AS/NZS 3008.1.1:2025
Table 3.21
Current ratings (d.c.), two single‑core cables, thermoplastic 75 °C
The DC cable size tool reads the d.c. rating here for two single‑core thermoplastic cables, in copper or aluminium, for each installation method.
Đã xác minh: đối chiếu với tiêu chuẩn in, trang 54–55. Đã kiểm tra 27 Sept 2026.
Đơn vị: Rating A
Đây là các giá trị mà AmpSize mã hóa. Không sao chép nội dung tiêu chuẩn. Hãy đối chiếu với tiêu chuẩn hiện hành.
20 hàng
| Size | Cu spaced apart | Cu spaced from surface | Cu touching | Cu sun | Cu enclosed air | Cu insulation partial | Cu insulation complete | Cu buried direct | Cu underground one enclosure | Cu underground separate enclosures | Al spaced apart | Al spaced from surface | Al touching | Al sun | Al enclosed air | Al insulation partial | Al insulation complete | Al buried direct | Al underground one enclosure | Al underground separate enclosures |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 16 | 16 | 13 | 8 | 13 | 11 | 6 | 24 | 18 | 21 | — | — | — | — | — | — | — | — | — | — |
| 1.5 | 21 | 21 | 16 | 10 | 18 | 14 | 8 | 31 | 23 | 26 | — | — | — | — | — | — | — | — | — | — |
| 2.5 | 30 | 29 | 23 | 13 | 24 | 20 | 12 | 43 | 32 | 36 | — | — | — | — | — | — | — | — | — | — |
| 4 | 40 | 39 | 31 | 18 | 32 | 25 | 16 | 56 | 41 | 47 | — | — | — | — | — | — | — | — | — | — |
| 6 | 51 | 49 | 40 | 22 | 41 | 33 | 20 | 71 | 52 | 58 | — | — | — | — | — | — | — | — | — | — |
| 10 | 69 | 67 | 54 | 30 | 54 | 44 | 27 | 94 | 69 | 77 | — | — | — | — | — | — | — | — | — | — |
| 16 | 92 | 89 | 72 | 39 | 70 | 56 | 36 | 122 | 89 | 99 | 72 | 69 | 56 | 30 | 54 | 43 | 28 | 95 | 69 | 77 |
| 25 | 124 | 119 | 97 | 50 | 94 | 75 | 48 | 158 | 116 | 129 | 96 | 92 | 75 | 39 | 73 | 58 | 38 | 123 | 90 | 100 |
| 35 | 153 | 145 | 119 | 61 | 112 | 90 | 59 | 190 | 139 | 155 | 119 | 113 | 92 | 47 | 87 | 70 | 46 | 147 | 108 | 120 |
| 50 | 187 | 177 | 146 | 72 | 138 | 110 | — | 225 | 168 | 186 | 145 | 137 | 113 | 56 | 107 | 86 | — | 174 | 130 | 145 |
| 70 | 238 | 224 | 185 | 89 | 170 | 136 | — | 277 | 206 | 228 | 184 | 174 | 143 | 69 | 132 | 105 | — | 215 | 160 | 177 |
| 95 | 295 | 277 | 230 | 107 | 212 | 170 | — | 332 | 252 | 278 | 229 | 214 | 178 | 83 | 164 | 132 | — | 258 | 195 | 215 |
| 120 | 345 | 322 | 268 | 123 | 242 | 194 | — | 379 | 288 | 316 | 268 | 250 | 208 | 95 | 188 | 151 | — | 294 | 223 | 245 |
| 150 | 396 | 369 | 309 | 137 | 283 | 226 | — | 426 | 330 | 355 | 307 | 286 | 239 | 106 | 219 | 175 | — | 330 | 256 | 275 |
| 185 | 460 | 427 | 360 | 155 | 322 | 258 | — | 483 | 376 | 409 | 357 | 331 | 279 | 120 | 250 | 200 | — | 374 | 291 | 317 |
| 240 | 552 | 511 | 433 | 179 | 386 | 309 | — | 563 | 444 | 476 | 428 | 396 | 336 | 139 | 299 | 239 | — | 436 | 344 | 369 |
| 300 | 642 | 593 | 505 | 201 | 440 | 352 | — | 640 | 505 | 551 | 497 | 459 | 390 | 156 | 341 | 272 | — | 495 | 391 | 426 |
| 400 | 757 | 697 | 595 | 228 | 526 | 421 | — | 735 | 592 | 632 | 587 | 541 | 462 | 177 | 408 | 326 | — | 570 | 459 | 490 |
| 500 | 891 | 820 | 702 | 257 | 608 | 486 | — | 846 | 683 | 742 | 692 | 636 | 545 | 200 | 472 | 377 | — | 657 | 530 | 576 |
| 630 | 1061 | 973 | 835 | 292 | 739 | 591 | — | 981 | 814 | 857 | 822 | 754 | 647 | 226 | 572 | 458 | — | 761 | 631 | 664 |