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What is a fuse with a higher than required rating used in an electrical circuit?
Wiki User
∙ 11y ago
A fuse with a higher than rated for a electrical circuit is used to handle spikes in the electricity delivered. Lets take a normal household wall socket. They are said rated at 120 Volt . They are in fact 115 V to 125 V a/c electricity @ 15 Amps.
Wiki User
∙ 11y ago
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How many watts does a light timer use?
The wattage rating of a timer is governed by the manufactures specification. As long as the light bulbs wattage rating is not higher than the timers rating, the timer will be alright to use in the circuit. The circuits load is what governs the wattage of the circuit.
What does single pole and double pole mean on a twenty four vault circuit?
i have required lightings amps rating, how many circuit ku how much amps mcb fixing?
Why are fuses used in the electrical circuits at home?
The fuse is supposed to be the weakest link in the circuit. The circuit is rated to handle a specific load current. The wire and insulation rating of the circuit is governed by this specific load. If this load malfunctions and the load current becomes higher that what is specified, the fuse is there to break the circuit. Never over fuse an electrical circuit with a larger amp rated fuse. <<>> for overcurrent protection nec art, 240
Can you connect an electrical shower into the same circuit as the tank immersion heater?
Would be best not to ... especially if both, when turned on, will exceed the amperage rating of the breaker to which they are connected.
Can all circuit breakers interrupt large fault currents?
All Circuit Breakers have a current rating and a FAULT current rating. The current rating refers to the current at which the circuit breaker is designed to 'break' the circuit and this is generally shown in Amperes (A). FAULT current rating is generally alot higher rating and is therefor shown in kilo Amperes (kA). This kA rating refers to the amount of current which a circuit breaker is designed to handle under fault conditions and can still maintain operation and 'break' contact. Most household circuit breakers are around 7.5 kA, so any fault over 7,500 Amperes could potentially damage the circuit breaker contacts to the point which it can not open the circuit. Larger fault ratings are found in larger applications such as MCC's on plants, minesites or power stations.
Why is it not okay to use a fuse with a higher amperage rating in an electrical circuit?
The fuse is supposed to be the weakest link in the circuit. The circuit is rated to handle a specific load current. The wire and insulation rating of the circuit is governed by this specific load. If this load malfunctions and the load current becomes higher that what is specified, the fuse is there to break the circuit. A fuse of a higher rating than what is called for will allow a higher current to flow through the circuit which could cause the insulation on the wire to melt, the wire to burn open or components in the circuit to become unusable. Never over fuse an electrical circuit with a larger amp rated fuse.
What reason for bulb blowing in an electrical circuit?
Too much current for the rating of the bulb.
What causes electrical overloads?
Electrical overloads are caused by the load amperage increasing above what it should normally be. On a motor load this could be a request for the motor to do more work than the motor is capable of, working outside of its HP rating. In a house circuit an overload is created by plugging more devices into the circuit than the circuit breaker can handle. Again the load current will be higher than the circuit will allow and the circuit will open by the tripping of the breaker.
Is the current in the circuit 80 percent of the fuse rating?
It should be, yes. Never higher.
On an electrical circuit why is a motor with a 7.6A rating only drawing 5.1A?
Possibly because it is not running at 100% capacity.
What effect can be experienced by placing a 15a fuse in a slot rated for 5a on an electrical circuit?
For a circuit that is operating normally, it will continue to operate normally. However, by replacing the correct fuse with one of a higher rating, you are removing the circuit's overcurrent protection and, in the event of a fault, the conductors and load may become damaged. Incidentally, the symbol for ampere is 'A', not 'a'.
How many watts does a light timer use?
The wattage rating of a timer is governed by the manufactures specification. As long as the light bulbs wattage rating is not higher than the timers rating, the timer will be alright to use in the circuit. The circuits load is what governs the wattage of the circuit.
What happens when there is to much current in a circuit?
If you are talking about the circuits load being to large for the circuits capacity, then the circuits over current or over load protection will come into effect. The fault will open the circuit, thereby isolating the load from the electrical supply source.
Will a circuit breaker give off less amperage?
A circuit breaker does not give off amperage. A circuit breaker allows a flow of current up to the rating of the breaker. Any current higher than that of the breaker's rating will open the breaker's contacts and stop the flow of current.
Is amperage rating and running amperage the same thing?
Usually the current rating for a circuit is higher than the current usually taken. This leaves a little margin for safety.
What is Selection procedure for motor protection circuit breaker?
The selection of overload protection for motors is taken from a table in the electrical code book. It is based on the full load current rating of the motor.
How do you make a Overloading Electrical Circuits?
An overload occurs when the load current is higher than the nominal current rating of the conductor supplying the load. Over time, this can cause the insulation to break down and cause a short-circuit to occur between conductors.
