TABLE 2

CURRENT CARRYING CAPACITIES OF THREE SINGLE CORE 0.6/1 KV UNSCREENED FLEXIBLE CABLES WITH R-90 OR X-90 INSULATION

1 2 3 4 5 6
Conductor size Current-carrying capacity, A
Unenclosed Enclosed
Spaced
Spaced from
surface
Touching
Exposed to
Sun 
Wiring enclosed
in air
mm2 Cu Cu Cu Cu Cu
1 22 19 18 14 17
1.5 28 24 22 18 21
2.5 36 32 30 23 26
4 50 42 40 30 34
6 63 54 51 37 45
10 88 76 70 53 61
16 117 100 94 69 80
25 156 133 125 91 103
35 195 166 155 113 130
50 245 210 196 141 158
70 311 265 248 177 201
95 375 319 298 211 235
120 447 381 354 249 282
150 517 440 409 286 320
185 594 505 470 326 367
240 716 608 565 387 430
300 827 701 650 442 504
400 1000 840 780 525 586
500 1168 972 903 601 693
630 1382 1133 1052 693 791

These ratings are based on 30°C ambient air temperature and 15°C ambient soil temperature. Maximum conductor temperature 90°C. Copyright Standard New Zealand 2011. This data is based on content from Table 7, AS/NZS 3008.1.2:2010. For other conditions refer to the Standard for full details.

APPROX. DE-RATING FOR DIFFERENT AMBIENT TEMP. °C 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
Factor 1.15 1.12 1.08 1.04 1.00 0.96 0.91 0.87 0.82 0.76 0.65 0.58 0.50 0.41 0.29

Copyright Standards New Zealand 2011. Selected tables from AS/NZS 3008.1.2:2010 Electrical installations - Selection of cables - Cables for alternating voltages up to and including 0.6/1 kV - Typical New Zealand conditions have been reproduced with permission from Standards New Zealand under Licence. Please refer to Standards New Zealand for the complete Standard available for purchase at www.standards.co.nz.

Firstflex has taken every precaution to ensure accurate information in this catalogue but accept no liability for any errors or omissions. Firstflex reserves the right to modify specifications at any time.