ABS - Max Ampacity for Cables

PartChapterSection

4I3

Vessel Systems and MachineryElectrical SystemsElectrical Equipment 4-8-3

Conductor

Size

Maximum current in amperes (see 4-8-j/9.3)

45"C ambient: 750 V and less, AC or DC; see Notes

mm'

103

circ

mils

I -core 2-core 3- or 4-core

v60PVC/A

v75R8J

XLPE

885

EPR

M95

s9J

v60PVC/A

v75R85

XLPE

E85EPR

M95

s95v60

PVC/Av75

RBJXLPE885EPR

M95

s95

625 755 894 1006 642 760 8ss 529 626 704

600 736 872 9 8 1 626 741 834 5 1 5 6 1 0 o d /

r000 662 784 882 563 666 750 463 549 617

500 6s6 778 875 558 661 744 459 545 6 1 3

950 641 760 854 545 646 '726 449 532 598

900 620 734 826 s27 624 702 434 514 578850 598 709 '19'l 508 603 677 419 496 ) ) 6

800 576 682 767 490 580 652 403 477 540

400 571 677 7 6 1 485 s75 647 400 474 533't50 553 655 '73'�7 470 557 626 387 459 5 1 6

700 s29 628 706 450 534 600 370 440 494

650 506 s99 674 430 509 573 354 4t9 4'�72600 481 5'�70 641 409 485 545 ' J I 399 449

300 335 477 565 636 285 405 480 541 235 334 396 445550 455 540 60'7 38'7 459 5 1 6 3 1 9 378 425

500 429 509 5'12 365 433 486 300 356 400240 290 415 492 553 1 4 1 353 4 1 8 470 zu5 291 344 387

450 402 476 536 )+z 405 456 281 J J J 375400 ) t J 442 498 3t'7 376 423 261 309 349

185 250 353 4 1 8 470 z t ) 300 355 400 175 247 293 329350 343 407 458 292 J+O 389 240 28s J Z I

300 3t2 370 416 265 3 1 5 354 2t8 259 291150 220 309 367 4t2 187 26i 3t2 350 t54 2t6 257 288

2s0 278 330 ) t l 236 281 3 1 5 95 231 260120 190 269 3 1 9 359 162 229 271 305 I J J 88 223 251

2 t 2 251 297 335 213 252 285 76 208 23595 1 6 5 232 276 3 1 0 140 97 235 264 1 1 6 62 93 2 t ' 1

1 6 8 2 t 7 25'l 289 84 2 1 8 246 52 80 20270 135 92 228 2s6 l l 5 O J 94 2 1 8 95 34 60 179

I J J 8 8 222 250 60 89 z l ) ) L 55 175106 o-t r93 2 t 7 39 64 84 t 4 35 152

50 105 56 1 8 4 208 89 33 56 77 74 09 29 t46

83.7 40 166 87 l 9 4 l 59 98 l 6 l 3 l

35 87 2 J 148 66 74 06 26 4 l 6 1 88 04 l 1 666.4 2 l 44 oz 03 22 3 8 8s 0 l I l 352.6 (r) 24 40 89 05 1 9 74 87 98

25 7 l 0 1 20 35 60 86 02 1 5 50 7 1 84 9541.7 9 l 08 2 l 77 92 03 64 76 85i J - | 79 93 05 67 79 89 55 65 74

TABLE 6Maximum Current Carrying Gapacity for Cables

continued....

ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS . 2OO5 593

Vessel Systems and MachineryPartGhapterSection

483

Electrical SYstemsElectrical

TABLE 6 (continued)MaximumGurrentcarry ingcapaci tyforGables

Maximum current in amperes (see 4-8-j/9'3)

45"C o*bi"r!; 7 50 V ond lutt, ACConductor

Size

^m2

1dcirc

mils

I -core 2-core 3- or -core

v60PVC/A

v75R85

XLPEEB5EPR

M95

s9Jv60

PVC/Av75

R85XLPE

E85EPR

M95s95

v60PVC/A

v75R8JXLPEE85EPR

M95s9J

l 6'16 9 l 102 46 65 7'7 87 3 8 53 oz+ 7 1

26.3 68 8 1 9 1 58 69 77 48 57 o+

20.8 59 70 78 50 60 66 4 l 49 55

10 40 5'�l o /'76

J C 48 57 65 28 40 47 53

t6.5 ) l 60 68 43 5 l 58 36 +L 48

6 29 4 l 49 55 25 35 42 47 20 29 J { 39

10.4 38 45 5 1 t z 38 43 27 32 36

4 22 3 Z 38 43 l 9 27 J L a t 1 5 22 2'7 30

6.53 28 34 38 24 29 3 Z 20 24 27

2.5 t'l 24 28 32 t4 20 1 A 27 l 2 7 20 22

4 . 1 1 2 l 25 )z 1 8 2 l 27 1 5 8 22

1.5 l 2 t t z l 26 1 0 l z + 1 8 22 8 2 l 5 1 8

r.25 l 5 1 8 z 3 l 3 l 5 20 I l 3 l o

1.0 8 t - l l 6 20 7 1 1 l 4 t'7 6 9 l 1 I 4

Notes to Table 6

(1) The nomenclature of cable insulation types used in 4-8-3/Table 6 is as follows:

Insulation tvqe designation Insulation materials Maximum conductor

temoerature, "CrEC 60092-353 rEC 60092-3PVC/A v60 Polwinyl chloride - general purpose 60

v75 Polvvinvl chloride - heat resisting'15

XLPE R85 Cross-linked polyethYlene 85

EPR E85 Ethvlene propYlene rubber 85

M95 Mineral (MI) 95

s95 s95 Silicone rubber 95

(2) The maximum current values given in 4-8-3lTable6 have been derived from IEC Publication 60092-353 and are based on ambient

temperature of 45.c and on the asiumption that when a group of four cables bunched together and laid in free air, the conductors will

attain and operate contmuously at a temperature equal to the maximum rated temperature of the insulation'

(3) The maximum current values given in 4-8-3lTable 6 (and those derived therefrom) may be used, without correction factors, for

ca'bles installed double-banked in cable conduits or cable pipes, except as noted in Note (4)'

(4) Where more than six cables expected to be operated simultaneously are laid together in a bunch in such a way that there is an

absence offree air circulation around them, a correction factor of0.85 is to be applied to the values given in 4-8-3lTable 6' Special

consideration is necessary ifthe number ofcables installed in this manner exceeds twelve'

(5) The maxlmum cuffent values given in 4-8-3lTable 6 are applicable to both armored and unarmored cables'

594 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS ' 2OO5