Table 5.5 - Resistance
per metre of copper conductors at 20°C for
---------------- calculation
of R1 + R2
Conductor cross-sectional area
(mm²)
Resistance per metre run
(m ohms / m)
1.0
18.1
1.5
12.10
2.5
7.41
4.0
4.61
6.0
3.08
10.0
1.83
16.0
1.15
25.0
0.727
Note that to allow for the increase
in resistance with increased temperature under fault
conditions the values of {Table 5.5} must be multiplied
by 1.2 for p.v.c. insulated cables (see {Table 8.7})
Extracted
from The Electricians Guide Fifth Edition by John Whitfield Published by EPA PressClick
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