18 S&C Instruction Sheet 663-500
Installation
If the gasket does not compensate for an
uneven foundation, grout the bottom of the
enclosure as necessary. The grout should be
recessed enough to permit caulking. To com-
plete the installation, caulk around the bottom
of the enclosure with a weatherproof compound
applied with a standard caulking gun. A room-
temperature vulcanizing (RTV) silicon-rubber
compound is recommended. Apply a suitable
compound to fill the spaces between the cable
and the conduit, and cap all empty conduits to
prevent the entry of moisture or animals.
STEP 15.
Follow this procedure before leaving the site:
(a) Remove the lifting tabs and replace the bolts to
plug the blind-tapped holes.
(b) Check the interior of the pad-mounted gear.
Remove all foreign materials and tools that may
have been mislaid, and sweep the interior clear of
debris.
(c) Remove the tie wraps securing the dual-purpose
barriers to the inside of the door.
(d) Wipe barriers, insulators, switches, fuses, and
terminators clean with a mineral-spirits solvent
and dry with a clean cloth.
(e) Hang dual-purpose front barriers in their normal,
suspended positions. Also install optional inner
barrier panels, if furnished.
WARNING
Do not leave dual-purpose front
barriers in the “slide-in” position for more
than one week . These barriers are
intended for temporary use in the “slide-in”
position while work is being performed . If the
barriers are left in this position for an
extended period of time, there is the
possibility of corona discharge to the
barriers .
Prolonged exposure to corona discharge
can damage the barriers and result in a
flashover, injury, and equipment damage .
(f) Store spare SMU-20® Fuse Units or SM-4® Refill
Units (as applicable) in the fuse-storage racks
inside the fuse-compartment doors. Storage for
Fault Fiter® Electronic Power Fuses or current-
limiting fuses cannot be provided in these racks.
(g) Wipe down the exterior of the enclosure with a
clean, damp cloth. To preserve the integrity of
the surface, refinish any scratches or abrasions
with S&C touch-up finish and red-oxide primer,
which are available in aerosol spray cans. Order
catalog number 9999-058 for olive-green finish,
9999-080 for light gray finish, and 9999-061 for
red-oxide primer. No other finish or primer is
approved. The area to be touched up should be
cleaned to remove all oil and grease. Sand the
area, removing any traces of rust that may be
present, and make sure all edges are feathered
before applying primer.
(h) Labels indicating the area around the pad-
mounted gear must be kept clear so work on the
gear can be done safely are provided. These
labels (or equivalent labels) should be affixed to
the exterior of the gear.
(i) Refer to Instruction Sheet 663-503 for
instructions about installing and closing the
fuses.
NOTICE
When installing and closing a fuse, use an
S&C Grappler™ Handling Tool attached to a
suitable universal pole to ensure
complete fuse closure is attained . Failure to
completely close the fuse can result in
damage to the Uni-Rupter® Interrupter
Switch when the gear is energized .
When the installation is completed, refer to the
applicable S&C instruction sheets for operating instruc-
tions regarding the pad-mounted gear and source-transfer
control.
