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3 . s w I TC h G e a r D e s C r I p T I o N
3.13 Ground bus
All AKD-20 and Entellisys switchgear sections are
grounded to the internal equipment ground bus,
Fig. 3.29, located at the bottom or the top of the
cable compartment.
3.14 Outdoor switchgear
Switchgear designed for outdoor installations is
fully weatherproofed. See Fig. 3.30. A weatherproof
housing completely encloses the switchgear and
may be provided with a walk-in front aisle for easy
access to all controls and instruments.
Aisle lighting with wall switch, Fig. 3.30 and a
115-volt GFCI convenience outlet are standard
devices supplied with front aisle, outdoor
switchgear equipment. Also included in the walk-in
front aisle area are the breaker-lifting device and
storage provision for the breaker lifting device
operating crank as shown in Fig. 3.30.
A double-wide door with panic latch is provided
for breaker loading.
—
Fig. 3.29
Cable termination
compartment
—
Fig. 3.30
Switchgear outdoor
enclosure
1. Feeder run backs
2. Vertical riser bus covers
3. Horizontal main bus
4. Ground bus (behind steel cover)
1. Interior lighting switch
2. GFCI convenience outlet
3. Panic latch
4. Breaker lifting device crank
5. Walk-in aisle - 46 inches deep (approx.)
—
Fig. 3.29
—
Fig. 3.30
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