Fire Alarm Battery Load Voltage Test

Debunking the myths common misconceptions about battery power supply testing.

Fire alarm battery load voltage test. Can ulc 536 04 canadian annual fire alarm inspection standard do s and don t s. Fire lite lite tips. My questions for the sub are. 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 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. 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. See 3 3 38 3 unit multi cell. How to check battery voltage duration.

Nfpa 72 electronic fire alarm control panel battery load test simplexgrinnell philadelphia duration. Load testing can be by any means of an artificial load equal to the full fire alarm load connected to the battery. Sig tms 3 3 30 4 battery unit unit. Verify the voltage level does not fall below the levels specified.

Load voltage test semiannually verify the battery performs under load in accordance with the battery manufacturers specifications. 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. 1 i don t have to test the batteries.

Sig tms 3 3 30 5 rechargeable battery. Common myths and misconceptions. 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. Now as we stated above you need to place the multi meter test leads in series with the circuit being read.