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CURRENT RATINGS - 3 & 4 CORE PVC

Three Phase Current Ratings. Three and four core V-90 PVC/PVC 0.6/1kV cables. Table of ratings are also applicable to armoured cables.

Cond. sizeUnenclosed - SpacedUnenclosed - TouchingEnclosed - Conduit in air - round or flat cableEnclosed - Unenclosed and partially surrounded by thermal insulationEnclosed - Unenclosed and completely surrounded by thermal insulationBuried directUnderground ductsVoltage drop 3 phase
mm2 mV/A.m
Al
16 56 53 45 42 26 75 56 4.04
25 75 71 59 57 35 97 73 2.54
35 93 87 73 69 43 117 89 1.84
50 113 106 87 85 - 138 105 1.36
70 143 134 111 107 - 170 132 0.948
95 177 165 137 132 - 204 161 0.691
120 206 192 157 154 - 233 184 0.552
150 235 219 177 175 - 261 207 0.457
185 272 253 206 203 - 296 237 0.373
240 323 301 248 240 - 344 281 0.297
300 372 345 - - - 388 318 0.251
400 434 402 - - - 444 374 0.212
500 498 461 - - - 501 422 0.186
Cu
1 13 12 11 9 6 19 14 44.7
1.5 16 15 14 12 8 24 18 28.6
2.5 23 22 20 17 11 34 25 15.6
4 31 29 25 23 15 44 33 9.71
6 40 37 33 30 19 55 42 6.49
10 54 51 44 41 25 74 55 3.86
16 72 68 58 54 34 96 73 2.43
25 97 91 76

73

 46 125 94 1.54
35 120 112 94 90 56 150 114 1.11
50 146 137 112 109 - 178 136 0.829
70 185 172 142 138 - 219 170 0.583
95 228 213 177 170 - 263 208 0.431
120 265 247 202 198 - 300 237 0.351
150 303 282 228 226 - 336 266 0.296
185 348 324 263 259 - 379 304 0.251
240 412 383 316 307 - 438 359 0.210
300 472 438 - - - 493 404 0.186
400 544 504 - - - 557 468 0.168
500 616 571 - - - 620 522 0.156

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