APC AP9924 - Manual (Page 5)

Wire Harness: Installation 3
Safety Information
When installing the Battery Management System:
• Cover the batteries with an insulating blanket before installing the
harnesses.
• Wear safety glasses, rubber gloves, and rubber boots.
• Use double-insulated tools.
• Do not short-circuit the battery terminals; a short circuit could cause
the batteries to explode.
• Do not lay tools or metal parts on top of the batteries or near the
cable lugs.
• Remove watches, rings, and other metal objects.
• Use only cables supplied by APC unless otherwise indicated.
• For the UPS and switch gear, use Lockout/Tagout safety procedures
(which remove access to a device and physically label the device as
intentionally out of service) before working on the batteries.
Electrical
Hazard
Risk of electric shock: battery cabinets contain
potentially lethal voltages! Batteries are energized even
when AC power has been disconnected.
Warning
Only qualified personnel, trained in battery operation
and safety, may install the harnesses. Keep unauthorized
personnel away from the batteries.