service from the
busway. An annual check and overall
maintenance procedure for the busway, busplug
devices, and all connections should be followed as
a minimum requirement. Equipment subject to
highly repetitive operation may require more
frequent maintenance.
Keep a permanent record of all maintenance
work. The record should include a list of periodic
checks and tests, the dates they were performed,
the condition of the equipment, and any repairs or
adjustments. Maintenance employees should
follow all recognized safety practices, such as
those contained in the National Electrical Code,
OSHA, and in company or other safety regulations.
Inspecting the Busway
 The busway should be periodically inspected
to spot trouble areas or changes in operating
condition.
 Remove any accumulations of dust, dirt, or
other foreign matter.
 Eliminate moisture from leaks or condensation
dripping from pipes.
 Check for any equipment installed near the
busway that might cause damage because of
external heating.
 Inspect the Belleville washers at the joint to
ensure that the springs are flat. Flat washers
indicate that proper joint pressure is being
maintained. It is not necessary to recheck the
torque on joint bolts so long as the visual
check is satisfactory. If the washers are not
flat, it is recommended to de-energize the
Busway, completely loosen the joint bolt and
re-tighten.
Inspecting Current-Carrying Components
WARNING: De-energize the busway before
performing any of the following operations.
Failure to do so may result in serious injury or
death.
AVERTISSEMENT: Mettez hors tension la
canalisation pour barres omnibus avant
d'entreprendre n'importe laquelle des opérations
suivantes. Il y a risques de blessures graves ou de
mort, si cette procédure n'est pas respectée.
 To check joints covered by a shield, as shown
in Figure 19, carefully pry out the rubber plug
by sliding a screwdriver tip under the plug,
pressing in slightly toward the hole center, and
prying out. (The bolt head is usually on the side
of the bus marked Ø SIDE, but the installer
may have reversed the bolt). Tighten the bolt
to 50 lb-ft (68 N-m). Clean the outer surface of
the shield. Reinstall the rubber plug by hooking
in one edge and pressing the plug in place.
NOTE: It is important to press the center of the
plug inward several times to center it in the hole.
Liquid soap can be used to lubricate the plug for
re-installation.
NOTE: Il est important de presser plusieurs fois le
centre de la fiche boîtier pour le centrer dans le
trou. On peut utiliser du savon liquide pour
lubrifier la fiche boîtier si on la réinstalle.
 Carefully inspect all visible electrical joints and
terminations for tightness of bolts, nuts, and
other fasteners.
 Check for signs of overheating at joints,
terminations, and fuse clips.
 Check for deterioration in insulating material
or melting of sealing compound.
 Ensure that the condition that caused any
overheating has been eliminated.