Electrical conductivity of steel reinforcing bar
Electrical conductivity of steel reinforcing bar
(OP)
I understand it's not a very important steel property. For stray current control requirements I need to electrically connect all rebar in the base slab and to provide continuously welded bars equivalent to 70mm^2 of cooper. Searched the web, have found electrical conductivities for all imaginable materials... except for reinforcing steel. Normally material conductivity is given as a percentage of cooper conductivity.
Greatly appreciate your help!
Yakpol
Greatly appreciate your help!
Yakpol






RE: Electrical conductivity of steel reinforcing bar
RE: Electrical conductivity of steel reinforcing bar
Dik
RE: Electrical conductivity of steel reinforcing bar
Thanks for the reference, I just have a hard time with units conversion.converting Surge Amperes Per Foot into S/m (Siemence per meter). For bar diameter 1.0" Surge = 8150 Amperes/ft. What is equivalent in S/m (Siemens/meter)? Shame I forgot electricity almost completely.
RE: Electrical conductivity of steel reinforcing bar
It seems you simply need the conductivity of steel to ensure you can deliver the same current than 70 mm2 of copper, to the purpose of selecting some section.
The conductivities in A/(mm^2·V/m) = m/(ohm·mm^2) are
Cu 56
Al 35
Fe 8.5
Steel Wire 6.7
RE: Electrical conductivity of steel reinforcing bar
m/(ohm·mm^2)
Pure Iron 10.22
Commercial Galvanized
Siemens-Martin 6.14
High Strenght 4.97
Extra High Strenght 4.77
Contact Rails 7.81 to 6.33
RE: Electrical conductivity of steel reinforcing bar
Yakpol