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