TABLE - 49
CURRENT RATINGS & VOLTAGE DROP OF THE CABLES - 600/1000 V 3 and 4 Core, Copper, PVC insulated Armoured/Unarmoured Cables.
Approx Voltage Drop (3 Phase System)
Area
In Air
In Ground
I n Duct
Unarmoured Armoured
Armoured
Armoured
Trefoil
mm²
A
A
A
A
V/A/km
1.5
14
14
22
18
25.1
2.5
20
19
28
23
15.4
4
25
25
38
30
9.6
6
32
32
47
38
6.4
10
42
44
62
51
3.8
16
56
58
81
66
2.4
25
74
78
106
86
1.5
35
91
95
127
103
1.10
50
111
115
150
122
0.816
70
141
146
186
152
0.573
95
174
180
223
182
0.423
120
202
208
254
208
0.346
150
231
238
284
234
0.292
185
267
273
321
265
0.246
240
318
322
370
306
0.207
300
365
366
414
342
0.184
400
423
420
464
392
0.166
Operating Conditions Ambient air temp.
50 °C 35 °C
Ground temp. Depth of Laying
0.50 m
Thermal resistivity of Soil
1.2 K.m/W
42 MKK XXS002-02/01-12-2014
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