5
0120037-J0 Rev. C
1.4 Electrical Safety
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. Do not rest tools on top of batteries.
WARNING!
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. Hazardous voltages are present at
the input of power systems. Ensure that the utility power is disconnected and locked out before performing
any installation or removal procedure.
•
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.
•
The enclosure which contains the DC or AC power system along with customer installed radios must remain
locked at all times, except when authorized service personnel are present.
•
Always assume electrical connections or conductors are live. Turn off all circuit breakers and double-check
with a voltmeter before performing installation or maintenance.
•
Place a warning label on the utility panel to warn emergency personnel that a reserve battery source is pres-
ent which will power the loads in a power outage condition or if the AC disconnect breaker is turned off.
•
At high ambient temperature conditions, the internal temperature can be hot so use caution when touching
the equipment.
WARNING!
The DC input to the modules (and the converter system) – though not dangerous in volt-
age – has a high short circuit current capacity that may cause severe burns and electri-
cal arcing.
The DC output is a potentially dangerous voltage. Do not touch the output connections
when under power. Ensure that power has been removed from the outputs before work
-
ing on them.
