Fire Alarm Battery Load Voltage Test

The national fire alarm code recommends testing the battery s load voltage discharge and seal on semi annual and annual basis. Common myths and misconceptions. See 3 3 38 3 unit multi cell.

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Fire alarm battery load voltage test.

Now as we stated above you need to place the multi meter test leads in series with the circuit being read. Nfpa 72 2013 edition section 7 2 1 where documentation is required by the enforcing authority the following list shall represent the minimum documentation required for all fire alarm and emergency communication systems including new systems and additions or alternations to existing systems within this list you will find 7 battery calculations and 8 voltage drop calculations. If the battery fails the load test a second time or bounces back to less than 75 percent state of charge then replace the battery because it lacks the necessary cca capacity. Nfpa 72 electronic fire alarm control panel battery load test simplexgrinnell philadelphia duration.

1 i don t have to test the batteries. Sig tms 3 3 30 4 battery unit unit. Fire lite lite tips. 3 3 30 3 battery load test.

Load voltage test semiannually verify the battery performs under load in accordance with the battery manufacturers specifications. A controlled discharge of a battery at a specified rate for a given period of time until a final voltage is achieved in order to determine battery capacity. Debunking the myths common misconceptions about battery power supply testing. Sig tms 3 3 30 5 rechargeable battery.

My questions for the sub are. Battery testing best practices. If the battery bounces back to less than 75 percent state of charge 1 225 specific gravity or 12 45 vdc then recharge the battery and load test again. This pictures shows the fluke 117 multi meter with the positive test lead moved over to the amp port this is mandatory when checking a fire alarm circuit for current.

How to check battery voltage duration. Verify the voltage level does not fall below the levels specified. Load testing can be by any means of an artificial load equal to the full fire alarm load connected to the battery. Using a well designed accurate and reliable battery tester makes all the difference in knowing exactly how well the battery and your fire alarm system is working.