Electrical values
Resistance
Product pages give for each cable type the maximum direct current (DC) resistance of the
conductors at a temperature of 20 °C and the alternating current (AC) resistance at the operating
temperature.
Current carrying capacity
Each product page contains information about current carrying capacities in given
conditions.
The basic assumptions of current carrying capacities are given in the following sections. If
the conditions differ from the assumed premises, the load current values shall be calculated with
professional software.
Conductor temperature
The current carrying capacities have been calculated in continuous operation at the maximum
permissible temperature of the conductor.
Surroundings
The ambient air temperature is 20 °C.
Wind velocity is 0.6 m/s and the direction of the wind is perpendicular to the cable. Solar
radiation is 1000 W/m².
Higher ambient air temperature or solar radiation will decrease the current
carrying capacity of the cable.
