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Military

Section VI. Power Generation Sources

5-12. Batteries


Signal equipment can use two types of batteries:
  • Wet-Cell Batteries. These contain electrolytes and normally provide greater amperage than dry cell batteries for tasks like starting vehicles. They require special attention to maximize their life span.
  • Dry-Cell Batteries. These do not need water or acid. They can power smaller equipment such as radios, flashlights, and SB-22 switchboards. They can be ordered through the supply system and kept on-hand until needed. Dry cell batteries should be refrigerated to increase their life span and should be removed from equipment when not in use.

It is crucial to maintain an adequate supply of batteries for the unit. Use the following guidelines to develop an SOP--
  • Determine the unit's battery needs. Refer to the property book to find equipment that uses batteries. Look in the equipment training manuals to determine the type and number of batteries each item takes and how long the batteries will last.
  • Determine the unit's battery usage and needed stockage level. Use Supply Bulletin 11-6 to obtain battery stock numbers, compute their storage life, and handling/disposal requirements.
  • Ensure PLL's requisition required stock.
  • Make a chart to keep track of the information. Table 5-1 shows an example of the chart.

Table 5-1. Sample portion of unit battery stockage chart.

5-13. Commercial Power


This power is normally very reliable. However, in the event of power failure backup generators and vehicle DC power systems are vital alternatives. As a fail-safe measure, backup power cables should be run to the tactical generators.

5-14. Engine-Driven Generator Units


Tactical generators can produce either AC or DC. DC generators can have output capacities from 0.4 to 15.9 kilowatts. AC generators can have output capacities from 0.3 to 1000 kilowatts.

Table 5-2 gives the approximate fuel consumption rates of various generators. When operating at medium to high temperature (50ø to 100ø F), a generator will consume oil at one quart per eight hours of operation.

Table 5-2. Fuel consumption rates.

5-15. Generator Pre-Start Up Checklist


Use the following checklist when employing generators for power--
  • Are TMs and PMCS lists available?
  • Is the generator located on a flat surface, not more than 15ø from level?
  • Are brakes set and wheels blocked securely to prevent any movement of the trailer?
  • Are all exhaust pipes and air intake filters free of obstructions?
  • Is grounding rod driven at no less than a 45ø angle into the ground?
  • Are ground straps securely connected?
  • Does the engine have any loose or missing wiring?
    Any oil or fuel leaks? Are air and fuel filters clean?
  • How often is the oil changed or checked?
  • Have fuel containers been placed at least 50 feet from equipment and a fire point set up?
  • Are backup generators completely installed and ready for use?
  • Is the safety leg on the trailer being used?
  • Are drip pans present and being used?

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    Table of Contents
    Index



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