GE Industrial Solutions PowerVac PV-VL 13.8-1000-0 and -1 - Manual (Page 5)

GEH 6468A - Power/Vac VL Breaker Page 5
These instructions do not purport to cover all details or variations in equipment nor to provide for every
possible contingency to be met in connection with installation, operation or maintenance. Should further
information be desired or should particular problems arise which are not covered sufficiently for the
purchaser's purposes, the matter should be referred to the Seller.
To the extent required, the products described herein meet applicable ANSI, IEEE and NEMA standards, but no
such assurance is given with respect to local codes and ordinances because they vary greatly.
POWER/VAC
®
VL
VACUUM CIRCUIT BREAKER
WITH ML-18VL MECHANISM
1. INTRODUCTION
1.1. SAFETY
IT IS IMPERATIVE THAT ALL PERSONNEL
ASSOCIATED WITH THIS EQUIPMENT READ
AND COMPLETELY UNDERSTAND THE
WARNINGS LOCATED THROUGHOUT THIS
INSTRUCTION BOOK. FAILURE TO DO SO
CAN RESULT IN DAMAGE TO PROPERTY,
PERSONAL INJURY OR DEATH.
Each user must maintain a safety program for the
protection of personnel, as well as other equipment,
from the potential hazards associated with
electrical equipment.
The following requirements are intended to
augment the user’s safety program but NOT
supplant the user’s responsibility for devising a
complete safety program. The following basic
industry practiced safety requirements are
applicable to all major electrical equipment such as
switchgear or switchboards. GE neither condones
nor assumes any responsibility for practices which
deviate from the following:
1. ALL CONDUCTORS MUST BE ASSUMED TO
BE ENERGIZED UNLESS THEIR POTENTIAL
HAS BEEN MEASURED AS GROUND AND
ADEQUATE CAPACITY GROUNDING AS-
SEMBLIES HAVE BEEN APPLIED TO PRE-
VENT ENERGIZING. Many accidents have
been caused by unplanned energization from
non-recognized back feeds, equipment
malfunc-tions, and from a wide variety of
sources.
2. It is strongly recommended that all equipment
be completely de-energized, verified to be
“dead”, then grounded with adequate capacity
grounding assemblies prior to any
maintenance. The rounding cable assemblies
must be able to withstand energizing fault
levels so that protective equipment may clear
the circuit safety. Additional discussion on this
concept is covered in Chapter 20 of ANSI/
NFPA 70B, Electrical Equipment Maintenance.
3. Although interlocks to reduce sone of the risks
are provided, the individual’s actions while
performing service of maintenance are
essential to prevent accidents. Each person’s
know-ledge; mental awareness; and planned
and executed actions often determine if an
accident will occur. The most important
method of avoiding accidents is for all
associated personnel to carefully apply a
thorough understanding of the specific
equipment from the viewpoints of its purpose,
its construction, its operation and the situations
which could be hazardous.
All personnel associated with installation, operation
and maintenance al electrical equipment, such as
power circuit breakers and other power handling
equipment, must be thoroughly instructed, with
periodic retraining, regarding equipment in general
as well as the particular model of equipment which
they are working.
Instruction books, actual devices and appropriate
safety and maintenance practices such as OSHA
publications, National Electric Safety Code (ANSI)
C2), National Electric Code, and National Fire
Protection Association (NFPA) 70B Electrical
Equipment Maintenance must be closely studied
and followed. During actual work, supervision
should audit practices to assure conformance.
It is strongly recommended that all equipment be
completely de-energized, verified to be “dead”,
then grounded with adequate capacity grounding
assemblies prior to any maintenance.
2. DESCRIPTION
The PowerVac ® VL vacuum circuit breaker is a
vertical lift, removable and interchangeable inter-
rupting element, for use in metal-clad switchgear to
provide protection and control of electrical
apparatus and power systems. The PowerVac
® VL
Type PV-VL circuit breaker with ML-18VL mechan-