GE Industrial Solutions Entellisys Low Voltage Switchgear - Manuel (Page 25)

Entellisys Low Voltage Switchgear
25
Equipment shipping sections up to 10 feet long will be fastened
to the skids with four lag screws, one in each corner. The
shipping skid and lag screws are expendable material and may
be disposed of at the purchaser's discretion.
3. FASTEN SECTIONS TOGETHER-After placement of the
equipment and installing the anchor bolts loosely, the
various shipping sections must be rigidly fastened
together. Through-bolts fasten each section of the
switchgear equipment to the adjacent section. Figure 4-6
shows the location of the through-bolts.
Fig. 4-6. Location of through-bolts, see Fig. 4-7 (dimensions in
inches)
Figure 4-7 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. 4-7. 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 the main bus bars, and the splice plates for
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 4-8 illustrates the general location of the buses that must
be spliced across the shipping splits.
Fig. 4-8. Typical location of buses at shipping split