December 12, 2016
© S&C Electric Company 1961-2016, all rights reserved
Instruction Sheet 761-515
S&C Alduti-Rupter® Switches
Outdoor Distribution (14.4 kV and 25 kV)
Three-Pole Vertical-Break Style
Rotating Operating Mechanism
Installation
Table of Contents
Section
Page
Section
Page
Introduction
Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Read this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . . 2
Retain this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . 2
Proper Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operating Considerations . . . . . . . . . . . . . . . . . . . . . . . . 2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warranty Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Information
Understanding Safety Alert Messages . . . . . . . . . . . . . . 4
Following Safety Instructions . . . . . . . . . . . . . . . . . . . . . 4
Replacement Instructions and Labels . . . . . . . . . . . . . . . 4
Location of Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Precautions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Shipping and Handling
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation
Before Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting to Wood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating Pipe Preparation . . . . . . . . . . . . . . . . . . . . . . 9
Attaching Couplings to the Switch Poles . . . . . . . . . . . . 10
Attaching Couplings to Outboard Bearings . . . . . . . . . . 12
Installing the Switch to the Mounting Structure . . . . . . . 12
Installing Pipe Couplings with Piercing Set Screws . . . 13
Installing the Interphase Operating Pipe . . . . . . . . . . . . 14
Installing the Vertical Operating Pipe . . . . . . . . . . . . . . 15
Installing the Rotating Operating Handle . . . . . . . . . . . 18
Installing Operating Handle with Key Interlock . . . . . . . 19
Checking Alignment and Adjusting the Stop Plates . . . 22
Checking Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Connecting High-Voltage Conductors . . . . . . . . . . . . . . 26
Operation
Opening and Closing the Switch . . . . . . . . . . . . . . . . . . 27
