Peak Cables - Conductor Stranding Chart
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Conductor Stranding Chart

Conductors in the past were normally measured by the number and diameter of individual strands, cross sectional area or both.  The new system for measuring flexible conductors (column 3 & 4 in table below) now centers on the core resistance and the maximum strand diameter.  Cables now can have a smaller diameter and fewer strands than in the table below but will still conform to the standards BS EN 60228, VDE 0295 and IEC 228 by having the correct conductor resistance.

Examples of metric conductor make up:

Cross
Section
mm²
Multi wire strands Multi wire strands Fine wire strands Super Fine Wire Strands
0.14       18 x 0.1 18 x 0.1 36 x 0.07 72 x 0.05
0.25     14 x 0.15 32 x 0.1 32 x 0.1 65 x 0.07 128 x 0.05
0.34   7 x 0.25 19 x 0.15 42 x 0.1 42 x 0.1 88 x 0.07 174 x 0.05
0.38   7 x 0.27 12 x 0.2 21 x 0.16 48 x 0.1 100 x 0.07 194 x 0.05
0.5 7 x 0.30 7 x 0.30 16 x 0.2 28 x 0.16 64 x 0.1 131 x 0.07 265 x 0.05
0.75 7 x 0.37 7 x 0.37 24 x 0.2 42 x 0.16 96 x 0.1 195 x 0.07 384 x 0.05
1.0 7 x 0.44 7 x 0.43 32 x 0.2 56 x 0.16 128 x 0.1 260 x 0.07 512 x 0.05
1.5 7 x 0.53 7 x 0.52 30 x 0.25 84 x 0.16 192 x 0.1 392 x 0.07 768 x 0.07
2.5 7 x 0.67 19 x 0.41 50 x 0.25 140 x 0.16 320 x 0.1 651 x 0.07 1280 x 0.05
4 7 x 0.85 19 x 0.52 56 x 0.30 224 x 0.16 512 x 0.1 1040 x 0.07  
6 7 x 1.04 19 x 0.64 84 x 0.30 192 x 0.21 768 x 0.1 1560 x 0.07  
10 7 x 1.35 49 x 0.51 80 x 0.40 320 x 0.21 1280 x 0.1 2600 x 0.07  
16 7 x 1.70 49 x 0.65 128 x 0.40 512 x 0.21 2084 x 0.1    
25 7 x 2.13 84 x 0.62 200 x 0.40 800 x 0.21 3200 x 0.1    
35 7 x 2.52 133 x 0.58 280 x 0.40 1120 x 0.21      
50 19 x 1.83 133 x 0.69 400 x 0.40 705 x 0.31      
70 19 x 2.14 189 x 0.69 356 x 0.50 990 x 0.31      
95 19 x 2.52 259 x 0.69 485 x 0.5 1340 x 0.31      
120 37 x 2.03 336 x 0.67 614 x 0.50 1690 x 0.31      
150 37 x 2.27 392 x 0.69 765 x 0.50 2123 x 0.31      
185 37 x 2.52 494 x 0.69 994 x 0.5 1470 x 0.31      
240 61 x 2.24 627 x 0.70 1125 x 0.5 1905 x 0.31      
300 61 x 2.50 790 x 0.70 1530 x 0.5 2385 x 0.31      
400 61 x 2.89   2035 x 0.5        
500 61 x 3.23   1768 x 0.6        
630 91 x 2.97   2286 x 0.6