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What is it called when too much current flows through a conductor?
When too much current flows through a conductor, it is called an overload. This can lead to overheating and may damage the conductor or the connected equipment if not addressed.
How do you calculate the main fuse for electrical wiring?
Fuse sizing is calculated by the size of the conductor. The conductor is calculated by the amperage to the load. The above answer is partially right, however in calculating fuse sizes for say a motor load of 10 hp on 208 volts 3 phase. The table in 430.250 list this motor as pulling 30.8 amps. Conductor size would be 30.8 times 1.25 or 38.5 amps. This value would lead you to wire table 310.15(B)(16) and a conductor size of number 8THWN. This conductor is listed for 50 ampacity, however due to the starting current of the motor. A fuse could be sized at 30.8 times 1.75 or 53.9 amps. The next standard size would be 60 amps. the fuse size is above what the conductor is rated for, but because of motor overload protection the conductor is protected. If breakers were used instead of fuses, a breaker would be sized at 30.8 times 2.5 or 77 amps or 80 amp next standard size.
Why fuse inserted in phase wire only?
The fuse is place in the live wire so that under fault conditions the supply is cut off but the equipment is still connected to the neutral wire. If both wires were fused, there would be a 50-50 chance of the one in the neutral going first, which could leave the equipment still connected to the live wire and thus a further potential danger.
Why should you never place a fuse in a neutral conductor?
In case of a fault (short) the device could still be energized even with the fuse blown. this means, a fuse in the neutral would never blow in a fault to ground, resulting in a very dangerous situation.
Predict whether a fuse will work successfully if it is connected in parallel with the device it is supposed to protect?
A fuse will not work successfully if it is connected in parallel with the device it is supposed to protect.First, it will blow because it has no resistance in series with it. Second, once it blows, the device still has power applied to it. Fuses must be wired in series.
Why is the fuse always connected in the beginning of the circuit?
A fuse is an over current protection device, and will operate wherever it is placed in a circuit. However, because it's important that it isolates the faulty circuit from the supply, it MUST be located in the line (NEVER the neutral) conductor at the point where the circuit is connected to the supply.The point is that the circuit will always be energised (and potentially dangerous) up to the point where the fuse is connected, even when the fuse has operated and no current can flow.
How are circuit breakers connected with the other elements in a circuit?
Both of these devices are safety devices used to open a faulted circuit and stop the current flow.
Why fuse will get burnt when phase and neutral get connected?
A fuse is an overcurrent protection device, which protects a circuit by melting in the event of either a sustained overload current, or a short-circuit current. A short-circuit current will occur when a line (not 'phase') conductor makes direct contact with a neutral (or earth) conductor.
Why the original radio stopped working but not the clock in the radio in a 1995 Astro?
Check the fuses first. The clock is always on and as such is connected to one fuse. The radio only comes on when the key is in acc or on and is connected to a different fuse.
What happens when fuse is given to neutral?
A fuse should always be inserted into the line conductor, never the neutral conductor. If a fuse has been inserted, inadvertently, into the neutral, an overload will still operate the fuse, but the line voltage will not be isolated from the circuit -thus presenting a shock hazard. Furthermore, it will not protect against an earth (ground) fault that occurs in the circuit.
What is exactly the function of Neutral link in an electrical circuit?
To protect a circuit, we use a fuse or circuit breaker. The fuse or circuit breaker must always be placed in the lineconductor, never in the neutral conductor. So, if we want to completely isolate a circuit from the supply, we must remove the fuse from the line conductor, and open the link in the neutral conductor. A 'link' is a non-fusible metal break point in the neutral.
What is it called when too much current flows through a conductor?
When too much current flows through a conductor, it is called an overload. This can lead to overheating and may damage the conductor or the connected equipment if not addressed.
How the fuse connected ina domestic current?
The fuse is connected in series - usually in the live connection.
Working principle of fuse?
The principle of a fuse is to have the flow to the conductor. This will give it the power.
What are the functions of each of the three wires in a 3 pronged plug?
One is connected to the line conductor (there is no 'positive' conductor in a.c. systems), and the others are connected to the neutral and protective (earth/ground) conductors. In simple terms, you can think of the line and neutral conductors as the 'supply' and 'return' conductors.In North America, the line conductor has a nominal potential of 120 V with respect to the neutral; in Europe, the line conductor has a nominal potential of 230 V with respect to the neutral.The protective (earth/ground) conductor provides a low-resistance path back to the distribution transformer, which will enable the circuit's protective device (fuse or circuit breaker), which is always connected in the supply's line conductor, to operate should the line conductor accidentally make contact with the appliance's metal enclosure. A broken neutral conductor will not cause current to drain to earth through the protective conductor; should this happen, the load will simply stop working.Some equipment does not require the earth or ground conductor to be connected. These devices have additional insulation to prevent users being exposed to the line voltage.ColorsIn North America, the line conductor is black, neutral is white and earth is green.In Europe, Live or line is brown, neutral is blue and earth is yellow and green.
What fuse is the OBD II connected to?
The cigarette lighter fuse
Where the fuse is connected in the circuit?
the fuse is placed in series with the device
