Losses in Armoured Three Core Power Cables

Losses in three-core armoured power cables have historically been calculated using the formulas presented in the IEC Standard 60287-1-1. The formulas are based on semi empirical research on cables with smaller conductor cross sections and common sheath which is not representative of the design trend of today’s cables. For armoured three-core cables with greater insulation thickness and larger conductor cross sections than those used in the past, the accuracy of IEC 60287-1-1 is insufficient as the standard typically overestimates the cable losses resulting in over dimensioning of the cables and increased cost.