TB 92 - Voltage Tester Flashcards
(23 cards)
Department members shall not test voltages exceeding what voltage?
1000 volts
Many street light lighting systems are what voltage?
4800 volts
What battery does the voltage tester take?
(1) 9v battery
The voltage tester has an automatic voltage range of what?
1 to 999 volts
The voltage tester has a pulsating audible signal for voltages greater than how many volts?
500 volts
Battery life for the voltage tester is approximately how many tests until the “low battery” sign appears?
3000 tests
Voltage testers can also be found in the equipment room at each what?
Metro red line stations
The voltage tester may be used to test what types of voltage?
AC and DC
What is the model name of the voltage tester?
Ideal model 61-249
The voltage tester is an inventory item carried on what companies?
Truck companies
If the input voltage of the circuit to be tested is greater than what volt (AC/DC) the tester will automatically switch on?
4 volts
If voltage is less than 4 volts, press the 2 what together and press the “test” button?
Prods
The tester will automatically switch off within how many minutes after prod contact with an energized circuit?
1 minute
To conduct a manual test of the voltmeter, touch the metal ends of both prods together and press what button?
Test button
If the voltmeter is working properly the display window will indicate voltage remaining on battery, audio buzzer will sound and what will activate?
Red indicator light
To “freeze” the reading when tested is no longer connected to input voltage hold what button?
The “hold” button
A how many second audible signal will sound when the tester reads a stabilized voltage, this is when the hold button should be activated?
2.5 seconds
Anytime a member has any indication that the voltage to be tested is how many volts or more, goggles and gauntlet gloves (Or firefighting gloved) shall be worn?
600 volts or more
You should always test the voltmeter on what before use?
Known live circuit
To test a live circuit place the prods where?
1 on “hot” electrical equipment and 1 on “ground”
Any voltage over how many volts should be considered energized?
10 volts
For voltages 600 or more to be tested, goggles and what type of gloves shall be worn?
Rubber electrical gauntlet gloves with leather gloves
For voltage 600 or less, what shall be worn? (Rubber electrical gauntlet gloves maybe worn in place of this)
Firefighting gloves