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Electrical Conductors
The inductance, L , per core of a 3-core cable or of three single-core cables comprises two parts namely the self-inductance of the conductor and the mutual inductance with other cores. The fo…
The tables below indicate the electrical and physical properties of metals commonly used in the manufacture of electric cables in the electrical industry. Familiarity with these properties is requi…
A coaxial cable consists of four basic parts: Inner conductor (center conductor) Outer conductor (shield) Dielectric, which separates the inner and outer conductors Jacket, which is the outer …
For the purpose of calculating voltage drop within a cable, the table below gives the reactance and resistance values for Copper and Aluminium cables: Values for Copper Cables …
Often times in the application of electrical cables, we neglect the thermal characteristics of the polymers used in the cable insulation. Here is a list of the temperature range each of the common…
As already discussed in Ampacity of a Conductor , the ampacity of a conductor depends on temperature. Any change in ambient temperature affects the ampacity of an electrical cable. When this happen…
To calculate the nominal diameter of any concentric-lay-stranded conductor made from round wires of uniform diameters, multiply the diameter of an individual wire by the applicable factors listed b…
The DC resistance of copper wire increases with increasing temperature in accordance with the formula: On the basis of the above formula, we now generate a table of correction factors for copper…