2 S&C Instruction Sheet 681-530
Qualified Persons
WARNING
The equipment covered by this publication must be installed, operated, and
maintained by qualified persons who are knowledgeable in the installation, operation,
and mai nte nance of und erground electric power distributi on equipm ent, vault-mounted
switchgear, and switchgear installed in metal enclosures, along with all associated
hazards. 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.
• The principles of selective coordination and system protection.
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 S&C Instruction Handbook before installing or operating your S&C Vista
Overcurrent Control. Familiarize yourself with the Safety Information on pages 4 and
5 and the Safety Precautions on page 6.
Video
A video of this instruction sheet is available at www.sandc.com/videos/install-occ.
The video is supplementary to this instruction sheet and should in no way be considered
a replacement for the written instructions.
Retain this
Instruction Sheet
This instruction sheet is a permanent part of the S&C Vista Underground Distribution
Switchgear. Designate a location where you can easily retrieve and refer to this publication.
A copy of these instructions should be stored in the instruction manual holder, if present.
The latest version is available online in PDF format at sandc.com/en/support/
product-literature.
Proper Application
WARNING
The equipment in this publication is only intended for use with S&C Vista
Underground Distribution Switchgear. The switchgear must be installed according
to its applicable instruction sheet. The application must be within the ratings
furnished for the equipment. Ratings for the Vista Underground Distribution
Switchgear are listed on the ratings table in Specification Bulletin 681-31 for
Manual Vista Underground Distribution Switchgear, Specification Bulletin
682-31 for Remote Supervisory Vista Underground Distribution Switchgear,
and Specification Bulletin 683-31 for Source-Transfer Vista Underground
Distribution Switchgear. The ratings are also on the S&C Nameplate affixed to the
product.
Introduction
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