Table of Contents
- 1 What will happen if a thick copper wire is used as a fuse give reason in support of your answer?
- 2 Which wire is used as fuse wire?
- 3 Is copper good conductor of electricity?
- 4 What is the purpose of the tin coating on copper fuse wire?
- 5 Why copper is used in fuse?
- 6 Which wire is used for safety purpose?
- 7 What happens when you use copper wire for a fuse?
- 8 Why does a fuse need a low melting point?
What will happen if a thick copper wire is used as a fuse give reason in support of your answer?
But, the melting point of the copper is very high and that’s why it can tolerate high amount of electricity flow. So,if we use copper wire as the fuse wire,the excessive flow of electricity will easily enter the main circuit and the basic reason to install a fuse will become invalid.
What metal should be used as fuse wire?
Tin, Lead, Silver, Zinc etc. metals are used as fuse wire.
Which wire is used as fuse wire?
Which material is generally used in a fuse wire? Answer: An alloy of lead and tin is used in the fused wire as it has a low melting point and a very high resistance.
What is fuse wire why is it used?
Hint: In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Fuse wire is used to break the circuit when the load is high so that higher currents do not damage the appliances.
Is copper good conductor of electricity?
When properly installed, it is the safest and most efficient metal to produce electricity. Copper is commonly used as an effective conductor in household appliances and in electrical equipment in general. Because of its low cost, most wires are copper-plated.
What is a thick copper wire used for?
Thick copper strip is used for lightning conductors on tall buildings like church spires. The copper strip has to be thick so that it can carry a large current without melting. Locks, scrapyard cranes, electric bells.
What is the purpose of the tin coating on copper fuse wire?
The tin coating on the copper protects the wire from corrosion and premature cable failure. Benefits of Tinned Copper: Protects Against Corrosion. Extends the Life of the Cable.
Which of the following is not a material used for fuse wire?
An alloy of lead and tin is used for small current rating fuses. For current exceeding 15 A this alloy is not used as the diameters of the wire will be larger and after fusing the metal released will be excessive.
Why copper is used in fuse?
Copper has a higher melting point than the tin used in fuse wire. So, when a high level of current runs through copper wire, it continues to heat but will not melt.
What can be used instead of a fuse?
circuit breaker
A circuit breaker can be used and an ON/OFF switch. A blown fuse can be easily replaced with the wrong size, or even jerry-rigged (using a wire or small copper bar to replace the fuse) creating a safety issue.
Which wire is used for safety purpose?
Safety wire is available in a variety of gauges and materials, depending on the application. In aircraft and racing applications, stainless steel wire is used, such as in 0.032 in (0.81 mm) diameter.
Why fuse is considered as safety device?
A fuse is an electrical safety device that has the capability to protect an electric circuit from excessive electric current. It is designed to allow current through the circuit, but in the event that the current exceeds some maximum value it will open, severing the circuit.
What happens when you use copper wire for a fuse?
Copper has a higher melting point than the tin used in fuse wire. So, when a high level of current runs through copper wire, it continues to heat but will not melt. Instead, it causes a short circuit – potentially ruining your appliance and sparking a fire.
Can a wire be replaced with a fuse?
Aside from the physical limitations, a wire is sort of functionally replaceable by a fuse. Of course fuses are physically short and wires can be arbitrarily long. If you have to replace a short piece of wire, putting in a fuse both gives you conductivity and protection to overcurrents (as long as the fuse is properly rated)
Why does a fuse need a low melting point?
Fuse is a piece of wire of a material with a very low melting point. When a high current flows through the circuit due to Overloading or a Short circuit, the wires gets heated and melts. As a result, the circuit is broken and current stops flowing.
What causes the melting point of copper wire?
If the wire is not pure copper, melting point may be higher also. fuse element will not be heated much to cause any change for normal rated current. during short circuit condition the short circuit current will cause melting of copper wire faster and break the circuit.