Electrical Fundamentals Flashcards
What are the primary effects of Electric shock?
- Shock
- Burns
- Unconsciousness
- Respiration Stops
- Reduction of Blood Circulation
- Death
What to consider when isolating Electric Shock victims?
- Safety to yourself
- Safety to the passengers
- Isolate power
- Tend to victim
What should your Safety Attitude be?
Obey all warning signs
What are the 4 Electrical Terminologies?
- Volts
- Ampere (Amps)
- Resistance
- Positive and Negative
What does Volts mean?
The unit of measurement for electrical potential
What are the 2 electrical current flows?
- Direct Current (DC)
- Alternating Current (AC)
What is a Switch called when it is closed?
On
What is a Switch called when it is opened?
Off
What Circuit Protection is built into all EMU electrical circuits?
Circuit Breakers
Can Circuit Breakers be used as Switches to switch circuits or equipment off?
No
Can Circuit Breakers be reset?
Not until a fault has been determined and it is considered safe to do so
What is Rheostatic/Electro Dynamic Braking?
Using traction motors as a generator to provide mechanical resistance onto the rotating axle of a motor car
An Electric Motor raises the Pantographs in which trains?
- X’Trapolis
- Siemens
