What is the function of an electric fuse?
Name the material used for making fuse? In household circuit where is fuse connected?
Answers
Answer:
electronic fuse is a safety device used to save d electrical appliances. the fuse is placed in series with the device. ... the fuse wire is usually enclosed in a cartridge of porcelain or similar material with metal ends
i) Electric fuse is a device which acts as a circuit breaker and prevents electrical appliances from being damaged. It is generally composed two main parts; an alloy wire (typically tin and copper) which is thin and has a low melting point and aSafety
Overcurrent protective devices that have tripped are often reset without first investigating the cause of the fault. Electromechanical devices may not have the reserve capacity to open safely when a second or third fault occurs. When a fuse opens it is replaced with a new fuse, so the protection level is not degraded by previous faults. Our current limiting fuses meet the UL and NEC codes.
2Cost-effective
Fuses typically are the most cost-effective means of providing overcurrent protection. This is especially true where high fault currents exist or where small components such as Control Transformers or DC power supplies need protection.
3High interrupting rating
With most low voltage current limiting fuses (< 600 volts) having a 200,000 amp interrupting rating, you are not paying a high premium for a high interrupting capacity. Current limiting fuses from AutomationDirect meet the UL and NEC codes.
4Reliability
Fuses have no moving parts to wear out or become contaminated by dust or oil.
5North American standards
Tri-National Standards specify fuse performance and maximum allowable fuse Ip and I²t let-thru values. Peak let-thru current (Ip) and I²t are two measures of the degree of current limitation provided by a fuse.
6Component protection
The high current limiting action of a fuse minimizes or eliminates component damage.
7Extended protection
Devices with low interrupting ratings are often rendered obsolete by service upgrades or increases in available fault current. Updated NEC and UL standards are causing the need for potentially expensive system upgrades to non-fused systems.
8Selectivity
Fuses can be easily coordinated to provide selectivity under both overload and short-circuit conditions.
9Minimal maintenance
Fuses do not require periodic recalibration as do some electromechanical overcurrent protective devices.
10Long life
As a fuse ages, the speed of response will not slow down or change. A fuse’s ability to provide protection will not be adversely affected by the passing of time.n insulated outer casing of ceramic, fibre glass, plastic etc.
Answer: An electronic fuse is a safety device used to save d electrical appliances. the fuse is placed in series with the device. it is made up of an alloy with low melting point for eg. lead n tin.
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