Steve Jensen KE7GXC, Asst. Emergency Coordinator, Clackamas County, Oregon ARES

1
Station Wiring Considerations
Steve Jensen KE7GXC
2
Emergency Communications

• Station Wiring
• Batteries Power Sources
• Plug in power supplies (house current)
• What is practical ?
• What is safe ?

3
Fire Hazard computer monitor fire 2004
4
Fire Hazard Li-Ion batteries

• Flaming Dell in 2006

5
Manual connect disconnect
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Automatic connect disconnect
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Automatic connect disconnect
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Charging Batteries

• CARES recommended chargers
• Japlar-Schauer 12v 5 Amp Charger, Model
  JAC0512P, 80 s/h BatteryStuff.com

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Charging Batteries

• CARES recommended chargers
• Deltran Battery Tender 12v 1 Amp Charger,
  Model021-0156 (AGM), Model 021-128 (Gel)

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Charging Batteries

• CARES REQUIRED TEST EQUIPMENT
• Harbor Freight / Radio Shack inexpensive DVM
• Check your battery MONTHLY !

11
Wiring, Fusing and Isolation

• CARES recommended designs

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Wiring, Fusing and Isolation

• CARES recommended designs

13
More Information

• ARRL Handbook
• ARRL Emergency Power Handbook

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In closing

• Practical use of surplus batteries
• Practical charging equipment
• Questions.
• Steve Jensen KE7GXC_at_ARRL.NET