# Thermal conductivity of sheath material

The sources are:

• The values for copper and aluminium are form the standard IEC 60287-2-1 Ed.2.0, Figure 4, stating the thermal resistivity, which is the inverse of the thermal conductivity.
• Physical and mechanical properties for naturally hard copper alloys such as Bronze and Brass can be found in the electrical-contacts-wiki
• The other values are average values from various sources such as values at 20°C (or approximately) taken from engineeringtoolbox.com

Symbol
$k_{sh}$
Unit
W/(m.K)
Related
$\zeta_M$
Choices
MaterialValue
Cu370.37
Al208.33
Pb33.4
Brz118
S36.1
SS14.4
Zn116