41
A K D - 20 A N D E NTE LLYS I S
LO W VO LTAG E S W I TC H G E A R
Outdoor equipment
The recommended procedure for installing
switchgear supplied in an outdoor enclosure
is as follows:
1. Position the equipment - Position the equipment
or sections of equipment in their final location.
If the equipment line-up was split into two or
more shipping sections, it is necessary to first
match, line up, and reassemble the multiple
sections into an integrated equipment assembly.
2. Apply gasket material - After removal of the
lifting plates (see Fig. 2.4), it is necessary to
apply the presstite gasket material, Figs. 4.17
and 4.18, to the mounting surface of the roof
flange. The gasket material is supplied with
the equipment.
3. Align sections - Align the two sections with
the mating surfaces butted together.
4. Fasten sections together - Referring to Fig. 4.17,
the mating sections of the outdoor enclosure
should be immediately bolted together including
the front and rear vertical posts and the roof
flange. Each vertical post will require ten 3/8-16 x
1-inch bolt assemblies, see Fig. 4.19; the roof
flange will require either eleven or twelve ¼-20 x
1/2-inch thread forming bolts. The bolts should
be tightened with a torque of 7-9 ft-lbs. Fig. 4.18
is a cross-sectional view of the assembled
roof joint.
—
Fig. 4.17
Outdoor enclosure
shipping split assembly
1. Lifting plates (quantity of (4) per shipping split;
rear plates not shown)
2. Splice plates
3. Front vertical post
4. Rear vertical post
5. Roof flange
6. Gasket
7. Roof cap
See
note 8
See
note 12
See
note 8
See
note 12
1
3
7
1
3
4
5
6
2
