4.1 Safety Precautions
•
Only qualified personnel should service the power supply.
•
Verify the voltage requirements of the equipment to be protected (load), the AC input voltage to the power supply
(line) and the output voltage of the system prior to installation.
• Equip the utility service panel with a properly rated circuit breaker for use with this power supply.
• When connecting the load, DO NOT exceed the output rating of the power supply.
• Always use proper lifting techniques whenever handling units, modules or batteries.
• The power supply contains more than one live circuit! Even though AC voltage is not present at the input, voltage
may still be present at the output.
•
The battery string, which provides backup power, contains dangerous voltages. Only qualified personnel should
inspect or replace batteries.
• In the event of a short-circuit, batteries present a risk of electrical shock and burns from high current. Observe
proper safety precautions.
•
Do not allow live battery wires to contact the enclosure chassis. Shorting battery wires can result in a fire or
possible explosion.
• This power supply has been investigated by regulatory authorities for use in various Alpha enclosures. If you are
using a non-Alpha enclosure, it is your responsibility to ensure your combination conforms to your local regulatory
requirements and the power supply remains within its environmental specifications.
4.0 Maintenance
4.2 Required Tools and Equipment
Prior to beginning maintenance, ensure that all required tools and equipment, including safety equipment, is available and
functional.
The following is a list of the minimum equipment required to maintain and troubleshoot the XM3 power supply system and
batteries:
• Digital voltmeter
• Socket wrenches, insulated
• Box end wrenches, insulated
•
Torque wrench calibrated in inch/lbs
• Rubber gloves
• Full face shield
• Safety glasses
• Plastic apron
• Portable eyewash
• Spill kit, including sodium bicarbonate solution
• Fire extinguisher
• True RMS Volt Meter with DC Amp Clamp
• Midtronics Conductance Meter
• Optional equipment, depending on the type of maintenance being performed, includes:
• Service power supply
• 100 amp momentary load test set
• System load bank (DC if to be performed at the battery and AC if to be performed by loading a power supply
output— contact your Alpha Representative for more information).
• No-Ox Corrosion Inhibitor
•
Paper towels and/or rags
100
017-882-B0-001 Rev. E (06/2018)
