S&C Omni-Rupter, Installation Manual

10

    S&C Instruction Sheet 765-500

Installation

Figure 2. Hoisting Omni-Rupter switch into position for triangular mount-

ing configuration.

Dead-ending 
bracket

Vertical support 
member

Open slotted hole

Hoisting slings

Figure 3. Typical pole-band attachment detail (upright mounting configu-

ration illustrated).

Pole saddle

Through-bolts  
(provided by customer)

¹⁄₂

-inch lag screw



Pole band

J-bolt

¹⁄₄





1





3



stiffening block



  Second lag screw installed diagonally opposite on lower corner 

of mounting bracket.

Mounting the Switch—Triangular 
Mounting Configuration

Ç

 WARNING

Lift the switch using the lifting brackets 
provided. Do not allow lifting slings to stress 
switch parts. Avoid allowing switch to swing 
while lifting.

Lifting the switch by the live parts or pole-

unit bases will damage the switch. Rough 
handling may cause misalignment of the 
blades and contacts.

Failure to lift the switch properly 

can result in switch damage, causing 
improper operation, arcing or electri-
cal shock.

a.  Make sure that the switch is fully closed.
b. Attach lifting slings ONLY to the vertical 

switch support member by looping around 
the dead-ending bracket and the switch 
mounting weldment.

c.  Lift switch as shown in Figure 2 until the 

lifting slings are just taut.

d.  Unbolt the wooden supports from the ship-

ping skid.

e.  Slowly and carefully lift the switch to the 

proper mounting height.

f.  Guide the switch so that the through bolts 

projecting from the utility pole slip into the 
holes in the switch’s pole-saddle. (The pole-
saddle is provided with a keyhole and an 
open slotted-hole for ease of installation.)

g.  Securely tighten the through-bolts.
h.  Remove the lifting slings from the switch.

Installing the Optional Pole Band

Step 4

Secure the pole-band (optional) to the mounting 
bracket on the switch, using the J-bolts pro-
vided. See Figure 3. Two 

¹⁄₄





 1





 3



 stiffening 

blocks are furnished to be used behind the pole-
band flanges, and underneath the J-bolt nuts. 
Lag the pole band to the back side of the pole 
through the hole in the center of the band, using 
one of the three 

¹⁄₂

-inch diameter lag screws 

provided. Then, lag the mounting bracket to the 
pole using the two remaining 

¹⁄₂

-inch lag screws 

as shown in Figure 3.