K Factor Chart

Cable Diameter Factors (K) for Multi-Conductor Cables

The overall diameter (before tape or drains) of the cable may be estimated by multiplying the diameter of one of the identical components by the K factor shown below. Accurate only with lay-ups indicated.


# of Pairs or
Conductors
Lay-up
Multipliers
Conductors
Pairs
Unilay
Concentric
1 1 1.000 1.000 2.00
2 2 2.000 2.000 3.20
3 3 2.155 2.155 3.48
4 4 2.414 2.414 3.91
5 f+5 2.701 2.701 4.43
6 f+6 3.000 3.000 4.91
7 1+6 3.000 3.000 5.26
8 (1+f)+7 3.305 3.305 5.49
9 (1+f)+8 3.613 3.613 6.00
10 (2+2f)+8 3.828 4.000 6.35
11 (2+2f)+9 3.924 4.000 6.51
12 3+9 4.030 4.155 6.51
13 4+(9+f) 4.195 4.414 6.96
14 4+10 4.236 4.414 7.03
15 f+5+(10+f) 4.521 4.701 7.50
16 f+5+11 4.553 4.701 7.56
# of Pairs or
Conductors
Lay-up
Multipliers
Conductors
Pairs
Unilay
Concentric
17 1+6+(10+2f) 4.842 5.000 8.00
18 1+6+(11+f) 4.820 5.000 8.04
19 1+6+12 4.864 5.000 8.07
20 f+7+13 5.458 5.305 8.60
21 (1+f)+7+13 5.179 5.305 8.60
22 (1+f)+8+13 5.179 5.613 9.06
23 (1+f)+8+14 5.458 5.613 9.12
24 (2+2f)+8+14 5.494 6.000 9.41
25 3+9+(13+2f) 5.666 6.155 9.41
26 3+9+(14+f) 5.856 6.155 9.72
27 3+9+15 5.879 6.155 9.76
28 4+10+(14+2f) 6.044 6.414 10.03
29 4+10+(15+f) 6.065 6.414 10.07
30 4+10+6 6.126 6.414 10.17
31 f+5+11+(15+2f) 6.363 6.701 10.56
32 f+5+11+(16+f) 6.383 6.701 10.60
33 f+5+11+17 6.442 6.701 10.69
# of Pairs or
Conductors
Lay-up
Multipliers
Conductors
Pairs
Unilay
Concentric
34 1+6+12+(15+3f) 6.652 7.000 11.04
35 1+6+12+(16+2f) 6.670 7.000 11.07
36 1+6+12+(17+f) 6.689 7.000 11.10
37 1+6+12+18 6.759 7.000 11.22
38 (1+f)+7+13+(17+2f) 6.981 7.305 11.59
39 (1+f)+7+13+(18+f) 6.999 7.305 11.62
40 (1+f)+7+13+19 7.076 7.305 11.75
41 (2+2f)+8+14+(17+3f) 7.429 8.000 12.33
42 (2+2f)+8+14+(18+2f) 7.447 8.000 12.36
43 (2+2f)+8+14+(19+1) 7.464 8.000 12.39
44 (2+2f)+8+14+20 7.482 8.000 12.42
45 3+19+15+(18+3f) 7.651 8.155 12.70
46 3+9+15+(19+2f) 7.667 8.155 12.73
47 3+9+15+(20+f) 7.684 8.155 12.76
48 3+9+15+21 7.710 8.155 12.80
49 4+10+16+(19+3f) 7.903 8.414 13.12
50 4+10+16+(20+2f) 7.918 8.414 13.14
Read 11707 times Last modified on Wednesday, 01 January 2014 21:24

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