The Company produces a range of armored and unarmored low-voltage power transmission cable. Low-voltage power cable, generally considered to be cable with a capacity of 1 to 3.3 kilovolts, is typically used to transmit electricity to and within commercial and residential buildings, as well as to outdoor installations such as street lights, traffic signals and other signs. Armored low-voltage power cable is usually used for public lighting and power transmission running to buildings and installed either above or below ground. Unarmored low-voltage cable is mainly used as lighting and power supply cable inside and outside of buildings. The voltage capacity of the Company's power cables range from 300 volts to one kilovolt.
Unarmored cable is composed of one or more cores of copper wire, insulated by substances such as PVC. Armored cable is produced in the same range of configurations as unarmored cable, but with the addition of an outer layer of galvanized steel or iron wires to protect the cable from damage.
Production of unarmored cable begins by drawing and annealing of copper rods. The drawn copper wires are then stranded or "bunched" into round or sector-shaped conductors in sizes ranging from 1.5 square millimeter to 1000 square millimeters. The copper conductors are then covered in an extrusion process with a plastic insulator such as a PVC, after which 2-5 conductors are twisted into a circular cable core in a cabling process and covered by a plastic outer cover.
Armored cable is produced in the same manner as unarmored cable, except that armored cable requires the addition of a helical wrap of galvanized steel or iron wires prior to the application of a final plastic outer cover.
