CCA
Copper Clad Aluminium busbar
Copper-Clad Aluminium busbar consists of a solid core of electrical grade aluminium, with
a pressure bonded outer layer of high conductivity copper.
PROPERTIES
Min. ultimate tensile strengh
130-170
MN/m2
Modus of elasticity
85x103
MN/m2
Density at 20 º C
3,63x10
Max. electrical resistivity at 20 º C
2,65x10
Min. electrical conductivity at 20 º C
3
Kg/m2
-8
Ωm
37,7x106
1/Ωm
65
%IACS
Temp. coefficient of resistance at 20 º C
4,01x10-3
1/ºC
Coeff. of linear thermal expansion º 20-100
21,9X10-6
1/ºC
Melting point
658
ºC
Specific heat
711,7
J/kg/ºC
Thermal conductivity
2,38X106
W/m2/ºC
RECOMMENDATIONS
FOR DRILLING, PUNCHING AND CUTTING
DRILLING
CUTTING
Recommended drill characteristics:
Cutting speed: 50m/min.
Drill cutting angle:135º-140º.
Helix angle: 45º.
Lubricant and coolant white spirit.
Copper-Clad Aluminium (CCA) busbar can be cut using methods that apply
to aluminium. Grinding of cut saw to a trapezoidal shape gives good results
and deburring is not necessary.
Cutting speed: 50-90 m/sec.
Lubricant and coolant white spirit.
PUNCHING
BENDING
N.B. Above factors are for bending normal to the plane.
For edge bending the forming tool radius should be multiples of the width w.
Recommended radius of forming tool
Thickness t
Width w
≤90º
90º-120º
>120º
t≤3
10 - 25
1t
1t
1t
3<t≤5
16 - 60
1t
2t
4t
12 - 50
1t
2t
4t
50 - 120
2t
3t
4t
6,3 < t ≤ 10
10 - 120
2t
3t
4t
10 < t ≤ 15
40 - 120
2t
3t
4t
5 < t ≤ 6,3
The punching tool should be designed in the same way as for use
with flat copper bars.
It is important that the die should give adequate support as near as
possible to the shearing edge.
www.bronmetal.com
www.bronmetal.de
INTERNATIONAL BRON METAL, S.A
Central.
C/Bizkargi, 6
Pol. Ind. Sarrikola
E-48195 LARRABETZU
Bizkaia-SPAIN
Tel.: +34 944 731 500
Fax.: +34 944 117 387
info@ibronmetal.com
Barcelona
C/Marconi, 13
Pol. Ind. Sesrovires
E-08635 SANT ESTEVE SESROVIRES
Barcelona-SPAIN
Tel.: +34 937 715 307
Fax.: +34 937 713 866
infob@ibronmetal.com
Madrid
C/Nobel, 2-4
Pol. Ind. San Marcos
E-28906 GETAFE
Madrid-SPAIN
Tel.: +34 91 665 25 97
Fax.: +34 91 692 86 74
infom@ibronmetal.com
Valencia
C/Mont Cabrer, 22
Pol. Ind. la Lloma
E-46960 ALDAYA
Valencia-SPAIN
Tel.: +34 961 517 297
Fax.: +34 961 517 364
infova@ibronmetal.com
México
Blvd. A. Lopez Mateos,
1206 Oriente -Piso 2
Colonia Las Insurgentes
38080 Celaya - Guanajuato
Tel.: +52 352 126 09 16
ID. 72*14*15873
info@ibronmetal.com
INTERNATIONAL BRON - METAL GmbH.
Alemania
Halskestrasse, 26
40880 RATINGEN
DEUTSCHLAND
Tel: +49 2102-7142515
Fax: +49 2102-7142518
info@bronmetal.de
AC/DC CURRENT RATINGS
Check parameters to ensure compatability of these current ratings with design specification.
Size
Corner
radius
mm
mm
10x3
0,5
20x3
0,5
25x3
0,5
10x4
0,5
16x4
1,5
20x4
1
25x4
1
30x4
1
40x4*
1
10x5
0,5
12x5
0,5
15x5
sq
20x5
1,5
20x5
sq
25x5
1,5
30x5
1,5
30x5
sq
40x5
1,5
40x5
sq
50x5*
1,5
60x5*
1,5
80x5*
1,5
20x6
2
25x6
2
28x6
2
30x6
2
40x6
2
50x6
2
60x6
2,5
75x6*
2
80x6*
2
120x6
2
12x6,3
2
16x6,3
2
20x6,3
2
25x6,3
2
28x6,3
2
32x6,3
2
38x6,3
2
40x6,3
2
50x6,3
2
63x6,3
2
65x6,3*
2
80x6,3*
2
82x6,3*
2
100X6,3*
2
120X6,3*
2
16x8
0,25
20x8
2
25x8
2
* 20% Cu by volumen
Area
Weight
mm2
29,79
59,79
74,79
39,79
62,07
79,14
99,14
119,14
159,14
49,79
59,79
75
98,07
100
123,07
158,07
150
198,07
200
248,07
298,07
398,07
116,57
146,57
164,57
176,57
236,57
396,57
354,63
446,57
476,57
716,57
72,17
97,37
122,57
154,07
172,97
198,17
235,97
248,57
311,57
393,47
406,07
500,57
513,17
626,57
752,57
127,95
156,57
196,57
g/m
0,108
0,247
0,271
0,144
0,225
0,287
0,36
0,432
0,627
0,181
0,217
0,272
0,356
0,363
0,447
0,537
0,545
0,719
0,726
0,977
1,174
1,568
0,423
0,532
0,597
0,641
0,859
1077
1287
1759
1878
2823
0,262
0,353
0,445
0,559
0,628
0,719
0,857
0,902
1131
1428
1600
1972
2022
2469
2965
0,464
0,568
0,714
DC
DC
Resistance Resistance
at 20º C
at 65º C
μOhm/m
890
443
354
666
427
335
267
222
164
532
443
353
270
265
215
179
177
134
133
105
88
66
227
181
161
150
112
89
75
58
55
36
367
272
216
172
153
134
112
107
85
67
64
52
51
42
35
207
169
135
μOhm/m
1050
523
418
786
504
395
316
26
194
628
523
417
319
313
254
211
209
158
156
124
103
77
268
213
190
177
132
105
88
69
65
43
433
321
255
203
181
158
133
126
100
80
76
62
60
49
41
244
200
159
n=1
DC
99
175
211
119
169
205
247
289
373
137
157
187
233
235
280
327
329
418
420
511
599
773
259
311
341
362
461
559
653
803
851
1222
179
224
267
320
352
393
454
474
575
702
727
873
893
1065
1254
266
312
371
n=2
AC
99
175
211
119
169
205
247
289
372
137
157
187
233
235
280
326
328
416
418
508
594
762
259
311
341
361
459
555
646
789
834
1179
179
224
267
320
351
392
452
472
569
693
717
855
873
1034
1207
266
311
370
Diameter
Area
Weight
DC Resistance
at 20º C
DC Resistance
at 65º C
mm
5
6,3
8
10
11
12
14
18
20
24
35
40
mm2
19,63
31,17
50,27
78,54
95,03
113,1
153,94
254,47
314,16
452,39
962,11
1256,64
g/m
0,071
0,113
0.182
0.285
0.345
0.411
0.559
0.924
1
1,642
3,492
4,562
μOhm/m
1350
850
527
337
279
234
172
104
84
59
28
21
μOhm/m
1593
1004
622
398
329
277
203
123
100
69
33
25
Copper-Clad Aluminium busbar
DC
188
322
386
229
319
382
457
529
676
266
304
358
439
443
522
604
607
762
766
924
1077
1376
492
584
638
673
848
1018
1181
1440
1521
2155
348
431
509
603
658
731
838
874
1048
1269
1312
1563
1596
1891
2213
517
601
708
n=3
AC
188
322
385
229
318
382
455
527
670
266
304
357
437
441
519
599
603
752
756
905
1047
1320
489
579
632
666
833
991
1140
1370
1441
1979
348
430
506
598
651
721
824
857
1018
1218
1256
1476
1504
1755
2022
514
596
698
DC
277
469
560
338
468
559
665
768
977
395
451
528
644
650
763
879
885
1105
1110
1334
1550
1971
725
856
933
984
1232
1473
1703
2069
2183
3075
517
639
750
885
964
1068
1220
1270
1517
1830
1892
2246
2292
2707
3159
768
891
1044
Current Ratings (AMPS): 30º C
Rise Over 35 º C Ambient
DC
67
92
129
176
202
228
283
403
468
604
1029
1243
AC
67
92
129
176
202
228
282
400
464
596
972
1135
n=4
AC
277
466
557
337
466
556
660
761
961
394
449
525
639
646
755
867
872
1079
1084
1285
1471
1809
18
845
918
965
1192
1400
1590
1867
1950
2538
515
634
743
872
947
1043
1181
1225
1436
1686
1732
1989
2021
2297
2580
760
877
1020
DC
366
615
733
448
617
736
873
1007
1277
525
597
698
849
858
1004
1154
1162
1446
1453
1743
2022
2565
958
1128
1228
1294
1615
1927
2225
2696
2844
3990
686
846
992
1167
1269
1404
1602
1667
1986
2390
2470
2926
2986
3520
4101
1019
1180
1380
AC
365
611
728
447
614
730
863
991
1242
522
594
693
840
848
987
1127
1134
1388
1395
1637
1856
2248
943
1103
1194
1252
1527
1774
1995
2311
2406
3103
681
837
975
1138
1230
1348
1515
1568
1816
2104
2156
2451
2488
2813
3157
1001
1149
1326
Size
Corner
radius
Area
Weight
mm
30x8
34x8
40x8
50x8
60x8
75x8
80x8
90x8
100x8
10x10
12x10
12x12
15x10
15x10
20x10
20x10
25x10
25x10
30x10
30x10
40x10
40x10
50x10
50x10
60x10
60x10
63x10
75x10
80x10
80x10
100x10
100x10
120x10
18x12
20x12
24x12
30x12
40x12
42x12
50x12
60x12
100x12
120x12
63x12,5
24x15
40x15
50x15
60x15
120x15
32x16
mm
2
2
2
2
2
2
2
2
2
sq
1
sq
1
sq
3
sq
3
sq
3
sq
3
sq
3
sq
3
sq
3
3
3
sq
3
sq
3
sq
3
sq
sq
3
sq
3
3
3
3
3
sq
3
3
3
3
3
mm2
236,57
268,57
316,57
396,57
476,57
596,57
636,57
716,57
796,57
100
119,14
144
149,14
150
192,27
200
242,27
250
292,27
300
392,27
400
492,27
500
592,27
600
622,27
742,27
792,27
800
992,27
1000
1192,27
216
232,27
288
360
472,27
504
592,27
712,27
1192,27
1432,27
779,77
360
592,27
742,27
892,27
1792,27
504,27
g/m
0,859
0,975
1149
1440
1730
2166
2311
2601
2892
0,363
0,432
0,523
0,541
0,545
0,698
0,726
0,879
0,908
1061
1089
1424
1452
1787
1815
2150
2178
2259
2694
2876
2904
3602
3630
4328
0,784
0,843
1045
1307
1714
1830
2150
2586
4328
5199
2831
1307
2150
2694
3239
6506
1831
DC
DC
Resistance Resistance
at 20º C
at 65º C
μOhm/m
112
99
84
67
56
44
42
37
33
265
222
184
178
177
138
133
109
106
91
88
68
66
54
53
45
44
43
36
33
33
27
27
22
123
114
92
74
56
53
45
37
22
19
34
74
45
36
30
15
53
μOhm/m
132
116
99
79
66
52
49
44
39
313
263
217
210
209
163
156
129
125
107
104
80
78
64
63
53
52
50
42
39
39
32
31
26
145
135
109
87
66
62
53
44
26
22
40
87
53
42
35
17
62
n=1
DC
430
476
545
658
769
933
987
1094
1201
225
253
290
295
296
357
365
425
431
491
497
619
625
746
751
870
875
907
1053
1114
1119
1353
1358
1589
383
406
471
558
693
727
831
961
1496
1755
1032
548
798
953
1105
1985
702
n=2
AC
428
473
540
649
755
908
958
1057
1154
225
252
289
294
295
356
363
422
429
487
493
611
617
731
736
848
853
882
1015
1070
1074
1282
1287
1488
381
404
468
552
681
712
809
934
1399
1617
992
542
778
918
1052
1786
688
DC
812
894
1014
1211
1403
1686
1779
1963
2146
439
493
568
575
577
695
709
820
833
937
949
1165
1176
1385
1396
1601
1612
1665
1918
2023
2033
2434
2443
2837
746
790
916
1077
1316
1376
1559
1796
2709
3151
1915
1069
1636
1809
2075
3594
1365
n=3
AC
797
874
985
1161
1328
1568
1644
1795
1942
438
491
563
570
572
686
699
804
816
913
923
1116
1126
1306
1314
1484
1492
1536
1737
1819
1825
2135
2141
2439
734
776
893
1038
1243
1292
1440
1625
2301
2625
1711
1031
1417
1618
1806
2861
1283
DC
1193
1309
1481
1760
2033
2432
2564
2824
3080
654
734
845
855
857
1032
1052
1214
1234
1383
1401
1708
1725
2023
2038
2329
2344
2420
2778
2925
2939
3504
3518
4071
1108
1174
1361
1596
1938
2023
2284
2621
3812
4534
2795
1589
2272
2663
3043
5190
2029
n=4
AC
1154
1256
1399
1620
1820
2090
2175
2338
2494
649
727
834
843
845
1009
1027
1173
1189
1317
1331
1575
1586
1801
1810
2004
2012
2063
2282
2371
2378
2711
2718
3032
1078
1137
1298
1487
1737
1794
1966
2173
2913
3248
2273
1480
1956
2188
2407
3543
1799
DC
1573
1725
1947
2309
2661
2177
3346
3681
4012
869
975
1123
1134
1138
1369
1396
1609
1634
1829
1853
2251
2273
2659
2680
3055
3075
3173
3635
3825
3843
4571
4589
5301
1471
1558
1806
2114
2559
2671
3009
3445
5111
5912
3673
2109
3009
3517
4010
6782
2692
AC
1487
1608
1777
2030
2259
2573
2674
2871
3061
859
959
1098
1108
1111
1317
1340
1518
1536
1687
1703
1984
1996
2242
2252
2478
2488
2547
2814
2921
2930
3330
3338
3713
1401
1476
1670
1890
2176
2241
2440
2690
3581
3981
2814
1885
2440
2723
2988
4347
2258
PARAMETERS
The calculated values on this data sheet are based on the following parameters.
Ambient temperature º C
Busbar temperature º C
Temperature rise º C
Supply Frequency Hz
Emissivity
35
65
30
60
0,4
n= number of bars in parallel.
Current ratings assume still but unconfined air, with busbar mounted on edge.
Current ratings are based on “Temperature Rise of Busbar”, H.B.Dwight; Gen. Elec.
Rev., vol 43.
For multiple bar arrangements, the space between bars is equal to busbar
thickness.
AC ratings are based on spacings at which the proximity effect is negligible.
These approximate calculated values should not be regarded as a subsitute for experimental testing.
www.bronmetal.com