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there are various parameters to be cosidered in the design of the wire size such as voltage, current ratings, length of circuit, whether circuit is balanced or unbalanced, conductivity of the material used for the wire etc.
There are different formulae for different conditions. if you want, i can give you.
What else can I help you with?
What size breaker do you need for 9000W at 440V 3phase?
This formula will give you the amperage I = kw x 1000/1.73 x E x pf (pf = power factor). Take the amperage and multiply it by 125%. This will give you the breaker size that you need.
Can you run 2 neutral wires together?
It's not clear what exactly you mean. You can run two neutrals next to each other as long as you otherwise abide by electrical codes regarding the limits of conductors in an enclosure and gauge size. You can also use a single neutral return for two circuits if those two circuits are opposite phase, since the net result will be that the neutral never carries more than a single circuit load and may sometimes carry less or even nothing if both circuits are in use.
What size service do you need for 2 fifty AMP circuits?
Either #3 Copper or #2/0 Aluminum.
What size wire is needed for a 150 foot 350amp 208V 3phase circuit?
A 500 MCM copper conductor will limit the voltage drop to 3% or less when supplying 350 amps for 150 feet on a 208 volt system.
What is the standard for marking electrical wires?
The guage or size and the type of insulation.
What determines the electrical capacity for a lead acid battery?
The size of the battery plates and amount of electrolyte.
Why are there different sizes of fuses?
Different sizes of fuses are designed to accommodate varying electrical loads and protect circuits from overloads and short circuits. The size of a fuse determines its current rating, which indicates the maximum current it can handle before blowing. Using the appropriate fuse size ensures that it will interrupt the electrical flow when necessary, safeguarding equipment and preventing potential fire hazards. Additionally, specific applications may require different fuse sizes based on voltage ratings and physical space constraints.
What size of wire use for 3kw motor 380volts 3phase?
How to calculate a cable size of 3kw motor
What is the cable size for 1.5KW 3 phase induction motor?
Sir, what is the cable size for 1.5kw 3phase induction motor 400v?
What determines the size of service entrance equipment and number of branch circuits used in a residential home?
Electricians use a service entrance calculation to figure what size entrance to use. There are computer generated programs that you input all the information on the home such as rooms and sizes then it will give you the size, then this is checked against the local codes officer to make sure they agree with the service. The old fashioned way can be done but the program is faster. So all the rooms, and sizes and equipment that are in a home determine what size is to be used. Although computer programs may be faster, you would still be required to know how to do these calculations yourself on a licensing exam. Load calculations are based on the square footage of a building and type of occupancy, plus special loads added to that. You must follow the current version of the National Electrical Code: Article 220 Branch Circuit, Feeder, and Service Calculations. Article 210 Branch Circuits give requirements for the number of branch circuits.
What article in the NEC states the minimum size conductor for industrial branch circuits?
The minimum size conductor for industrial branch circuits is typically addressed in Article 210.19(A) of the National Electrical Code (NEC), which provides guidance on conductor sizing for branch circuits. It's important to refer to the specific version of the NEC that is currently adopted in your location, as code requirements may vary.
What information can I find in the 80 amp wire size chart?
In the 80 amp wire size chart, you can find information about the appropriate wire size to use for electrical circuits that require a maximum current of 80 amps. This chart will help you determine the correct wire gauge to ensure safety and efficiency in your electrical installations.
What determines the size of frictional force?
The size of the normal force and coefficient of friction determines the size of frictional force.
What limits the current that flows through a circuit for a particular appllied DC voltage?
The voltage applied and the resistance across it.
What determines the size of a minerals crystals?
The rate at which magma cools determines the size of the mineral crystal.
What size cable and breaker would be required for a 3phase 6.2kw 50hz fan 11Amps with a 20metre cable run?
4sqmm
Why do breakers trip and how can this be prevented?
Breakers trip when there is an overload of electrical current flowing through them, causing them to shut off to prevent overheating and potential fires. This can be prevented by avoiding overloading circuits, using the correct size breakers for the electrical load, and regularly checking and maintaining the electrical system.
