Nominal cross section (mm)&sup2 Copper conductors installed in air at 30&degC Copper conductors installed in air at 15&degC Single strands Double strands (A) 3or4 strands (A) Single strands Double strands (A) 3or4 strands (A) Trianqular (A) Flat (A) Trianqular (A) Flat (A) 16 – – 94 80 – – 117 100 25 – – 119