Egypt Engineering Consultant Electrical

Practice session

A low-voltage 3-phase, 400 V copper cable with XLPE insulation feeds a chiller with a full-load design current (Ib) of 180 A. The cable is installed in a surface-mounted conduit in an ambient temperature of 45°C (temperature correction factor k1 = 0.91) and is grouped with three other conduits touching on a wall (grouping correction factor k2 = 0.70). According to the Egyptian Electrical Code / IEC 60364-5-52, what is the minimum base tabulated cable current-carrying capacity (It) required?

Loading your practice session…