1075 Old Airport Road • Bristol, VA 24201 Phone (276) 669-4084 • FAX (276) 645-8206 • www.federalpacific.com • ISO9001:2015
SECTION IB-2B-800A
SUPPLEMENT TO INSPECTION AND MAINTENANCE RECOMMENDATIONS
TYPE PSE DEAD-FRONT PAD-MOUNTED SWITCHGEAR
JUNE 2021
Page 3
j. After cleaning and drying, inspect all metallic components of the
switches and fuse mountings for corrosion. Operating components
such as door latching mechanisms, springs, probes, switchblades,
contacts, bus, ground studs and ground bars, and hardware items, such
as nuts, bolts, washers, etc. displaying corrosion must be replaced.
k. Lubrication of Non-Current Carrying Parts – Non-current carrying parts,
such as operating mechanisms, hinges and latches, may be lubricated
with any lubricants that the user has determined to be suitable for such
applications.
l. Lubrication of Current Carrying Parts – NYE Reolube 363 is the only
approved lubricant for current carrying parts, as listed below. Apply
only a thin coat of lubricant.
• Fuse panel main contact stab.
• Contact interface at the fuse-mounting lower contact (hinge end).
• Contact interface at the fuse-mounting upper contact (receiver).
• Main-contact stab (stationary contact) on the Auto-jet
®
switches.
m. Install new vent plugs (or re-install cleaned existing plugs) at the bottom
of the medium voltage compartment.
n. Verify that all bolts remain torqued for tightness and circuit continuity.
o. Reinstall the barriers.
p. Remove the old roof gasket and install a new roof gasket.
q. Ensure that the roof and interior are dry before re-installing.
r. Verify the integrity of terminations in accordance with the terminator
manufacturer’s recommendations. Replace any cable accessories or
other third party components as appropriate.
s. Verify the integrity of SML-20 components and end fittings, FP-3097
end fittings, SMU-20 and DBU fuse units/refill units and SML-4Z fuse
holders and refill units in accordance with the fuse manufacturer’s
recommendations.
• All fuses and fuse refill units in the switchgear which were not
sealed and known to be free of moisture must be considered to be
potentially damaged and are to be discarded and replaced.
• A silencer that has been submerged must be replaced as any residue
inside may clog the exhaust path and cause a misoperation of the
fuse assembly when a subsequent fuse operation occurs.
t. Replace instruction manuals and any damaged or obscured name-
plates, ratings labels and hazard alerting signs (DANGER, WARNING,
and CAUTION) of the pad-mounted switchgear.
u.
BEFORE RETURNING THE SWITCHGEAR TO SERVICE:
i. With the equipment de-energized, perform one or two mechani-
cal operations of each switch and fuse mounting to verify correct
operation and alignment as described in Federal Pacific Instruction
Bulletin IB-2A-210 – “Instructions for Installation and Operation,
Type PSE. Dead-Front Pad-Mounted Switchgear, 15kV – 25kV.”
ii. Verify the integrity of the insulation system in the equipment by
applying high potential testing in accordance with applicable
industry standards and the utility standard operating practices.
iii. As the combined effect of having many components submerged
in water, which may have been polluted with heavy levels of
contamination, and where there is a potential for hidden dam-
age or hazards to go unnoticed, it is recommended that the unit
be energized by a means the is initiated from a location OTHER
THAN by operating the components such as switches and fuses
in the specific switchgear unit being returned to service. For this
purpose, Federal Pacific has developed a CO
2
actuated Portable
Remote Operating Mechanism (PROM). Refer to Federal Pacific
for details on this product.
5. If there is any doubt or suspicion about any component, it should be
replaced.
Replacement Parts and Labels
If parts or labels are required, they may be ordered by contacting your local
Federal Pacific Representative. A directory of the representatives can be found
www.federalpacific.com. You may also contact Federal Pacific directly
at 276-669-4084.
If parts or labels are ordered, the unit serial number must be provided along
with the part description.
Table 1 — Recommended Electrical Clearances
15kV, 25kV
Pad-Mounted
Unit Rating
kV BIL
Recommended Clearances (minimum, in inches)
Phase-to-Phase
or
Phase-to-Ground
Without
Barrier
Phase-to-Phase
or
Phase-to-Ground
With Barrier
Energized
Bus
(or device)
to Barrier
Barrier-to-Ground
in Vicinity
of
Energized Bus
(or device)
Terminator
or
Insulator
Skirts
to Barrier
95
5-1/2"
3"
1"
3/4"
1/2"
125
7-1/2"
5"
2-1/4"
2"
1-1/4"
CAUTION
Do not put any lubricant on switch probe or puffer contacts. Refer to
Inspection Bulletin IB-2B-800, section 10, "Lubrication of Current
Carrying Parts".