TABLE 3

CURRENT CARRYING CAPACITIES OF THREE SINGLE – CORE 0.6/1 KV OR 1.9/3.3KV UNSCREENED FLEXIBLE CABLES WITH R-110 OR X-110 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 27 24 22 19 19
1.5 33 29 28 24 25
2.5 45 39 36 31 33
4 59 51 48 41 43
6 75 65 61 51 54
10 106 91 86 72 75
16 139 120 112 94 97
25 185 159 149 124 129
35 229 197 184 153 158
50 289 249 232 192 203
70 364 312 292 240 250
95 439 378 352 288 296
120 521 447 417 339 354
150 601 516 482 391 404
185 689 592 552 446 469
240 829 712 663 534 576
300 958 820 764 612 655
400 1155 982 915 730 810
500 1348 1138 1059 841 924
630 1598 1327 1235 977 1063

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.