2
S&C Instruction Sheet 761-525
Introduction
Qualified Persons
WARNING
Only qualified persons who are knowledgeable in the installation, operation, and
maintenance of overhead and underground electric distribution equipment, along
with all associated hazards, may install, operate, and maintain the equipment
covered by this publication . A qualified person is someone who is trained and
competent in:
• The skills and techniques necessary to distinguish exposed live parts from nonlive
parts of electrical equipment
• The skills and techniques necessary to determine the proper approach distances
corresponding to the voltages to which the qualified person will be exposed
• The proper use of special precautionary techniques, personal protective
equipment, insulated and shielding materials, and insulated tools for working on
or near exposed energized parts of electrical equipment
These instructions are intended only for such qualified persons . They are not
intended to be a substitute for adequate training and experience in safety
procedures for this type of equipment .
Read this
Instruction Sheet
NOTICE
Thoroughly and carefully read this instruction sheet and all materials included in
the product’s instruction handbook before installing or operating your Alduti-Rupter
Switch . Familiarize yourself with the Safety Information and Safety Precautions on
pages 4 through 6 . The latest version of this publication is available online in PDF
format at
sandc.com/en/support/product-literature/ .
Retain this
Instruction Sheet
This instruction sheet is a permanent part of your Alduti-Rupter Switch. Designate a
location where you can easily retrieve and refer to this publication.
Proper Application
WARNING
The equipment in this publication is only intended for a specific application . The
application must be within the ratings furnished for the equipment . Ratings and
other application information can be found in Specification Bulletin 761-31 .
In most applications, Alduti-Rupter Switches are capable of switching rated continuous
load currents at full voltage. The ratings for the particular switch are listed on nameplates
attached to the operating handle and the switch. See Figure 1 on page 3.
These interrupter switches are
not
intended for breaking fault currents.
Operating
Considerations
Circuit-making and circuit-breaking is involved in the normal operation of these
interrupter switches, and partial or precautionary opening or closing of the switch should
not be attempted. If the switch is covered in ice or snow, do not "chop" the switch between
the
Open
and
Closed
positions to dislodge the ice.
To operate the switch, swing the handle through its full stroke without hesitation. Do
not assume the operating handle position indicates the
Open
and
Closed
position of
the interrupter switch blades. After opening or closing the switch, always make a visual
check of the blade position to determine the switch blades are in the intended position.
Then, tag or padlock the operating handle in accordance with standard system operating
practices. In all cases, make sure the operating handle is locked before "walking away"
from the switch.
