16 MNS-SG Operation and Maintenance | Manual
8.
Attach the end flaps to extension on the opposite side of
the wall from the switchgear, outside the vent hole.
Connect the end flaps using 14 M6-1x16 bolts, washers
and nuts. Torque to 3.5 ft/lbs (4.7 Nm).
2.2.
Install rear-exhaust plenum
Rear exhaust plenum
The preferred location for the rear-exhaust plenum is the
middle of the lineup, but it can be placed in any part of the
lineup.
1.
Remove the top covers of busbar and cable
compartments where the plenum will be attached.
2.
Install the top cover on the section where the rear exhaust
will vent from the lineup. This cover is the same as the
others, but the back side is removed to allow the gas to
flow out of the lineup.
Top cover
–
Rear exhaust
3.
Install the top covers over each cable compartment of the
lineup securing them with the six M6 x 16 screws supplied
with each section. Torque to 3.5 ft/ lbs (4.7Nm).
Install top covers
4.
Connect each top cover to the adjacent cover with 10 M61 x
16 bolts, using the supplied washer and nuts for each bolt.
Torque to 3.5 ft/lbs (4.7 Nm).
End Cover
Top Cover
Top Cover
Rear exhaust
Top Cover
End Flaps
Rear extension connection
Rear cover
Rear Transition
Extension