What does a fuse blowing mean?
The expression “a blown fuse” is used to describe any unexpected electric occurrence that involves loss of power. The words “blown fuse” have numerous meanings, many of which have little to do with actual fuses. A proper fuse consists of a piece of metal in an encased wire that melts in case of overheating.
What does a blown fuse read?
If the reading is between 0 and 5 Ω (Ohms), the fuse is good. A higher reading indicates a bad or degraded fuse. A reading of OL (Over Limit) definitely means a blown fuse. If the fuse is blown, replace the fuse with one that is exactly the same (see panel).
What happens when a fuse opens?
Fuses are always connected in series with the component(s) to be protected from overcurrent, so that when the fuse blows (opens) it will open the entire circuit and stop current through the component(s). The most common device in use for overcurrent protection in high-current circuits today is the circuit breaker.
What does trip mean in electricity?
circuit breaker
When it is said that a circuit breaker “trips,” it means that circuit has detected what’s known as a fault condition and has shut itself off to prevent the wiring from overheating and potentially igniting itself.