1VAL050503-MB Rev B Replaces (1VAL057485-MB Rev. C) Oct 2013
5
INTRODUCTION & SAFE PRACTICES
INTRODUCTION:
The purpose of this manual is to provide instructions for unpacking, storage, installation, operation and maintenance for
the ADVAC™ vacuum circuit breakers. This manual should be carefully read and used as a guide during installation,
initial operation, and maintenance.
The specific ratings of each model circuit breaker are listed on the individual nameplates. The ADVAC™ breakers are
protective devices. As such, they are maximum rated devices. Therefore, they should not under any circumstances be
applied outside of their nameplate ratings.
SAFE PRACTICES:
ADVAC™ circuit breakers are equipped with high energy/high speed mechanisms. The design includes several
interlocks and safety features which help ensure safe and proper operating sequences. To ensure safety of personnel
associated with installation, operation and maintenance of these breakers, the following recommendations must be
followed:
Only qualified persons, as defined in the National Electric Safety Code, who are familiar with the installation and
maintenance of medium voltage circuits and equipment should be permitted to work on these breakers.
Read these instructions carefully before attempting any installation, operation or maintenance of these breakers.
DO NOT work on an energized breaker.
DO NOT work on a breaker unless all components are disconnected by means of a visible break and securely grounded.
DO NOT work on a breaker with power supplied to the secondary control circuit.
DO NOT defeat safety interlocks. This may result in bodily injury, death and/or equipment damage.
DO NOT work on a closed breaker.
DO NOT work on a breaker with a charged closing spring.
DO NOT use a circuit breaker by itself as the sole means of isolating a high voltage circuit.
DO NOT leave a breaker in an intermediate position in a cell. Always place the breaker in the disconnect, test or
connected position.
THE CIRCUIT BREAKERS DESCRIBED IN THIS BOOK ARE DESIGNED AND TESTED TO OPERATE WITHIN
THEIR NAMEPLATE RATINGS. OPERATION OUTSIDE OF THESE RATINGS MAY CAUSE EQUIPMENT TO
FAIL, RESULTING IN PROPERTY DAMAGE, BODILY INJURY AND/OR DEATH.
ALL SAFETY CODES, SAFETY STANDARDS AND/OR REGULATIONS AS THEY MAY BE APPLIED TO THIS
TYPE OF EQUIPMENT MUST BE ADHERED TO STRICTLY.
WARNING
NOTICE
FAILURE TO OBSERVE THE REQUIREMENTS OF OSHA STANDARD 1910.269 CAN CAUSE DEATH OR
SEVERE BURNS AND DISFIGUREMENT. THIS STANDARD SPECIFICALLY PROHIBITS THE WEARING OF
POLYESTER, ACETATE, NYLON, OR RAYON CLOTHING BY EMPLOYEES WORKING WITH EXPOSURE TO
ELECTRIC ARCS OR FLAMES.
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