Reciprocal of temperature coefficient steel pipe material

Reciprocal of temperature coefficient of resistance at 0 °C of steel pipe material for pipe-type cables.

Symbol
$\beta_{sp}$
Unit
K
Formulas
$\frac{1}{\alpha_{sp}}-20$
Choices
MaterialValueReference
Al230.3IEC 60853-2
S202.0IEC 60853-2
SS980.0$1/α_{sp}$