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EVEREST PVC Insulated LT Cables are as per IS:694:1990 and are suitable for Fixed Wiring & Flexible Operation. These cables are suitable for use on AC Single phase or Three phase [Earthed or Unearthed] systems for rated voltage upto and including 1100 Volts. These cables may be used on D.C. systems for rated voltage upto and including 1500 Volts earth.CONDUCTOR:
The most acceptable metals for conductor are copper and aluminium due to their high conductivity. Generally, Copper conductor is used. Conductors are drawn from electrolytic grade copper to ensure compliance with International Standards. The most economical construction for condutor is solid conductor. As area of conductor increases, solid conductor becomes more stiff and hence difficult to handle. In this connection, Stranded Construction is adopted ie .made of strands, arranged in spiral layers in 1+6+12+18+24+ formations.
In case of flexible cable, number of fine copper strands are bunched in one direction on bunching machines in circular construction to give concentric shape. In case of bigger size flexible conductor, number of such bunched conductors are stranded in rope construction to form the conductor. The construction of conductor is as per IS: 694:1990, as they must comply with IS:8130:1984 which is specification for conductors for Electric Cable from Bureau of Indian Standards.
As per the international practice, which is also adopted by ISI, the size of the conductor is decided by its resistance only The construction of the conductor mentioned in the tables only for guidance and is as per market convention, it may very within the prescribed limits of IS:8130:1984.INSULATION:
The PVC covering over the conductor is called a "Insulation" and is provided by extrusion process only. the insulating conductor is called core in multi core cables. The insulation process is carried out of modern high speed extrusion lines with high accuracy, ensuring consistence in performance. The cores are coded for identification as per National/International practice. PVC used as insulator, which is specially formulated has good dielectric and physical properties.The main characteristics of our PVC Compound are as follows:
- High dielectric strength.
- Permanence : Physical&Electrical properties will not deteriorate even under Severe ageing conditions.
- High Insulating Resistance Properties.
- Thermal Compatibility & High Mechanical Strength.
- Resistance to moisture, Oils, Chemicals, Acids, Alkalies, Greese, Abraxtion & Ozone etc. Fire Retarding.
- Permanent Colours.