Detailed Product Description

Orange circular cable description:

The continuous current rating of a cable is determined by the ability of the cable to dissipate the heat generated by the current passing through its conductor. It depends on a number of parameters, but the most important are the:

• Conductors DC resistance;
• Thermal resistance of the insulating sheathing materials; and
• Ambient conditions of the environment where the cable is installed (for example the surrounding air temperature).

For standard cables such as PVC building wire, XLPE SDI or circular cables (all rated 0.6/1kV), the ratings have all been calculated and are tabulated in Australian Standard AS/NZS 3008.1.1. This standard includes various circuit configurations such as single and three phase and various installation arrangement such as in air, direct buried in ground, in ducts, etc.