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Planning for AC Loads
975-0337-01-01
2–5
3. To find the running time for several loads running simultaneously,
add their total wattage and look for an appliance with similar power
requirement in Table 2-1.
Battery
condition
The information in Table 2-1 assumes:
•
there is a properly maintained 12 volt 400 amp-hour battery bank, for
example, 4 Group 31 (100Ah) deep-cycle truck batteries or 2 Group
4D batteries
•
the batteries have not been damaged by deep discharge and are
relatively new
Factors
affecting load
Consider these factors when you are calculating loads:
•
Loads that exceed 1000 watts may be run for a short time (about one
minute).
•
Loads which run continuously such as a reading light, TV or
computer should not exceed more than 1000 watts in total.
•
Poor battery condition, low battery capacity, low battery temperature,
and high ambient temperature will shorten the operating times listed
in the table.
•
The presence of DC loads will reduce the operating times of the AC
loads.
IP1012_AL.book Page 5 Tuesday, May 1, 2007 12:18 PM
Summary of Contents for IP1012 AL
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