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IEC60092 STANDARD MariLan Marine Lan Data & Communication Cables

Current Ratings for Continuous Service (IEC 60092-352)

Conductor temperature 90℃
Nominal cross- sectional Area (mm²) Single core ( A ) Two core ( A ) Three core & four core ( A )
0.5 10 8.5 7
0.75 13 11 9
1 18 15 13
1.5 23 20 16
2.5 30 26 21
4 40 34 28
6 52 44 36
10 72 61 50
16 96 82 67
25 127 108 89
35 157 133 110
50 196 167 137
70 242 206 169
95 293 249 205
120 339 288 237
150 389 331 273
185 444 377 311
240 522 444 366
300 601 511 420
  d.c. a.c. d.c. a.c. d.c. a.c.
400 690 670 587 570 483 469
500 780 720 663 612 546 504
500 890 780 757 663 623 546

Note 1. Maximum permissible service temperature of the conductor is 90℃. 2. The current ratings given above are based on an ambient air temperature of 45℃. 3. The current ratings given above are for 6 cables of less bunched or laid together in flat formation. When more than 6 cables are bunched or laid close together, the current ratings given above should be multiplied by correction factor 0.85. 4. For cables with more than four core cables, the current ratings are calculated by the following formula. I=I1/N1/3 I1: Current for single core cable N: Number of cores 5. Correction factors for various ambient air temperature

Maximum conductor temperature Correction factors for ambient air temperature
35 40 45 50 55 60 65 70 75 80
90 1.10 1.05 1.00 0.94 0.88 0.82 0.74 0.67 0.58 0.47