Genvolt

Cable Terminology

Cable Terminology

To help your selection we have created a complete list of cable terminology for all of the high voltage cable that Genvolt supply.

Voltage The recommended maximum AC or DC voltage that may be continuously applied to a wire in conformance with its specifications. Some cables have been tested for operation above their rated voltage for a limited time period. For pulsed operation or insulating dielectric environments please contact us.Impedance (OHMS) The average characteristic or surge impedance of a coaxial cable is determined by the ratio of the outer diameter of the inner conductor and by the dielectric constant of the insulating material between the conductors. Capacitance The measurement of picofarads per metre, of the ability of a dielectric material to store electrical energy. Capacitance values for unshielded cables assume a uniform conductive surrounding. Conductor Size AWG American Wire Gauge. The standard for copper wire sizes, specifying the diameter. The smaller the AWG number the larger the wire diameter. Strands The first number signifies the number of wires in the conductor. The second number signifies the gauge size of the strand.

The letters following represent the type of plating on the copper conductor. TC –Tin Plated Copper, SPC –Silver Plated Copper, NPC –Nickel Plated Copper, BC –Bare Copper.Square mm The metric measurement of copper in the conductor.Diameter The outside diameter of the conductor in mm.Semicon A semi-conducting material that has a resistance characteristic between that of insulators and conductors. When bonded between two elements of a cable, the adjacent surfaces of the two elements will maintain equal potential, providing uniform voltage stress, thus reducing internal corona. Semicon is used for both the inner conductor shielding and between the dielectric insulation and metallic shield.Dielectric A non-conducting, insulating material with a dielectric constant, which is the ratio of capacitance of the material to the capacitance of air.Material Specifies the type of compound usedEPR: Ethylene propylene diene monomer rubberEPDM: Ethylene propylene diene monomer rubberHypalon: Chlorosulfonated polyethyleneLD: Low densityPVC: Polyvinyl chloridePE: PolyethyleneTPR: Thermoplastic rubber