12 S&C Instruction Sheet 765-510
Triangular Mounting Configuration
WARNING
Lift the switch by the attaching lifting slings to the
vertical switch support member by looping around
the dead-ending bracket and the switch mounting
weldment. Do not allow lifting slings to stress switch
parts. Avoid allowing the switch to swing while lifting.
Lifting the switch by the live parts or pole-unit bases
will damage the switch. Rough handling may cause
damage to the blades and contacts.
Failure to lift the switch properly can result in
switch damage, causing improper operation,
arcing, or electrical shock.
STEP 3
(a) Make sure the switch is fully closed.
(b) Attach the lifting slings only to the vertical
switch support member by looping around
the dead-ending bracket and the switch
mounting weldment.
(c) Lift the switch as shown in Figure 4 until the
lifting slings are just taut.
(d) Unbolt the switch from the shipping skid.
(e) Slowly and carefully lift the switch to the
proper mounting height.
(f) Guide the switch so the through-bolts
projecting from the utility pole slip into the
holes in the switch’s pole-mounting bracket.
(The pole-mounting bracket is provided
with a keyhole and an open slotted hole for
ease of installation.)
(g) Securely tighten the through-bolts. Install
the two -inch diameter lag screws on the
front of the mounting bracket, diagonally
from each other. See Figure 5.
(h) Remove the lifting slings from the switch.
If desired, a crossarm brace (user-furnished)
may be attached to the base for switches in the
triangular mounting configuration. Mounting
brackets for crossarm braces must be specified
separately. Consult your nearest S&C Sales
Office for details.
Figure 4. Hoisting the triangular mounting configuration
Omni-Rupter Switch into position.
Lifting slings
Vertical support
member
Installation
Figure 5. A typical pole-mounting bracket attachment detail
(triangular mounting configuration illustrated).
● Install two lag screws on front of the mounting bracket.
½- inch lag screw
●
Through-bolts
(provided by
customer)
Pole
mounting
bracket
Through-
bolt
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