Learning Task 12 Flashcards
(12 cards)
What is the purpose of a fuse?
A fuse is designed to open the circuit if the current exceeds the rating of the fuse.
What are fuses made of?
Metal alloy
A general rule on fuses is the higher the voltage rating the ___ the fuse is?
Longer
Two types of cartridge fuses?
Knife blade fuse, ferrule type
Benefits of circuit breakers?
Do not have to be replaced every time there is an overcurrent or overload.
Benefits of circuit breakers?
Do not have to be replaced every time there is an overcurrent or overload.
What are typical breaker sizes up to 100A?
15, 20, 30, 40, 50, 60, 70 and 100
What is the most common type of circuit breaker?
The most common type is the moulded case breaker
After a breaker trips what must you do before turning it back on?
Turn it off before your turn it back on
After a breaker trips what must you do before turning it back on?
Turn it off before your turn it back on
Trip elements are either ___ or ___ or both
Magnetic or thermal
Trip elements are either ___ or ___ or both
Magnetic or thermal
