1075 Old Airport Road • Bristol, VA 24201 Phone (276) 669-4084 • FAX (276) 645-8206 • www.federalpacific.com • ISO9001:2015
SECTION IB-1G-805
INSPECTION & MAINTENANCE RECOMMENDATIONS
PAD-MOUNTED SWITCHGEAR TYPE PSI
JUNE 2021, REV 1.1
Page 4
8. Maintaining the Exterior
The exterior finish can be maintained by periodic washing, touch up of any scratches
and abrasions, and waxing. For areas to be touched-up, clean the area removing all rust.
Feather the paint of areas adjacent to rusted areas to be painted. Apply a red-oxide primer,
available in spray cans from a local paint supplier or home improvement store. Spray cans
of the topcoat finish are available from Federal Pacific (specify the original color).
9. Replacing Labels
Replace any missing, damaged or obscure labels. Replacement labels are available
from Federal Pacific.
10. Lubrication
When maintenance is performed, check for lubrication at the following locations:
Figure 1. Lubricate only the interface between the main-
contact stab and the switch blade marked by arrows.
Figure 3. View shows present
cast fuse main contact at far
left and previous main contact,
which was a weldment, at right
(removed from load-break fuse
mounting).
LUBRICATE ONLY:
1. On the switch main-contact stab. See Figure 1.
2. On the contact interface at the fuse-mounting stationary main contact. See
Figure 2.
3. Fuse Mountings
a. Load-Break Fuse Mountings.
On the forward contact that engages the fuse contact rod and on the fuse
hinge contacts that engage the fuse contact ferrule. The contact rod on
the fuse end fitting and the lower fuse ferrule on the fuse unit of the fuse
assembly. Refer to fuse manufacturer's instructions.
b. Non-Load-Break Fuse Mountings
On the upper main contact of the fuse mounting and the contact-rod of the
fuse-unit end fitting or the upper-ferrule contact of the fuse holder, and on
the fuse hinge contacts that engage the lower ferrule of the fuse unit or fuse
holder.
4.
DO NOT LUBRICATE ANY OTHER AREAS.
5. If lubrication is required apply a coating of NYE Rheolube 363, which is the
only approved lubricant.
11. Verify Security Devices
Verify the operational integrity of security devices such as door latches, penta-
head bolts, hinges and key-interlock systems. Make certain padlocks are properly
installed on all doors and covers.
12. Specification
Torque Value: For bus bar connections, apply 50 foot-pounds torque to 1/2-13
UNC 18-8SS (or equivalent) hex bolts. For other bolted connections, refer to factory.
High-Pot Test Value: After cleaning and restoring equipment, Per IEEE C37.74 — 75%
of 35kV for 1 minute.
Figure 2. Lubrication points on load-break fuse mounting (at top)
include three contact locations, namely, the main contact, forward
contact and fuse hinge contacts. Two lubrication points on non-
load-break fuse mountings (above).
Fuse-hinge contacts that
engage the fuse contact
ferrule
Contact interface at
stationary main contact
casting (or rod on main-
contact plate for older
designs)
Forward contacts
that engage the fuse
contact rod
© 2021 Electro-Mechanical Corporation
Lubrication is NOT required on any other surfaces than the locations identified
below. Applying lubrication in other areas may reduce mechanical and electrical
performance. DO NOT OVER LUBRICATE!
WARNING
