RWU90 (–40°C) XLPE 1000 Volts 90°C Copper

Single copper conductor with extra thickness of low temperature moisture resisting cross-linked polyethylene insulation. Rated 1000 volts. CSA Spec C22.2 No. 38-M1986

Applications:

ECS
Catalogue
Number 		Conductor Insulation
(inches)

Ampacity

(30°C Ambient)
(amps)

Free Air

Ampacity

(30°C Ambient)
(amps)

Conduit#

Nominal
O.D.
(inches) 		Total
Weight
(lbs/km)
No. AWG
Size 		Stranding
RWU14ST 1 14 7 Strand .060 20 15 .19 75
RWU12ST 1 12 7 Strand .060 25 20 .21 105
RWU10ST 1 10 7 Strand .060 40 30 .24 151
RWU08ST 1 8 7 Strand .080 70 45 .31 249
RWU06ST 1 6 7 Strand .080 100 65 .35 361
RWU04ST 1 4 7 Strand .080 135 85 .39 538
RWU03ST 1 3 7 Strand .080 155 105 .42 659
RWU02ST 1 2 7 Strand .080 180 120 .45 810
RWU01ST 1 1 19 Strand .095 210 140 .52 1,266
RWU001ST 1 1/0 19 Strand .095 245 155 .56 1,165
RWU002ST 1 2/0 19 Strand .095 285 185* .60 1,568
RWU003ST 1 3/0 19 Strand .095 330 210 .65 1,942
RWU004ST 1 4/0 19 Strand .095 385 235 .71 2,414
RWU250ST 1 250 37 Strand .110 425 265 .79 2,871
RWU300ST 1 300 37 Strand .110 480 295 .84 3,405
RWU350ST 1 350 37 Strand .110 530 225 .89 3,940
RWU400ST 1 400 37 Strand .110 575 245 .94 4,469
RWU500ST 1 500 37 Strand .110 660 295 1.02 5,528
RWU600ST 1 600 61 Strand .125 740 455 1.13 6,640
RWU750ST 1 750 61 Strand .125 845 500 1.23 8,219
RWU1000ST 1 1000 61 Strand .125 1000 585 1.38 10,840

Colours: Standard colours are available.

Non-jacketed RW-90 (XLPE) cables are not suitable for installation in vaults and switch rooms under the conditions of C.E. Code Part 1 Rule 12-2204. Suitable flame retardant jacketed cables are available on request.

*For 3-wire 120/240 and 120/208V residential services or sub-services, the allowable ampacity for sizes #6, #2 and #4/0 AWG aluminum shall be 60, 100 and 200 amperes respectively. #2/0 AWG copper shall be 200 amperes. In these cases, the 5% adjustment per C.E. Code Rule 8-106(1) cannot be applied.

# Based on not more than 3 copper or aluminum conductors in raceway or cable. For 1 conductor per underground duct installation ampacities see below.

Applications:

For direct earth burial (with protection as required by inspecting authority).**
For exposed wiring where exposed to weather with sunlight resistant insulation. Standard Black #8 and larger is sunlight resistant and marked "Outdoor"; coloured insulation is NOT. For service entrance above or below ground.**
Minimum recommended installation temperature minus 40°C (with suitable handling procedures).
Maximum conductor temperature 90°C.

Parallel Cable Configurations

Recommended Configurations
For installation of single conductor cables IN FREE AIR

ATTENTION
Only these configurations are recommended by to obtain satisfactory load sharing.
Spacing between cables is one cable diameter (2 diameters centre to centre) for Can Elect Code Table 1 or 3 ratings. For 1/C cables direct buried, embedded in concrete or plaster and for 1/C cables in underground or embedded duct see tables bellow.

The installation of more than four conductors in parallel per phase without engineering analysis is not recommended. Neutral conductors to be located outside of the above groups in the most convenient manner. Spacing between groups to be equal to width of group.


Ampacity Rating and Recommended Configurations
For installation of single conductor cables IN DIRECT BURIAL

ATTENTION
Only these configurations are recommended by to obtain satisfactory load sharing and ampacity. See C.E.C. Code Rules 4-004, 12-012, Appendix B, Appendix D8 and Appendix D10.

Single Conductor Ampacities, Directly Buried Cables Types RWU90, RA90, TECK 90, ACWU90, 0 to 5 kV

 
Size 1Cable/Phase
ABC
7.5"
OOO		 2Cable/Phase
ABC CBA

OOOOOO		 2Cable/Phase
ABC CBA
24"
OOO OOO		 4Cable/Phase
ABC CBA

OOOOOO
OOOOOO		 4Cable/Phase
ABC CBA
24"
OOO OOO
OOO OOO		 6Cable/Phase
ABC CBA

OOOOOO
OOOOOO
OOOOOO
OOOOOO		 6Cable/Phase
ABC CBA
24"
OOO OOO
OOO OOO
OOO OOO
  CU AL CU AL CU AL CU AL CU AL CU AL CU AL
1/0 295 230 267 208 275 215 203 158 220 171 165 129 179 140
2/0 335 265 302 235 310 245 229 178 248 193 186 145 202 157
3/0 385 300 341 266 355 275 258 201 280 218 210 163 228 178
4/0 435 340 386 301 400 310 291 227 315 246 236 183 256 200
250 470 370 421 328 435 340 317 247 343 267 256 200 278 217
350 570 445 500 390 520 410 375 292 408 318 304 237 331 258
500 690 540 605 471 630 495 452 352 489 383 365 284 396 309
600 752 590 659 513 682 541 491 382 534 419 397 308 433 340
750 845 665 745 580 775 610 554 431 596 469 447 348 482 379
1000 980 780 846 659 890 710 627 488 683 542 505 393 551 437
1250 1083 868 935 750 985 790 691 554 753 604 556 446 607 487
1500 1176 952 1011 821 1068 865 746 605 813 660 600 487 655 531
1750 1257 1027 1078 880 1140 932 793 647 865 706 637 520 696 568
2000 1325 1094 1133 934 1200 991 832 686 909 749 669 552 730 602

 

Notes
The above ampacities are based on the following conditions:
– 100% load factor
– Ambient soil temperature of 20°C
– Soil resistivity of 90 C
–cm/W – Conductor temperature of 90°C
– Spacing between conductor centres of 7.5" and 24" between groups
– Burial depth of 36" to centre of top cable layer
– Open circuit sheath/shield operation

Neutral conductors to be located outside of the above groups in the most convenient manner.