Fire Alarm Battery Load Voltage Test

Load voltage test semiannually verify the battery performs under load in accordance with the battery manufacturers specifications.

Fire alarm battery load voltage test.

Common myths and misconceptions. 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. Now as we stated above you need to place the multi meter test leads in series with the circuit being read. 3 3 30 3 battery load test.

Sig tms 3 3 30 5 rechargeable battery. 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. 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. Verify the voltage level does not fall below the levels specified.

See 3 3 38 3 unit multi cell. 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. My questions for the sub are. Battery testing best practices.

Load testing can be by any means of an artificial load equal to the full fire alarm load connected to the battery. 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. 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. Debunking the myths common misconceptions about battery power supply testing.

Nfpa 72 electronic fire alarm control panel battery load test simplexgrinnell philadelphia duration. How to check battery voltage duration. 1 i don t have to test the batteries. The national fire alarm code recommends testing the battery s load voltage discharge and seal on semi annual and annual basis.