1B131006EN
Page 10
Effective 07/2017
SECTION 2: SAFE PRACTICES
2-1 RECOMMENDATIONS
Type VCP-W Vacuum Circuit Breaker Elements are
equipped with high speed, high energy operating
mechanisms. They are designed with several built-in
inter-locks and safety features to provide safe and proper
operating sequences.
WARNING
TO PROTECT THE PERSONNEL ASSOCIATED WITH
INSTALLATION, OPERATION, AND MAINTENANCE
OF THESE CIRCUIT BREAKER ELEMENTS, THE
FOLLOWING PRACTICES MUST BE FOLLOWED:
Only qualified persons, as defined in the local electrical
code, who are familiar with the installation and
maintenance of medium voltage circuits and
equipment, should be permitted to work on these
circuit breaker elements.
Read these instructions carefully before attempting
any installation, operation or maintenance of these
breakers.
Always remove the breakers from the enclosure
before performing any maintenance. Failure to do so
could result in electrical shock leading to death,
severe personal injury or property damage.
BE EXTREMELY CAREFUL while the circuit breaker
is on the extension rails. Use provided rail clamps to
firmly hold the circuit breaker on the extension rails
while performing such activities as charging, closing
and tripping. Carelessness could cause the circuit
breaker to fall from the rails resulting in personal injury
to those in the area.
Do not work on a closed breaker or a breaker with
closing springs charged. The closing spring should be
discharged and the main contacts open before working
on the breaker. Failure to do so could result in cutting
or crushing injuries.
Do not use a circuit breaker by itself as the sole means
of isolating a high voltage circuit. Remove the breaker
to the DISCONNECT position and follow good lockout
and tagging rules, as well as all applicable codes,
regulations and work rules.
Do not leave the breaker in an intermediate position in
the cell. Always have the breaker either in the TEST or
CONNECTED position. Failure to do so could result in a
flash over and possible death, personal injury or
property damage.
Always remove the maintenance tool from the breaker
after charging the closing springs.
Breakers are equipped with safety interlocks. Do not
defeat them. This may result in death, bodily injury or
equipment damage.
Содержание VCP-W
Страница 28: ...IB131006EN Page 22 Effective 07 2017 position Courtesy of NationalSwitchgear com...
Страница 39: ...IB131006EN Page 33 Effective 07 2017 Figure 5 3 Closing Cam and Trip Linkage Courtesy of NationalSwitchgear com...
Страница 40: ...IB131006EN Page 34 Effective 07 2017 Figure 5 4 charging schematic Courtesy of NationalSwitchgear com...
Страница 44: ...IB131006EN Page 38 Effective 07 2017 Figure 5 5A CONTINUED Courtesy of NationalSwitchgear com...
Страница 65: ...IB131006EN Page 59 Effective 07 2017 Courtesy of NationalSwitchgear com...
Страница 67: ...IB131006EN Page 61 Effective 07 2017 Courtesy of NationalSwitchgear com...