Lucent Technologies ECS Minicell Battery Plant H569-420
Issue 5 February 1997
Safety 4 - 3
Warning
Statements
Explanation: This unit must be installed, serviced, and operated
only by skilled and qualified personnel who have the necessary
knowledge and practical experience with electrical equipment
and who understand the hazards that can arise when working on
this type of equipment.
The H569-420 battery plant is normally powered by multiple ac
inputs (possibly one per rectifier). Ensure that the appropriate
circuit protection device for each ac input being serviced is
disconnected before and during servicing the equipment.
Explanation: For situations where fuses are used with the
distribution panel and the loads are capacitive, arcing will occur
and sparks will exit from the back of the fuse holder. Sparks may
exit the front when the fuse disconnect head is inserted into the
fuse holder base while power is still applied to the circuit. Arcing
may be more severe at times due to the discharge state of any
downstream capacitors and the amount of charged capacitance
in parallel with the circuit. Therefore, follow all appropriate
safety precautions when inserting fuses.
•
Wear safety glasses.
•
Make sure other personnel are clear from the front and back
of the unit.
•
Do not stand directly in front of the holder when inserting.
•
Try to insert fuse disconnect head into the fuse holder base
quickly to reduce the amount of arcing.
WARNING
Hazardous voltage/energy inside. Risk of injury. This unit
must be accessed only by qualified personnel.
WARNING
Inserting fuses into live plant will cause arcing and sparks.
Risk of eye injury. Always wear safety glasses.
