9400000-J0 Rev E
6
1.4 Electrical Safety
WARNING!
WARNING!
WARNING!
• Before working with any live battery or power system, follow these precautions:
a. Remove all metallic jewelry, such as watches, rings, metal rimmed glasses, or necklaces.
b. Wear safety glasses with side shields at all times during the installation.
c. Use OSHA approved insulated hand tools.
Lethal voltages are present within the power system. Always assume that an electrical
connection or conductor is energized. Check the circuit with a voltmeter with respect to
the grounded portion of the enclosure (both AC and DC) before performing any installa-
tion or removal procedure.
• Do not work alone under hazardous conditions.
• A licensed electrician is required to install permanently wired equipment. Input voltages can range up to 240 Vac.
Ensure that the utility power is disconnected and locked out before performing any installation or removal proce-
dure.
• Ensure that no liquids or wet clothes come into contact with internal components.
• Hazardous electrically live parts inside this unit are energized from the batteries even when the AC input power is
disconnected.
1.5 Battery Safety
• Servicing and connection of batteries must be performed by, or under the direct supervision of, personnel knowl-
edgeable of batteries and the required safety precautions.
• Always wear eye protection, rubber gloves, and a protective vest when working near batteries. Remove all metal-
lic objects from your hands and neck.
• Use OSHA approved insulated hand tools. Do not rest tools on top of batteries.
• Batteries contain or emit chemicals known to cause cancer and birth defects or other reproductive harm. Battery
post terminals and related accessories contain lead and lead compounds. Wash your hands after handling bat-
teries.
Follow battery manufacturer’s safety recommendations when working around battery
systems. Do not smoke or introduce an open flame when batteries (especially vented
batteries) are charging. When charging, batteries vent hydrogen gas, which can ex-
plode.
• Batteries are hazardous to the environment and should be disposed at a recycling facility. Consult the battery
manufacturer for recommended local authorized recyclers.
Hazardous voltages are present at the input of power systems. The DC output from rec-
tifiers and batteries, though not dangerous in voltage, has a high short-circuit current
capacity that may cause severe burns and electrical arcing.
