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For electrical purposes the formula for calculating the circular-mil area of a circular wire is very simple. A = D squared, Area equals diameter of the cable or wire squared. This calculation is needed when pulling cables into a cable tray so as not to overfill the tray. Over filling a cable tray will build up a heat from the cables if proper ventilation between the cables is not maintained.
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How do you calculate the current capacity of a cable when the cable size is known?
The current-carrying capacity of a cable depends on a number of things in addition to its cross-sectional area; these include the type of conductor, number of cores, type of insulation, whether or not it is armoured, method of installation, etc. Accordingly, to determine its current-carrying capacity, you will need to refer to your national electrical code. For example, in the UK, BS 7671:2008 Requirements for Electrical Installations contains tables for all standard cable types, specifying current-carrying capacity, voltage drops, etc.
Apair of cable each 880m long has tto supply 100kw at 440volts to sub station calculate the cross sectional area of the cable so that the energy dissipated in them shall not exceed 5kwtake reistivity?
8.2mm
For 100kw which cable size is good and how to find out cable size?
100 kw is the power drawn by the load. to calculate the cable size you need to know the voltage. From that you can calculate the current. this decides the cable size. for example if the voltage is 400Volts then the current flowing in the circuit when the load is 100 KW will be 250 amps. (100,000/400). for 250 amps to flow with out causing excessive heating of the cable the cross sectional area of the copper cable should be 150 sq mm.for a round cross section the diameter will be roughly 15mm.
How do I calculate the exstension in a steel cable that is 8 metres long and has a 500kg weight on it. The Young's modulus of the steel is 210 GPa and the diameter is 7.2mm?
In order to calculate the extension of the cable we must first calculate the strain. Strain is related to Young's modulus using the following relation:E = σA / εAWhere:E = Young's ModulusσA = Axial StressεA = Axial StrainTherefore to calculate the strain, we must first calculate the axial stress in the cable:σA = Force / AreaThe cross sectional area (CSA) of the cable is equal to:CSA = (pi(d2))/4 = pi x r2CSA = pi(0.0036)2CSA = 4.0715x10-5 m2Axial Stress = (500 x 9.81) / 4.0715x10-5σA = 120471449.98 PaAxial Stress = 120.47144998 MPaStrain of cable (εA) = Axial Stress / Young's ModulusεA = 120.471x106 / 210x109εA = 5.736735713x10-4To calculate the extension of the cable:εA = Extension / Original LengthTherefore:Extension = εA x Original Length= 0.0045893885704 m≈ 4.6 mm of extension.
How do you calculate the exit pressure of a nozzle?
How to calculate the ratio of the inlet-to-exit area of the nozzle
How do you calculate injection pressure from product before injection molding?
By deviding the multification of line pressure and screw dia with the crosssectional area of hydralic cylinder piston.
How do you calculate the cross sectional area of cable?
Simply work out the area of a section of cable.........
How do you calculate the length of a cable if its diameter is 14 mm?
You don't. You can calculate iits radius and cross-sectional area but its diameter has insufficient information to calculate its length
How do you calculate the current capacity of a cable when the cable size is known?
The current-carrying capacity of a cable depends on a number of things in addition to its cross-sectional area; these include the type of conductor, number of cores, type of insulation, whether or not it is armoured, method of installation, etc. Accordingly, to determine its current-carrying capacity, you will need to refer to your national electrical code. For example, in the UK, BS 7671:2008 Requirements for Electrical Installations contains tables for all standard cable types, specifying current-carrying capacity, voltage drops, etc.
How do you calculate the cross section area of electrical cable?
To calculate the cross sectional area (CSA) of a cable, you have to use a micrometer to verify its diameter, then divide the diameter by two to get the radius (r). With the radius we can calculate the CSA of the cable.CSA = pi x r2 (Applicable to solid wires only).For example:If a cable is 0.5 cm in diameter, its radius is 0.25 cm.CSA = 0.196349541 cm2You will need to decide to how many decimal places it is appropriate to quote your answer.
Apair of cable each 880m long has tto supply 100kw at 440volts to sub station calculate the cross sectional area of the cable so that the energy dissipated in them shall not exceed 5kwtake reistivity?
8.2mm
For 100kw which cable size is good and how to find out cable size?
100 kw is the power drawn by the load. to calculate the cable size you need to know the voltage. From that you can calculate the current. this decides the cable size. for example if the voltage is 400Volts then the current flowing in the circuit when the load is 100 KW will be 250 amps. (100,000/400). for 250 amps to flow with out causing excessive heating of the cable the cross sectional area of the copper cable should be 150 sq mm.for a round cross section the diameter will be roughly 15mm.
How do you calculate area how do you calculate the area of a diagram what is area?
length x width = area
What is the area of Touffreville-la-Cable?
The area of Touffreville-la-Cable is 3,970,000.0 square meters.
How to calculate percentage of natural lighting in a room?
Calculate the area of the room. Calculate the area of the window (or whatever opening) Room Area*100/Window Area
Where can I find a company that has digital cable in georgia?
You can get digital cable from Comcast cable in your area.
who our my local providers for cable tv in my area ?
wow cable
