KX-III
MANUAL
www.
eaeusa
.us
26
Before Energizing
Energizing
7-
It is recommended that no energy is applied
to the line even if the insulation resistance test
described in page 12 section 2 successfully
completed.
8-
When the equipment is energized for the
first time, qualified electrical personnel must be
present. If short circuits and earth faults due to
damage or poor installation practices are not
detected in the exit procedure, serious damage
may occur when the power is turned on.
9-
When the power is supplied, the busway
must not have an electrical load. Since the
busway typically runs through several rooms
and ground level, care must be taken to see
that all devices supplied by the busway path
are in the "OFF" position.
10-
The equipment must be energized in
sequence starting from the welding end of the
system and working towards the load side. In
other words, it energizes the main devices, then
the feeder devices and then the branch-circuit
devices. Turn the devices to the "ON" position
with a solid positive motion.
11-
Once all overcurrent devices have been
switched on, loads such as lighting circuits,
contactors, heaters and motors can be turned
ON.
12-
When properly used, the busway will have
a moderate hum. Excessive noise may be
an indication of hardware that has not been
extruded or incorrectly mounted metal parts.
13-
All busway ratings, routings and supporting
systems should be checked as per final
isometric drawings.
14-
All busway ratings, routings and supporting
systems should be checked as per final
isometric drawings.
15-
All busway system should be checked
visually to be certain that they are clean
and secure. Loose and/or contaminated
connections increase electrical resistance
which can cause overheating.
16-
Any type of blower or compressed air
should not be used to avoid blowing dust into
busway joints, tap off boxes or circuit breakers.
If there is accumulation of dust and dirt, clean
it off by using a soft brush, vacuum cleaner, or
clean lint free rags.
17-
All joints should be correctly tightened
according to the torque value given and should
be marked. Then install the locking plates
correctly.
18-
All Tap Off boxes fed from the busway
should be on ''OFF'' position.
19-
The busway runs should be isolated by
disconnecting all connections to transformers,
switchboards, meters, etc.
20-
Insulation resistance test with an insulation
resistance test equipment rated 1000V AC
should be conducted to verify the integrity
of the system.This test should be performed
between phases, neutral and earth. Permanent
records should be kept of resistance readings.
If the insulation reading appears to be lower
than 1 megaohm, then the cause should be
investigated.
21-
The system phase squence should be
checked in order to match the busway phases
sequence before reconnecting all connections
to transformers, switchboards, meters, etc.
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