Maksal Extruded Copper Products
Formaula for calculating mass
ROUND ROD
Diameter 2 in mm x 0.00701 = mass in kg/meter.
SQUARE BAR
Width across flat 2 in mm x 0.00889 = mass in kg/meter.
RECTANGULAR BAR
Width x Thickness in mm x 0.00889 = mass in kg/meter.
ROUND TUBE
(Diameter – Wall Thickness) x Wall Thickness x 0.028 = mass in kg/meter.
Formaula for calculating mass
I = Current in Amperes
A = Cross Sectional Area in mm2
p = perimeter of conductor in mm
Assume that the temperature rise of the conductor is 50°C above the ambient temperature of 40°C, and the resistivity of Copper at 20°C is 1.724 micro Ohm cm, then the current ratings are:
For Flat Bars
I = 7.73 x A0.5p0.39
For Hollow Round Bars
I = 8.63 x A0.5p0.36
For Solid Round Bars
I = 13.6 x A0.68
Hollow Round Bars (Bustube)
I = 8.63 x A0.5 x p0.36
Extruded Copper Product Range
Rectangular with Square Corners
Rectangular with Round Corners
Round
Rectangular with Round Sides
Square
Profiles
- The rectangular product range includes all popular busbar sizes in any of the common edge finishes.
Sizes range from a minimum of 10 x 3mm up to a width of 200mm. - Squares range from 6mm up to 101.6 mm and Round products range from 6mm up to 114.3 mm.
- Profiles are manufactured on request.
- Phosphor De-oxidised (PDO) anodes, plate & slugs are also manufactured for the electroplating industry.
- Earth tape product ranges are available in popular sizes.
Related Standards Designations
Copper busbar and rods for electrical purposes are covered by the following international Standards:
Maksal Extruded Copper Products
