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SECTION IB-1G-500
INSTALLATION & OPERATION INSTRUCTIONS
PAD-MOUNTED SWITCHGEAR TYPE PSI
REV. 1.6 - NOVEMBER 2017
PAGE 12
RECOMMENDED CLEARANCES
SEE TABLE BELOW
Minimum Clearance from
Energized Parts to Electrical
Ground without Barrier.
Minimum Clearance
from Energized Parts to
Electrical Ground without
Barrier.
Minimum Clearance
from Energized Parts
to Electrical Ground
without Barrier.
Every effort is made to ensure that customers receive an up-to-date instruction manual on the use of Federal Pacific
products; however, from time to time, modifications to our products may without notice make the information contained
herein subject to alteration.
601 Old Airport Road • Bristol, VA 24201 Phone (276) 669-4084 • FAX (276) 669-1869 • www.federalpacific.com • ISO9001:2015
ALTERNATE POSITION
Check clearances
for both normal and
alternate positions of
fuse termination bus.
© 2014 Electro-Mechanical Corporation
Phase-to-Phase or
Phase-to-Ground
with Barrier
Minimum Clearance
from Energized Parts
to Barrier
Typical Barrier-to-
Ground in Vicinity of
Energized Parts
Minimum Clearance
from Terminator
Skirts to Barriers
NORMAL
POSITION
15kV, 25kV and
Phase-to-
Phase-to-
35kV
Phase or
Phase or
Pad-mounted
Phase-to-
Phase-to-
Unit Rating
Ground
Ground
kV, BIL
without
Barrier
Barrier
Note
Note
95
5-1/2
125
7-1/2
150
10
G. E. Type G. Termi-matic
Termination System Shown
Minimum Clearance
from Energized
Parts to Barrier.
Minimum Clearance
from Terminator
Skirts to Barriers.
G. E. Type G. Termi-matic
Termination System Shown.
Recommended Clearances
(Minimum) in Inches
Barrier to
Energized
Ground in
Bus (or
Vicinity of
device) to
Energized
with
Barrier
Bus (or
device)
Note
Note
3
1
3/4
5
2-1/4
2
6
3
2
Terminator
Skirts to
Barrier
Note
1/2
1-1/4
2
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