|
Table 4.4
- Correction factors for groups of cables
|
|||
|
Number of circuits
|
Correction factor Cg
|
||
|
-
|
Enclosed or clipped
|
Clipped to non-metallic surface
|
|
|
-
|
-
|
Touching
|
Spaced*
|
|
2
|
0.80
|
0.85
|
0.94
|
|
3
|
0.70
|
0.79
|
0.90
|
|
4
|
0.65
|
0.75
|
0.90
|
|
5
|
0.60
|
0.73
|
0.90
|
|
6
|
0.57
|
0.72
|
0.90
|
|
7
|
0.54
|
0.72
|
0.90
|
|
8
|
0.52
|
0.71
|
0.90
|
|
9
|
0.50
|
0.70
|
0.90
|
|
10
|
0.48
|
----------
|
0.90
|
|
* ‘Spaced’ means a gap between
cables at least equal to cable diameter.
|
|||
Extracted from The Electricians Guide Fifth Edition
by John Whitfield
Published by EPA Press Click Here to order your Copy.