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What size cable is needed to supply 415v 250 amp three phase fuseboard?
Wiki User
∙ 12y ago
A 250 MCM copper conductor with a insulation factor of 75 or 90 degrees C is rated at 255 and 265 amps respectively. This conductor can only be load to 80% capacity which allows a working current of 204 and 212 amps respectively. To obtain the full capacity of 250 amps a 350 MCM conductor will be needed. The amp rating for a 350 MCM conductor with an insulation factor of 90 degrees C is 325 amps. 325 x .8 = 260 amps.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoIt will come 25mm 4 core armoured cable
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What size cable required for3 phase 128 watt?
To answer this question a voltage is needed.
How do you calculate 3 phase load from single phase values?
If you have three adjacent houses each with a single-phase supply taken from different phases in a three-phase cable in the street, the total power is equal to the sum of the powers in each of the three phases.
What is the difference in single phase and dual phase?
single phase means that there is only 1 live core in the cable (+) . so dual phase means there are 2 live cores in the cable. this is used to supply different parts of a device where needed. although three phase cable sometimes used to boost power to 400 vFurther answerActually it's not correct to say "boost power to 400 v". Power is measured in watts, not volts, although I agree the voltage of three-phase, at least in the UK, is 400v (I don't know about the US - they have lower domestic volatges than the UK anyway)CommentIf, by 'dual phase', you actually mean 'two phase', then this electrical system is quite rare, and consists of two phase voltages displaced by 90 degrees, as opposed to a three-phase system in which the phase voltages are displaced by 120 degrees.
Can 3 phase be changed to single phase on the Hobart mixers?
You will need a phase converter. Avaliable at an industrial supply company like granger supply
How is a 380v 3-phase machine to a 208v simple phase outlet possible?
if you wound 3-phase on primary of transformer and secondary side we have to only one cable only such a way that it works as a step down transformer.AnswerYou cannot run a three-phase machine directly from a single-phase (which is what I assume you mean) supply. It won't start. The voltage difference is irrelevant.
How do you wire a 2 phase network cable?
More information needed - is it a network cable (ethernet) or a 2-phase power supply (unlikely) . .
Where are three phase transformer systems used?
Any where that a three phase supply distribution is needed to operate three phase equipment.
What type of electrical current is needed for a single family grinder pump?
single phase supply is needed
What size cable required for3 phase 128 watt?
To answer this question a voltage is needed.
You have three phase electric load of 29.3Kw what is thesuitable cable to feed this load if the distance between the supply and load is 270metres?
yes
What size swa cable is required to supply a door heater carrying 18.9Amps per phase?
Cable for 19 amps continuous should have a cross-section area of 6 mm2.
How many meters can you run single phase 240v to another house?
Like all supply cables, it all depends on the CSA of the cable
Why does the electricity of entire house goes dim after switching on a 1.5 ton AC that was recently installed?
if a 2 phase supply is there in ur house then it doent have the capacity to meet the requirement of an a.c..thats why 3 phase supply is needed for a.c
When would a three phase supply be preferred over a single phase supply?
Bcoz in single phase if supply is interrupt or any trouble there is no power .but in 3 phase if 1phase supply gone we can manage it by other 2 phases
What is the requirement of three phase to five phase transformation?
If you want a five-phase supply you need to start with a three-phase supply and a transformer that has 15 symmetrical cores. But why would one need a five-phase supply . . three is enough.
How do you start a three phase motor to a single phase power supply?
You don't. A three phase motor will not start unless it is connected to a three phase supply.
What size tech cable for 480 feet 100 amp?
This is a voltage drop to establish wire size question. For a correct answer to this question two values are needed. One value needed is the voltage and the other is whether it is three phase or a single phase installation.
