home
pricing
cable engineering
<div class="btgrid"> <div class="row row-1"> <div class="col col-md-4"> <div class="content"> <p><img alt="" class="img img-responsive" src="/Portals/0/Images/Icons/cable_1.png" title="" /></p> </div> </div> <div class="col col-md-8"> <div class="content"> <p>Use the links on the left to access our cable sizing application.  Manage and size all your cables, from low voltage to 33 kV.</p> </div> </div> </div> </div>
knowledge base
developers
support
- faq & tickets
- contact us

Export Print

Elctrical Resistivities & Temperature Coefficients

The following table is taken from IEC 60287-1-1:2006 "

Material	Resistivity (ρ) Ω.m at 20 °C	Temperature Coeffiicent (α₂₀) K^-1 at 20 °C
- conductors
Copper	1.7241 10-8	3.93 10-3
Aluminium	2.8264 10-8	4.03 10-3
- Sheaths & Armour
Lead or lead alloy	21.4 10^-8	4.0 10^-3
Steel	13.8 10^-8	4.0 10^-3
Bronze	3.5 10^-8	3.0 10^-3
Staninless steel	70 10^-8	negligible
Aluminium	2.84 10^-8	4.03 10^-3

Comments