Installation
on
S&C Mounting Pedestals
Step 22
For 69-kV Trans-Rupter II with 84-inch
phase spacing; 115-kV Trans-Rupter II; and
138-kV Trans-Rupter II:
Loosely bolt the cross base to the pedestals
using the
Z\x
–
13
3
1
C\v
bolts furnished. Using a
level, verify that the cross base is horizontal,
both lengthwise and side-to-side. Adjust the
anchor bolts as necessary to achieve this condi-
tion. Then securely tighten the
Z\x
–
13
3
1
C\v
bolts.
See Figure 23.
Step 23
For 69-kV Trans-Rupter II with 48-inch
phase spacing:
a. Loosely bolt the cross base to the pedestal,
using the
Z\x
–13
3
1
C\v
bolts furnished.
b. Attach two crossarm attachment brackets
to the cross base as shown on the catalog
drawing.
c. Attach the two support arms to the mounting
pedestal using the
B\,
–11
3
10 bolts furnished.
Fully tighten the bolts. Refer to the catalog
drawing for the placement of the support
arms.
d. Attach the support arms to the crossarm
attachment brackets using the
B\,
–11
3
1
Z\x
bolts furnished. Fully tighten the bolts.
e. Using a level, verify that the cross base is
horizontal, both lengthwise and side-to-side.
Adjust the anchor bolts as necessary to
achieve this condition, then tighten all bolts
for the mounting pedestal, cross base, and
support arms to a torque of 50-60 ft.-lbs.
Step 24
Slip the furnished steel plate(s) over the top of
each pedestal. Make sure the plates extend to
both sides of the pedestal. See Figure 24.
Step 25
Check the lower set of anchor-bolt nuts at each
mounting pedestal to verify that each is in con-
tact with the bottom of the plate. Hand-tighten
these anchor-bolt nuts as needed. See Figure 25.
Step 26
Securely tighten the upper set of anchor-bolt
nuts at each mounting pedestal. See Figure 25.
Figure 23. Bolt the cross base to the pedestals.
Cross base
Bolts
Pedestal
Figure 24. Slip the furnished steel plates over the top of each pedestal.
Pedestal
Steel plate
Figure 25. Securely tighten the upper set of anchor-bolt nuts at each
mounting pedestal.
Pedestal
Upper anchor-bolt nuts
16
S&C Instruction Sheet 731-502