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The Structure of Conductors

Markings of Conductor Structure

ek (RE) tk (RM) tkt (RM) ec (SE) tc (SM)

ek or RE: solid (single core) round
tkt or RM: stranded round compacted
tc or SM: stranded trapezoidal
tk or RM: stranded (multi-core) round
ec or SE: solid (single core) trapezoidal

The number and diameter of filaments in one core according to flexibility classification:

Cross-sectional area
(mm
2)
Multi-filament class 2 Multi-filament Fine stranded, class 5 Extra fine strands
Flexible, class 6 very flexible highly flexible extra flexible
0,035   7 x 0,08          
0,05           14 x 0,07 26 x 0,05
0,08             40 x 0,05
0,09         7 x 0,124 24 x 0,07  
0,14     18 x 0,10 18 x 0,10 18 x 0,10 36 x 0,07 72 x 0,05
0,25     14 x 0,15 32 x 0,10 32 x 0,10 65 x 0,07 128 x 0,05
0,34   7 x 0,25 19 x 0,15 42 x 0,1 42 x 0,10 88 x 0,07  
0,38   7 x 0,27 12 x 0,20 21 x 0,15 48 x 0,10 100 x 0,07 194 x 0,05
0,5 7 x 0,30 7 x 0,30 16 x 0,20 28 x 0,15 64 x 0,10 131 x 0,07 256 x 0,05
0,75 7 x 0,37 7 x 0,37 24 x 0,20 42 x 0,15 96 x 0,10 195 x 0,07 384 x 0,05
1 7 x 0,43 7 x 0,43 32 x 0,20 56 x 0,15 128 x 0,10 260 x 0,07 512 x 0,05
1,5 7 x 0,52 7 x 0,52 30 x 0,25 84 x 0,15 192 x 0,10 392 x 0,07 768 x 0,05
2,5 7 x 0,67 19 x 0,41 50 x 0,25 140 x 0,15 320 x 0,10 651 x 0,07 1280 x 0,05
4 7 x 0,85 19 x 0,52 56 x 0,30 224 x 0,15 512 x 0,10 1040 x 0,07  
6 7 x 1,05 19 x 0,64 84 x 0,30 192 x 0,20 768 x 0,10 1560 x 0,07  
10 7 x 1,35 49 x 0,51 80 x 0,40 320 x 0,20 1280 x 0,10 2600 x 0,07  
16 7 x 1,70 49 x 0,65 128 x 0,40 512 x 0,20 2048 x 0,10 4116 x 0,07  
25 7 x 2,13 84 x 0,62 200 x 0,40 800 x 0,20 3200 x 0,10 6370 x 0,07  
35 7 x 2,52 133 x 0,58 280 x 0,40 1120 x 0,20 4410 x 0,10 9100 x 0,07  
50 19 x 1,83 133 x 0,96 400 x 0,40 705 x 0,30      
70 19 x 2,17 189 x 0,69 356 x 0,50 990 x 0,30      
95 19 x 2,03 259 x 0,69 485 x 0,50 1340 x 0,30      
120 37 x 2,03 336 x 0,67 614 x 0,50 1690 x 0,30      
150 37 x 2,27 392 x 0,69 765 x 0,50 2123 x 0,30      
185 37 x 2,52 494 x 0,69 944 x 0,50 1470 x 0,40      
240 61 x 2,24 627 x 0,70 1225 x 0,50 1905 x 0,40      
300 61 x 2,50 790 x 0,70 1530 x 0,50 2385 x 0,40      
400 61 x 2,89   2034 x 0,50        
500 61 x 3,23   1768 x 0,60        
630 61 x 2,89   2228 x 0,60        


File formats


A dokumentum megtekinthető az alábbi formátumokban is:
- Microsoft Word Document formátum: http://electrocord.eu/d251-The-Structure-of-Conductors-.doc

 
 

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