Preparation
Copyright © 2009-2010 Eaton Corporation. All Rights Reserved.
IPN 997-00012-53B December 2010
11
Batteries
The plastic cases of batteries installed in Eaton dc power system racks must have a flammability rating of
UL 94-V2 or better.
Flooded cell lead acid batteries must be installed in a battery room. Do not install flooded lead acid
batteries in an Eaton dc power system rack.
Flooded cell and VRLA lead acid batteries can emit explosive gases and must be installed with adequate
ventilation. Refer to the battery manufacturer or supplier for advice on minimum ventilation levels.
Do not wear a synthetic dust-coat or overalls. Synthetic fabrics can hold static electric charges that create
sparks during discharge.
Remove rings, wristwatch and other metal jewelry that might be exposed to battery terminals, before
installing batteries.
Batteries are powerful sources of energy and present a potential electrical shock and energy hazard. The
energy hazard is always present, even if the batteries are not connected. Avoid short circuiting terminals
of opposite polarity.
Always use insulated tools.
Do not place tools, loose cables or metal objects (such as interconnecting bars) on top of batteries.
Do not drop tools, loose cables or metal objects onto intercell connections or terminals of opposite
polarity.
Only terminate cables and interconnecting bars after confirming that the termination will not create a
short circuit.
Always tighten battery terminal bolts according to the battery manufacturer’s specification. Failing to do
so can cause erratic battery performance, possible damage to the battery, and/or personal injury.
There is a risk of electric shock if a battery is replaced by an incorrect type.
Dispose of batteries according to the instructions on page
Rectifiers
Do not install the rectifiers until the room has been cleaned and is dust free.
To reduce the risk of electric shock and maintain optimum system cooling, always cover empty rectifier
slots with blanking panels.
To avoid electrical shock, do not place hands inside the rectifier magazine.
Rectifier cases may exceed 100ºC (212ºF), especially after prolonged operation. Use suitable gloves when
removing a rectifier from the magazine.
Do not attempt to disassemble faulty rectifiers. Return them (in their original packaging) with a
completed Equipment Incident Report on page
Servicing and Maintenance
The APS contains hazardous voltages and hazardous energy levels. Before undertaking any maintenance
task refer to the Warnings on page
If a maintenance task must be performed on a "live" system then take all necessary precautions to avoid
short-circuits or disconnection of the load equipment, and follow any "live-working" instructions
applicable to the site.
Only perform the maintenance tasks described in the Maintenance chapter. All other tasks are classified
as Servicing. Servicing must only be performed according to specific instructions and only by personnel
authorized by Eaton. This includes disassembly and/or servicing of any modules.
For further information on Servicing contact your local Eaton dc product supplier, or refer to the contact
details on page
