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Fuses are cheap and reliable, one time use, however they are typically more sensitive than breakers, and depending on the type, can have better time-current characteristics than breakers. Breakers are safer for residential occupancies as there are no shock hazards, you simply flip the switch instead of removing a fuse and exposing live electrical parts. Breakers are re-usable, and are less sensitive to voltage spikes which means they are less prone to nuisance tripping. With fuses, if a fuse blows, the typical homeowner replaces it with anything that fits (many times not the proper fuse, creating a fire hazard). With breakers you simply flip the switch again.
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What fuses and circuit breakers provide protection in the event of?
Short circuit fault.
What devices are used to deliberately create an open circuit when the current exceeds a specific value?
fuses or circuit breakers
What do circuit breakers and fuses have in common?
Both fuses and circuit breakers cut off a circuit from its power supply when the total current through the circuit exceeds the current rating of the fuse or circuit breaker, usually due to a short to ground or overloading of the circuit. Both use materials that respond to heat.
What are two methods used in most circuit breakers to protect electrical circuits?
There is a heated bimetallic strip that provides a time delay small overload protection. When its contact makes, it energizes a coil to trip the breaker. Some breakers are mechanical, though. There is a coil that trips the breaker instantly on large overload.
Does the National Electrical Code allow fuses or circuit breakers to be installed in parallel?
Yes, but only factory assembled units listed as such.
What are the circuitrotectors?
Circuit protectors are fuses and circuit breakers.
Which of these are alternatives to fuses?
circuit breakers
Does a 1977 Harley fl have fuses?
No fuses, but it does have circuit breakers.
Circuit breakers are used for the same purposes as?
fuses
Are easier to use than?
circuit breakers ...fuses
What fuses and circuit breakers provide protection in the event of?
Short circuit fault.
How do fuses or circuit breakers help protect homes?
During an electrical fault, be it a short circuit or circuit overload, fuses and breakers are designed to open at a specific amperage. This opening of either device eliminates a fire hazard before it gets a chance to start. This is how fuses and breakers protect the home.
When did circuit breakers replace fuses in homes?
1950's
Is a circuit breaker an alternative fuses?
Circuit breakers do the same thing as fuses. They interrupt current flow when a certain preset point is reached. The difference between circuit breakers and fuses are that circuit breakers are resettable and reusable, whereas fuses are one time devices that must be replaced after they blow.
What are the main protective devices in a power system?
Circuit Breakers or fuses.
What protects circuits and their components?
Fuses, fuseable links and circuit breakers.
What protects against circuit failure?
Two examples of how to protect against circuit failure are fuses and circuit breakers.
