Bus bars
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Copper bus bars are used in a number of electrical applications, such as: in the production of switchboards, transformers, socket panels.
- Bus bars Properties
General Specifications
Copper flats' chemical, physical and mechanical properties, tolerances and/or limitations comply to variety of standards, as for example EN 13601, JIS H 3250/JIS H 3140, ASTM B 187. Their production is monitored throughout all stages with the application of management system certified by Lloyds Register as complying with the requirements of standards ISO 9001:2008.
Physical Properties of pure Copper
Density (g/cc) 8,96 Thermal Conductivity (W/cm oK) 4,01 Specific Heat (J/g oK) 0,38 Coefficient of linear thermal expansion / K-1 16,5E-6 Atomic Mass Average 63,546 Melting Point 1357,75 oK
1084,6 oC
1984,3 oFMechanical Properties
According to EN 13601
Alloy Temper Tensile Strength
(MPa)
Yield Strength
(MPa)
Elongation
(%)
Hardness
(HB)
Conductivity
(MS/m)
Cu-ETP D (Hard as drawn) - - - - 56 min H035 - - - 35 -65 58 min R200 200 min 120 max 25 min - 58 min H065 -
- - 65 -90 58 min R230 230 min 160 min - - 58 min R250 250 min 200 min 8 min - 58 min H085 - - - 85 -110 57 min R300 300 min 260 min 5 min - 57 min H100 - - - 100 min 57 min According to ASTM B 187
Alloy Temper Rod & Bar Strength
(mm)
Elongation
(%)
Hardness
(HV)
Conductivity
(MS/m)
Cu-ETP O60 All sizes 25 min 57 max 58 min H04
For rod: Up to 10 incl.
12 min - 56 min Over 10 to 25 incl. 12 min 89 min 56 min Over 25 to 50 incl. 15 min 83 min 56 min Over 50 to 75 incl. 15 min 71 min 57 min Over 75 15 min - - For bar: Up to 10 incl. thickness and up to 110 incl. in width
10 min 89 min 56 min All other sizes 15 min 71 min 57 min According to JIS H 3250
Alloy Temper Rod & Bar Strength
(mm)
Tensile Strength
(MPa)
Elongation
(%)
Conductivity
(MS/m)
Cu-ETP O 6 or over up to and incl. 10 195 min 30 min 58 min ½ H 6 or over up to and incl. 25 245 min 15 min 57 min over 25 up to and incl. 50 225 min 20 min 57 min over 50 up to and incl. 75 215 min 25 min 57 min H 6 or over up to and incl. 25 275 min - 56 min According to JIS H 3140
Alloy Temper Rod & Bar Strength
(mm)
Tensile Strength
(MPa)
Elongation
(%)
Conductivity
(MS/m)
Cu-ETP O 2.0 or over up to and incl. 30 195 min 35 min 58 min ½ H 2.0 or over up to and incl. 30 215-275 25 min 57 min ¼ H 2.0 or over up to and incl. 20 245-315 15 min 57 min H 2.0 or over up to and incl. 10 275 min - 56 min - Bus bars Characteristics
In straight lengths
Bus bars, with sharp, round or full radius edges, in standard straight lengths
from 3.000 to 5.000 mm and tempers R200, R230, R250, R260, R280 and R300.Thickness (mm)** 2 3 4 5 6 8 10 12 15 20 Minimum width (mm) 10 10 10 10 10 10 15 20 20 25 Maximum width (mm) 30 50 60 100 120 140 200 200 200 250 Packing On pallets and or wooden cases of about 500 kg. Available in imperial sizes and other lengths upon agreement.
** Maximum thickness could be 50mm with restrictions with respect to width.
In coilsBus bars, with sharp, round or full radius edges.
Temper Thickness (mm) Width (mm) Packing Soft 3 ÷ 8 20 ÷ 40 In coils on wooden
palletsHalf-hard
HardCOD: max. 1400 mm
CID: 500 mmAvailable in imperial sizes.
BUS BARS FOR SWITCHBOARDS
-
Electrical switchboard