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Why copper and aluminum are used in electrical cables?
Because they have low electrical resistance, good enough mechanical properties and aren't too expensive.
Why energy is lost from power transmission cables?
Energy is lost from power transmission cables due to resistance in the materials used to make the cables. When electricity flows through the cables, some of the energy is converted to heat as it encounters resistance, causing a loss of efficiency in transmitting power over long distances.
What is meggers?
A megger is an electrical instrument that is used to measure the resistance of insulation by applying a DC voltage to the conductor. One lead is connected to the conductor and the other lead is connected to ground. Safe insulation reading to ground should be above 2,000,000 ohms or 2 megs.
How do you remove electrical cables without damaging existing cables?
How do you remove electrical cables without damaging existing cables?"
In electrical installation why do you need to ensure the cables are not twisted or plaited?
Because it would affect the Cross sectional area of the conductor therefore altering the resistance.
What form of energy does electrical cables?
Electric cables carry electrical energy in the form of electricity.
Is rubber a bad insulator?
Rubber is actually a good insulator due to its high resistance to the flow of electricity. It is commonly used in electrical cords and cables to help prevent electrical shocks and short circuits.
Why. Are metals used for making electrical cables?
aluminium is used for making electrical cables as the metal do not melt easily
Why are electrical cables set to sag?
because of heat cables expand
What is a Continuity test on Electrical Cables?
Continuity of electrical cables must, because it is the process of inspection to found any discontinuity in the cable
What is xlpe resin?
XLPE (cross-linked polyethylene) resin is a type of thermosetting polymer used in the manufacturing of electrical cables. It offers high thermal and chemical resistance, excellent electrical properties, and low water absorption. XLPE resin is commonly used in medium to high voltage power cables for transmission and distribution of electricity.
Give you theory about electrical transmission without cables?
we can use the electromagnetic waves to transmit the electrical powers without the cables. But it is very difficult.
