PVC Current Ratings (Copper)

From Open Electrical
Jump to: navigation, search

Current ratings are based on values given in IEC 60364-5-52 (2009), with a reference conductor temperature of 70oC, ambient temperature of 30oC and soil temperature of 20oC.

Two Loaded Conductors

Size ([math]mm^{2}[/math]) Current Rating for 2 x PVC Insulated Copper Conductors
Reference Installation Method
A1 A2 B1 B2 C D1 D2 E F
1.5 14.5 14 17.5 16.5 19.5 22 22 22
2.5 19.5 18.5 24 23 27 29 28 30
4 26 25 32 30 36 37 38 40
6 34 32 41 38 46 46 48 51
10 46 43 57 52 63 60 64 70
16 61 57 76 69 85 78 83 94
25 80 75 101 90 112 99 110 119 131
35 99 92 125 111 138 119 132 148 162
50 119 110 151 133 168 140 156 180 196
70 151 139 192 168 213 173 192 232 251
95 182 167 232 201 258 204 230 282 304
120 210 192 269 232 299 231 261 328 352
150 240 219 300 258 344 261 293 379 406
185 273 248 341 294 392 292 331 434 463
240 321 291 400 344 461 336 382 514 546
300 367 334 458 394 530 379 427 593 629
400 754
500 868
630 1005

Three Loaded Conductors

Size ([math]mm^{2}[/math]) Current Rating for 3 x PVC Insulated Copper Conductors
Reference Installation Method
A1 A2 B1 B2 C D1 D2 E F G
Trefoil Laid Flat Horizontal Vertical
1.5 13.5 13 15.5 15 17.5 18 19 18.5
2.5 18 17.5 21 20 24 24 24 25
4 24 23 28 27 32 30 33 34
6 31 29 36 34 41 38 41 43
10 42 39 50 46 57 50 54 60
16 56 52 68 62 76 64 70 80
25 73 68 89 80 96 82 92 101 110 114 146 130
35 89 83 110 99 119 98 110 126 137 143 181 162
50 108 99 134 118 144 116 130 153 167 174 219 197
70 136 125 171 149 184 143 162 196 216 225 281 254
95 164 150 207 179 223 169 193 238 264 275 341 311
120 188 172 239 206 259 192 220 276 308 321 396 362
150 216 196 262 225 299 217 246 319 356 372 456 419
185 245 223 296 255 341 243 278 364 409 427 521 480
240 286 261 346 297 403 280 320 430 485 507 615 569
300 328 298 394 339 464 316 359 497 561 587 709 659
400 656 689 852 795
500 749 789 982 920
630 855 905 1138 1070

Back to Low Voltage Cable Data Reference