Lucent Technologies Lineage
®
2000 200A Ferroresonant Rectifier J85503B-2
4 - 2 Safety
Issue 8 January 1999
7. Be sure that the associated framework and cable rack are
properly grounded, per local job instructions, before
turning on any rectifier.
8. Battery voltage may still be present on one side of the CB1
circuit breaker when both the ac power and dc circuit
breaker are turned off.
9. Circuit modules must not be connected or disconnected
with voltages present. Personal injury or equipment
damage may occur.
10. Do not connect or disconnect circuit modules with
voltages present or equipment damage may occur.
11. AC voltages may be present when the rectifier Power
switch is off.
12. When servicing the rectifier, disconnect the ac service and
dc battery buses. Work carefully because you are working
with live cables at battery bus potentials and current
capabilities. The disconnected charge battery and charge
ground connectors must be taped adequately to prevent
them from contacting each other or any other metal
surface. Alternatively, the dc battery cables from the
rectifier can be disconnected at the plant charge battery
and charge ground buses.
13. DC capacitors may be charged even with power
disconnected from the rectifier. If filter capacitor fuses
have blown, capacitors will be charged. Always check all
of the dc capacitor terminals (observe polarity) with a
voltmeter before performing this procedure, and discharge
capacitors safely, if necessary. Wait at least 5 minutes after
shutting down ac and CB1 before working on capacitors or
associated buswork.
14. AC voltages up to 600 volts to ground, and dc voltages of
-48 volts with high current capacities, may be present in
the equipment. Follow the procedures in the order given to
minimize dangerous encounters with these voltages.
Exercise extreme caution when working near the battery
bus bars.
15. The wire must be UL recognized with minimum ratings of
80° C and 150 volts ac.
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Страница 18: ...Lucent Technologies Lineage 2000 200A Ferroresonant Rectifier J85503B 2 1 4 Introduction Issue 8 January 1999 ...
Страница 72: ...Lucent Technologies Lineage 2000 200A Ferroresonant Rectifier J85503B 2 5 22 Installation Issue 8 January 1999 ...