Technical Sheet - Current Capability

CURRENT CAPABILITY FOR RUBBER INSULATED CABLES (G7 - G10)

 

Values in the table refer to the following conditions of use and installation:

- Operating temperature of 90 °C conductor

- Temperature for installation in air: 30 °C

- For laying underground soil temperature: 20 °C

- Thermal resistivity of soil: 100 °C cm/W

Section Laying in the air within tubes or boxes - or cassette against the wall Free-hanging, cables against the wall or suspended from rope Laying underground
3 single core cables A three-conductor cable 3 single core cables 1 power pole 3 single core cables A three-conductor cable
mm² A A A A A A
1,5 19,5 19,5 24 23 30 28,5
2,5 26 26 33 32 41 38
4 35 35 45 42 53 49
6 46 44 58 54 67 61
10 63 60 80 75 89 81
16 85 80 107 100 115 104
25 112 105 135 127 149 133
35 138 128 169 157 179 159
50 168 154 207 192 210 188
70 213 194 268 246 260 230
95 268 233 327 298 315 275
120 310 268 383 346 360 312
150 350 300 444 399 405 345
185 392 340 510 456 455 390
240 461 398 607 538 530 460
300 530 455 703 621 585 520
400 605 - 823 - - -

CURRENT CAPABILITY INSULATED PVC CABLES

 

Values in the table refer to the following conditions of use and installation:

- Operating temperature of 70 °C conductor

- Temperature for installation in air: 30 °C

- For laying underground soil temperature: 20 °C

- Thermal resistivity of soil: 100 °C cm/W

Section Laying in the air within tubes or boxes - or cassette against the wall Free-hanging, cables against the wall or suspended from rope Laying underground
3 single core cables A three-conductor cable 3 single core cables 1 power pole 3 single core cables A three-conductor cable
mm² A A A A A A
1,5 15,5 15,5 19,5 17,5 30 25
2,5 21 21 26 24 37 34
4 28 28 35 32 47 43
6 36 36 46 41 60 53
10 50 50 63 57 70 71
16 68 68 85 76 102 93
25 89 89 112 101 132 120
35 111 111 138 125 158 145
50 134 134 168 151 190 172
70 171 173 213 192 230 215
95 207 207 258 232 280 250
120 239 239 299 269 315 290
150 275 275 344 309 355 325
185 314 314 392 353 405 365
240 369 369 461 415 470 430
300 420 420 530 470 520 490
400 485 485 605 540 580 555
500 550 545 690 610 660 630
630 640 - 800 - 740 -

CURRENT CAPABILITY H1Z2Z2-K AND SOLAR TÜV CABLES

Nominal cross sectional area Current carrying capacity according to method of installation
Single cable free in air Single cable on a surface Two loaded cables touching, on a surface
mm²

A

A

A

1,5 30 29 24
2,5 41 39 33
4 55 52 44
6 70 67 57
10 98 93 79
16 132 125 107
25 176 167 142
35 218 207 176
50 276 262 221
70 347 330 278
95 416 395 333
120 488 464 390
150 566 538 453
185 644 612 515
240 775 736 620
Ambient temperature: 60 °C (see table for other ambient temperature) max. condurctor temperature: 120 °C
NOTE: The expected period of use at max. conductor temperature of 120 °C and at a max. ambient temeprature of 90 °C is limited to 20000 h

CURRENT RATING CONVERSION FACTORS FOR DIFFERENT AMBIENT TEMPERATURES

AMBIENT TEMPERATURE

CONVERSION FACTOR

°C  
up to 60 1,00
70 0,92
80 0,84
90 0,75

GROUPS:

For installation in groups the reduction factors for current rating according to HD 60364-5-42:2011, table B.52.17 shall apply.

 

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