Basic calculation is:
no. of cores x cross-section of one core x 9,6 = copper weight in kg/km
e.g. copper weight for cable 4x2,5 = 4 x 2,5 x 9,6 = 96 kg/km
This is how cable manufacturers calculate the copper weight.
Pls notice that it's valid formula only for cables without screening/shielding. If you know cross-section of screening, you can add that to the formula.
In a HT cable there are 2 layers of semiconductor one on the conductor and second on the XLPE insulation. As we know semiconductor behaves as conductor when temperature rises. So when the HT cable is on load its conductor temperature rises due to this the semicon layer which is on conductor behaves like conductor and as a result overall cross section area is increased. now the second semicon layer which is over XLPE on temp rise behaves as conductor and used for dessipating heat out of conductor as the cable heat due to load.
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Bare cable is simply a conductor without a coating, sheating, or covering. It is just bare wire.
Voltage determines a cable's insulation thickness, not its conductor thickness (or, more accurately, its cross-sectional area). It's current that determines the csa of a conductor, not voltage.
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.
The correct answer is....80-conductor IDE ribbon cable.
2 conductor round cable 2 conductor twisted cable
Aluminium conductor is reinforced by steel because it can give the strenght required to support the weight of the cable without streching the aluminium, which is very ductile. It gives a specific type of high-capacity and high-strenght cable, typically used in overhead power lines.
The 80-conductor cable and the 40-conductor cable.
yes
Cable faults are normally categorised as (a) conductor-to-earth (ground) faults, (b) conductor-to-conductor faults, and (c) conductor-to-conductor-to earth (ground) faults. In addition to that, we can categorise them by whether they are 'high-resistance' or 'low-resistance' faults.
Coaxial cable, STP cable, UTP cable
If you know the size of the load to be served, multiply it by 125% ( times 1.25) and choose a conductor that is rated for that ampacity or higher.
In a HT cable there are 2 layers of semiconductor one on the conductor and second on the XLPE insulation. As we know semiconductor behaves as conductor when temperature rises. So when the HT cable is on load its conductor temperature rises due to this the semicon layer which is on conductor behaves like conductor and as a result overall cross section area is increased. now the second semicon layer which is over XLPE on temp rise behaves as conductor and used for dessipating heat out of conductor as the cable heat due to load.
80 conductor IDE cable; 40 conductor IDE cable
Master.
The metal which was used in the cable which was inside the insulator. Normally copper is used.