24 S&C Instruction Sheet 681-510
Maintenance
Enclosure Finish
The responsibility for ensuring a fi nish protects the pad-
mounted enclosure lies with both the manufacturer and
the user. The enclosure provided for pad-mounted style
switchgear is fi nished with the S&C Ultradur II Outdoor
Finish, which provides lasting pro tection for the enclosure.
To retain this pro tection, the user should take periodic
corrective action as follows:
STEP 1.
Touch-up any penetration of the fi nish to bare
metal—such as scratches and abra sions caused
by shipping or vandalism—to maintain the
original integrity. S&C touch-up fi nish and
primer are available in aero sol spray cans. See
Figure 45. No other fi nish 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.
STEP 2.
Provide an occasional simple wash down—such
as an automobile would be given—to remove
surface contaminants. Use any ordinary mild
household detergent solution.
STEP 3.
In those cases where the enclosure must
be refi nished by the user before the fi nish
has weathered—for example, to match
other equipment—a special precaution must be
taken. The entire surface must be sanded to
provide a tooth to bond the new coat to the
Ultradur II Outdoor Finish.
Maintenance Recommendations in Extremely
Corrosive Environments
For applications involving exposure to extremely corrosive
environmental conditions (i.e. industrial chemicals,
CaCl
2
, etc.) that may affect the condition of the switchgear
tank, S&C’s recommended periodic cleaning could provide
extended life. For units having already experienced some
corrosion, follow the instruction in the “Enclosure Finish”
section for specifi c instructions. If no further exposure to
a corrosive environment is expected, one treatment may
be enough.
To remove accumulated contaminants, use a mild
detergent and potable water. The detergent should be mild
soap, not bleach or any cleaners that contain chloride.
Cleaning alone may be sufficient in most cases, but the
application of a water-displacing oil-based spray after
washing is further recommended for extremely corrosive
environments.
Figure 45. Order by catalog number:
9999-058 for an olive green finish,
9999-080 for a light gray finish, and
9999-061 for red-oxide primer.
Touch-up
finish
Red-
oxide
primer
