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The width of the cable tray is determined by the size of the cable to be installed into the duct system plus the total insulation needed to meet regulation 392.80(A)(2)(d) UL standards.

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โˆ™ 2013-05-23 00:06:53
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Q: How do you calculate size of the cable tray based on the sizes of the conductors?
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How can we calculate cable size for 800A breaker?

These cable sizes can be calculated by going to the table, Allowable ampacities for not more that 3 copper conductors in a raceway or cable, in an electrical code book.


How do we calculate the cable size for electrical installations?

Cable sizes for electrical installations are determined by the load current. The load current is obtained from the manufactures nameplate that is on the device to be connected. The electrical code book states what the amp capacity (ampacity) for specific wire sizes will be.


What are the examples of electrical wirings in the house?

Answer for countries in Europe and other world areas running a 50 Hz supply service.cable used mainly in houses is copper conductors. the cable sizes are...:lighting=1mm-1.5mmsockets-boiler controls=2.5mmcooker=6mmshower=10mm (can vary depending on the showers output)earthing conductor of 10mmearth bonding conductors of 6mm25mm tailings (you're supply cables from the meter)The sizes also depend on weather or not the cable is wired in old colours (i have only entered the new cable sizes)circuits used are...:ring main.radial=only used if there are limited sockets being installed on a circuit.lighting is just 1 cable going out and spreading to each light and switch (upstairs and downstairs lighting should be on a separate mcb)cooker-1 cable going out of mcb.shower-1 cable going out of mcb.I hope this information helps as i don't fully understand what you are wanting to know from you're question. If you need any more help please let me know, or anyone else for that matter.


How can mathematically calculate the thickness of wire when power and voltage is given?

Conductors are sized in terms of their cross-sectional area, not 'thickness'. Theoretically, if you divide the power by the voltage, you'll be able to calculate the current. You can then look up an appropriate csa conductor in wire tables. Unfortunately, in practise, it's not as simple as that because cable sizes depend also upon their methods of insulation, the method of installation, whether they are subject to thermal insulation, etc. All these other factors have to be taken into account, too.


How can you calculate the conductor size in single phase and three phase motor?

To calculate the wire sizes for the feeders for motors you have to know the motor's full load amperage which can be determined from the motor nameplate.

Related questions

How can we calculate cable size for 800A breaker?

These cable sizes can be calculated by going to the table, Allowable ampacities for not more that 3 copper conductors in a raceway or cable, in an electrical code book.


How many strands of copper wire are in a 500 MCM conductor?

Wire sizes from 250 to 500 MCM conductors all have 37 strands within the cable.


What is the size of cable for 5 tons ac with three phase supply?

Check the unit nameplate for Voltage and Amperage. That is what cable sizes are based on.


How do we calculate the cable size for electrical installations?

Cable sizes for electrical installations are determined by the load current. The load current is obtained from the manufactures nameplate that is on the device to be connected. The electrical code book states what the amp capacity (ampacity) for specific wire sizes will be.


What are the range of sizes of nonmetallic sheath cable?

It ranges in sizes from 14-2 to 6-3, then you get to a different classification: service cable, which I believe is not considered nm cable.


What is the Formula to know about of dc cable size in mm?

how to know dc cable sizes


How do you calculate size of Al conductor of 11KV line?

Generally cable sizing is taken with respective to voltage current length from source, nature of laying, ambient conditions etc. You said its conductor so it may be overhead conductors with no insulation. These lines are usually designed to carry max amps of 200. Sizes are 55sqmm AAAC or 35 ACSR


What is the sizes of cable for transmission lines?

336 776 and 795


What are the examples of electrical wirings in the house?

Answer for countries in Europe and other world areas running a 50 Hz supply service.cable used mainly in houses is copper conductors. the cable sizes are...:lighting=1mm-1.5mmsockets-boiler controls=2.5mmcooker=6mmshower=10mm (can vary depending on the showers output)earthing conductor of 10mmearth bonding conductors of 6mm25mm tailings (you're supply cables from the meter)The sizes also depend on weather or not the cable is wired in old colours (i have only entered the new cable sizes)circuits used are...:ring main.radial=only used if there are limited sockets being installed on a circuit.lighting is just 1 cable going out and spreading to each light and switch (upstairs and downstairs lighting should be on a separate mcb)cooker-1 cable going out of mcb.shower-1 cable going out of mcb.I hope this information helps as i don't fully understand what you are wanting to know from you're question. If you need any more help please let me know, or anyone else for that matter.


How is a grounded conductor in a flat multiconductor cable 4 or larger identified?

Although this method of identifying a grounded circuit conductor (may be a neutral) is acceptable for sizes larger than 6 AWG conductors in a raceway, it is not acceptable for multiwire cables.For sizes larger than 6 AWG installed in a raceway, this is what Item 3 of 200.6(B) allows: "At the time of installation, by a distinctive white or gray marking at its terminations. This marking shall encircle the conductor or insulation."This requirement appears in part (E) of 200.6: "Grounded Conductors of Multiwire Cables. The insulated grounded conductors of a multiconductor cable shall be identified by a continuous white or gray outer finish or by three continuous white stripes on other than green insulation along its entire length.Multiconductor flat cable 4 AWG or larger shall be permitted to employ an external ridge on the grounded conductor.


How is the grounded conductor in a flat multiconductor cable 4 or larger identified?

Although this method of identifying a grounded circuit conductor (may be a neutral) is acceptable for sizes larger than 6 AWG conductors in a raceway, it is not acceptable for multiwire cables.For sizes larger than 6 AWG installed in a raceway, this is what Item 3 of 200.6(B) allows: "At the time of installation, by a distinctive white or gray marking at its terminations. This marking shall encircle the conductor or insulation."This requirement appears in part (E) of 200.6: "Grounded Conductors of Multiwire Cables. The insulated grounded conductors of a multiconductor cable shall be identified by a continuous white or gray outer finish or by three continuous white stripes on other than green insulation along its entire length.Multiconductor flat cable 4 AWG or larger shall be permitted to employ an external ridge on the grounded conductor.


How can mathematically calculate the thickness of wire when power and voltage is given?

Conductors are sized in terms of their cross-sectional area, not 'thickness'. Theoretically, if you divide the power by the voltage, you'll be able to calculate the current. You can then look up an appropriate csa conductor in wire tables. Unfortunately, in practise, it's not as simple as that because cable sizes depend also upon their methods of insulation, the method of installation, whether they are subject to thermal insulation, etc. All these other factors have to be taken into account, too.

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