GE Industrial Solutions EntelliGuard TU Conversion kits - Manual (Page 5)

5
SECTION 1 Prior To Installation
1. Before starting any work, turn off and lock out all power sources leading to the breaker, both
primary and secondary. Remove the breaker to a clean, well-lighted work area.
WARNING: Low-voltage power circuit
breakers use high-speed, stored-energy
spring operating mechanisms. The breakers
and their enclosures contain interlocks and
safety features intended to provide safe,
proper operating sequences. For maximum
personnel protection during installation,
operation, and maintenance of these
breakers, the following procedures must be
followed. Failure to follow these procedures
may result in personal injury or property
damage.
2. Only qualified persons, as defined in the National Electrical Code, who are familiar with the
installation and maintenance of low-voltage power circuit breakers and switchgear assem-
blies, should perform any work on these breakers.
3. Completely read and understand all instructions before attempting any breaker installation,
operation, maintenance, or modification.
4. Turn off and lock out the power source feeding the breaker before attempting any installation,
maintenance, or modification. Follow all lock-out and tag-out rules of the National Electrical
Code and all other applicable codes.
5. Do not work on a closed breaker or a breaker with the closing springs charged. Trip the
breaker OPEN and be sure the stored-energy springs are discharged, thus eliminating the
possibility that the breaker may trip open or the closing springs discharge and cause injury.
6. Trip the breaker OPEN, then remove the breaker to a well-lighted work area before beginning
work.
7. Do not perform any maintenance that includes breaker charging, closing, tripping, or any
other function that could cause significant movement of a draw-out breaker while it is on the
draw-out extension rails.
8. Do not leave the breaker in an intermediate position in the switchgear compartment. Always
leave it in the CONNECTED, TEST, or DISCONNECTED position. Failure to do so could lead to
improper positioning of the breaker and flashback.