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General product information, overhead conductors
 
Electrical values

Resistance

Product pages give for each overhead conductor type the maximum direct current (DC) resistance of the conductor at a temperature of 20 °C.

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 conductor. Solar radiation is 1000 W/m².
 
Higher ambient air temperature or solar radiation will decrease the current carrying capacity of the conductor.
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