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Why would four core armoured cable be used in a single phase circuit?
Wiki User
∙ 15y ago
Four core armoured cable would be used in a circuit carrying 240 Volts 60 Hz AC that is installed in a location where it could get damaged, such as underground or under water. The 4 cores in the armoured cable would be used as the following conductors for the 240 V 60 Hz circuit: * "Red" hot (120V above Neutral)
* "Black" Hot (120V below Neutral)
* "Neutral"
* "Ground" to protect the circuit, connected to the main incoming supply panel which feeds the circuit.
Wiki User
∙ 15y ago
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What is the difference between single phase circuit and tree phase circuit?
single phase have 2 wire treephase have 3, and 4 wires
Can you use 3 phase circuit as 3 separate single phase circuit?
yes we can use as a single phase circuit because at practise directly the 3-phase circuit is made by combining the three single phase circuits
When you clamp a single core cable carrying about 500A with an aluminum cable clamp do you have to take care of any effects due to Eddy currents and If so what can you do to minimise these effects.?
Assuming the single core cable forms part of a three phase circuit (i.e. you are clamping three single core cables) it is best to install the three cables close togther in what is called "trefoil" formation. This harmonises the Eddy currents of each phase.
Can you use a 2 pole breaker for a 120 volt single phase circuit?
A single phase circuit uses a 2 pole breaker if the circuit is 120/240 split phase and the load is connected 240. Both legs are hot, so both need to be protected. This is the normal US/Canada configuration.
Can a cut cable wire cause a fire?
If by 'cable wire' you mean Coax cable for the TV, or Internet, then the answer is no. The power/voltages in the cable are way to low to produce a spark which is usually what triggers flame. If by 'cable wire' you mean a cable carrying an electrical service such as 120V or 240V, then, if the cable is damaged by an accidental or deliberate cut which causes a short circuit from a hot phase wire or wires to other wires in the cable - such as to other hot phase wires in a 3-phase circuit, a neutral or a ground wire - then the resulting heavy current could result in the cable becoming very hot and could cause it to catch on fire unless there was some overcurrent protection device to prevent that from happening. That is why fuses and/or circuit breakers should always be included in any electrical service wiring to cut off the supply of current before a fire can be caused by such damage.
What is the difference between single phase circuit and tree phase circuit?
single phase have 2 wire treephase have 3, and 4 wires
Can you use 3 phase circuit as 3 separate single phase circuit?
yes we can use as a single phase circuit because at practise directly the 3-phase circuit is made by combining the three single phase circuits
Single phase and three phase circuit?
Yes, there is a difference between single phase and three phase circuits.
In a 240 volt single phase circuit A phase is 4000 watts B phase is 7000 watts what is the neutral load?
Question is incorrect. in a 240 Volt single phase circuit, how can you have A phase and B phase?
What is the voltage drop for a240 volt single phase circuit 320 feet long. what is cable size required?
Not enough information. To answer this question the amount of current in AMPS the circuit is drawing is needed.
How you convert the value of single phase power to value of 3 phase power?
Electric power is measured in watts. It does not matter if it is single phase or three phase. All things being equal, for the same load, the power measured in a single phase circuit or a three phase circuit, will be the same.
What is the effect of long armoured cable used for star delta starter for 3 phase ac motor?
voltage drop is be a problem.
What is single phasing preventor?
Single phasing preventor is an electronic circuit which prevents the Thee phase operated Electrical machines from single phase cut off, Phase reversal and phase imbalance.
When you clamp a single core cable carrying about 500A with an aluminum cable clamp do you have to take care of any effects due to Eddy currents and If so what can you do to minimise these effects.?
Assuming the single core cable forms part of a three phase circuit (i.e. you are clamping three single core cables) it is best to install the three cables close togther in what is called "trefoil" formation. This harmonises the Eddy currents of each phase.
Which cable is suitable for 12kW?
It depends on the voltage and on whether it's single-phase or three-phase.
How many wire or core in three phase electrical connection and single-phase electrical connection?
A single-phase cable will have a line and a neutral conductor and, possibly, but not necessarily, an earth (ground) conductor. A high-voltage three-phase cable will have three line conductors. A low-voltage three-phase cable is likely to have three line conductors and a neutral conductor.
What is a one gang switch what is a single phase circuit?
A one gang switch is like an ordinary switch box in your home. When there is more than one box, the electrical terminology used is ganging the boxes together. Two switches side by side in a single box is expressed as a two gang box. Three switches side by side in a single box is a three gang box. A single phase circuit is a circuit that gets is supply voltage from a single phase supply system. In North America the single phase supply voltages are 120/240 volts. A single phase circuit can also be supplied from any two legs of a three phase system. The most common voltages in North America from a three phase system are 120/208 volts.
