GE Industrial Solutions AKD-20 Low Voltage Switchgear - Manuel (Page 34)

AKD-20 Low Voltage Switchgear
Chapter 4. Equipment Installation
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Figure 4-9 illustrates the installation of the through-bolts. The
through-bolts are in the front and rear compartments. The nut and
bolt assembly should be tightened with a torque of 25-30 ft-lbs.
Fig. 4-9. Through-bolt installation
All of the hardware required for assembling the equipment across
the shipping splits is furnished with the equipment. If a transformer
is included in the line-up of equipment, the transformer flange
should be aligned with the opening in the side of the transition
section and fastened together using the 3/8-16 bolts, nuts and
washers supplied with switchgear. The fastener assembly should
be tightened with a torque of 25-30 ft-lbs.
4. COMPLETE THE ELECTRICAL INTERCONNECTIONS - After
completing the mechanical connections between the several
sections of equipment, the electrical interconnections should
be completed. This includes the installation of splice plates
for the main bus bars, the neutral bus, and the ground bus in
addition to the control and metering circuits.
WARNING: All switchgear equipment must be adequately
grounded for safety. Failure to ground equipment properly may
result in serious injury.
ADVERTISSEMENT: Tout l’équipement du dispositif de
commutation doit être mis à la terre adéquatement de manière
sécutaire. Des blessures sérieuses peuvent survenir si l’on omet
de mettre l’équipement à la terre correctement.
Figure 4-10 illustrates the general location of the buses that must
be spliced across the shipping splits.
Fig. 4-10. Typical location of buses at shipping split