0
They protect the downstream components from spikes in the eletrical system.
CommentFuses and circuit breakers do not protect against 'spikes', which are near-instantaneous voltage increases. Fuses and circuit breakers are overcurrent protection devices, which protect appliances against excessive current due to overloads or short circuits. CommentFuses and circuit breakers are used to protect the wire feeder that supplies the load. A load could be connected to a circuit that would cause an increase of amperage above what the wire is rated for. If this condition happens the fuse or circuit breaker will open the load from the supply service.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is the function of circuit breakers and fuses?
Protection. They shut off the power to protect the equipment circuits, the main circuits and people.
What protects circuits and their components?
Fuses, fuseable links and circuit breakers.
Why are fuses and curcuit breakers used in household circuits?
Fuses and circuit breakers are used to protect the wiring and devices from overload and heating caused by short circuits, short circuits that, if unprotected, could cause major damage and/or fire due to excessive current.
Is a circuit breaker better than a glass fuse?
Each device has its own special use. Glass fuses can protect circuit at very low amperages. They are usually used to protect printed circuit boards and control panel circuits. Breakers protect circuits from short circuits and overloads. These devices are used in service distribution panels to protect the wires that feed the loads. Circuit breakers can be from 15 amps up into the thousands of amps.
What protects circuits from dangerously large currents?
resistors circuit breakers fuses
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.
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.
How do fuses and circuits breekers help to protect us?
Fuses and Circuit Breakers act as a control mechanism to the flow of current in electrical circuits. A fault can develop in an electrical appliance without us noticing and this is where circuit breakers and fuses help in automatically disconnecting the faulty appliance from the power source. Most electrical faults resulting excess heat generation which in turn cause fires. Electrical shock can also be prevented by special types f circuit breakers called Earth Leakage Circuit breakers (ELCB). These breakers operate whenever there is an earth leakage protecting humans.
What protects circuits from current overloads?
Electrical circuits are protected by: 1) Fuses 2) Circuit Breakers and/or 3) Fusable links
What protects against circuit failure?
Two examples of how to protect against circuit failure are fuses and circuit breakers.
How fuses and circuit breakers protect against electrocution and household fires?
Fuses and circuit breakers do not protect a person from electrocution. They are in the circuit to protect the feeder conductors from having over current applied to them. The only type of breaker that will protect you from getting a shock is a GFCI.The way that fuses and breakers stop household fires is by opening the fault current on the circuit before the fault temperature can rise high enough to ignite any surrounding combustible materials.
What types of overload protection for circuits in a single family dwelling?
Fuses, Circuit Breakers, GFCI (Ground Fault Circuit Interrupter), Surge Protector, etc.
