Line C Electrical Circuit Faults Flashcards
What, commonly, can cause a power surge?
A Lightning Strike, High power draws, Tripped breakers
What is the definition of insufficient voltage?
The decrease of electrical power to 90% of normal for 1 minute or more
What is the most common cause of insufficient voltage?
An overloaded system
What is a short circuit?
A low resistance connection between two conductors supplying electrical power to any circuit
What could cause a short circuit?
Damaged insulation, a loose wire, faulty appliance wiring
What device is used to break the circuit when it detects and electric arc in the circuit?
An Arc Fault Circuit Interrupter (AFCI)
What could be a reason for a fuse to blow?
An overloaded circuit, a short circuit, a ground fault, an arc fault
What could be a consequence of corrosion on our electrical connection?
- Loss of material leading to loss of function
- Introduction of additional resistance leading to added heat and eventual failure
Which type of wire is the least resistant to corrosion?
Aluminum
What is the consequence of switching the neutral wire instead of the hot wire on an appliance disconnect switch?
The appliance will always be live, even when the switch is open. Leading to a risk of electrical shock for the technician
