Sunday, May 23, 2010

CABLE CONSTRUCTION

4 – 3 CABLE CONSTRUCTION:

4 - 3 - 1 Conductor:
-plain copper or aluminum, stranded or solid, circular compacted or sector shaped, all in accordance with IEC 60228.
-no. of wires and wire diameter are adjusted to the specified resistance, so the specification allows the manufacturer to choose the no. and diameter of wires within limits to attain the required specified resistance.
-standard conductor sizes are:
0.5 0.75 1 1.5 2 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240 300 400 500 630 800 1000 1200 1400 1600 2000 2500mm².
Form 0.5 to 2.5mm², are circular compressed conductors.
Form 4 to 35mm², are circular and can be compacted.
Form 50 to 300mm² can either be circular or circular compacted or sector-shaped.
Form 400 to 2000mm², are circular compacted conductors
**sector shaped conductors, mainly used for low voltage cables.
**circular compacted conductors are used for MEDIUM and HIGH VOLTAGE cables.