THE OKONITE COMPANY
 Product Data
Section 2: Sheet 31
OkoguardŽ URO-J
15kV Underground Primary Distribution Cable-Jacketed
Red Identification Stripes
Aluminum Conductor/105°C Rating
100% and 133% Insulation Levels
.

A Conductor-Stranded Aluminum

B Strand Screen- Extruded Semiconducting EPR

C Insulation-Okoguard

D Insulation Screen- Extruded Semiconducting EPR

E Concentric Conductor-Bare Copper Wires

F Encapsulating Jacket-Okolene with 3 extruded red ID stripes

Insulation
Okoguard is Okonite's registered trade name for its exclusive ethylene-propylene rubber (EPR) based, thermosetting compound, whose optimum balance of electrical and physical properties is unequalled in other solid dielectrics. Okoguard insulation, with the distinctive red color and a totally integrated EPR system, provides the optimum balance of electrical and physical properties for long, problem free service.

The triple tandem extrusion of the screens with the insulation provides optimum electrical characteristics.

An insulation screen of ethylene-propylene rubber is extruded over the insulation. The copper concentric wires are uniformly spaced around the insulation screen. The overall polyethylene jacket provides protection against mechanical damage and corrosion.

Product identification is provided through the use of three red stripes placed 120° apart in the black jacket.

Applications
Okoguard URO-J cables provide maximum circuit longevity in underground residential distribution systems. They can be buried directly or installed in underground ducts or conduits.

Specifications
Central Conductor: Aluminum per ASTM B-609, Class B stranded per B-231.

Conductor Screen: Extruded semiconducting ethylene-propylene rubber meets or exceeds the requirements of ICEA S-94-649 and AEIC CS8.

Insulation: Extruded Okoguard meets or exceeds the requirements of ICEA S-94-649 for ethylene-propylene rubber and AEIC CS8.

Insulation Screen: Extruded semiconducting ethylene-propylene rubber meets or exceeds the requirements of ICEA S-94-649 and AEIC CS8.

Concentric Conductor: Bare copper wires.

Jacket: Black Okolene with red extruded stripes meets or exceeds the requirements of ICEA S-94-649 for polyethylene jackets.

Product Features  

  • Okoguard cables meet or exceed NEMA/ICEA and REA U-1 standards. 
  • 90°C continuous operating temperature. 
  • 130°C emergency rating. 
  • 250°C short circuit rating. 
  • Excellent corona resistance. 
  • Low dielectric constant and power factor. 
  • Screens are clean stripping. 
  • Exceptional resistance to "treeing". 
  • Moisture resistant. 
  • Overall jacket provides extended life. 
  • Red extruded stripes. 
  • Excellent resistance to most chemicals. 
  • Listed as Type MV-90 for use in accordance with Article 328 of the NEC.
  • CSA listed to C68.3
  • Design Options: 
  • Yellow Stripes 
  • Additional conductor sizes
  • Filled strand 
  • Copper central conductor
  • Copper flat strap concentric neutral 
  • Semiconducting jacket
  • Improved Temperature Rating.

Okoguard insulation system has been tested and qualified for operation at 105°C continuous and 140°C emergency operating temperature.

Okoguard Insulation: 175 mils 100% Insulation Level
1-Catalog Number
2-Conductor Size - AWG or kcmil
3-Nominal Dia. over Insulation
4-Nominal Dia. over Insulation Screen
5-Copper Neutral - No. x AWG
 06-Nominal O.D. - Inches
07-Approx. Net Weight - lbs./1000'
08-Approx. Ship Weight - lbs./1000'
09-Ampacity Direct Burial(1)
10-Ampacity Duct(1)
1 2 3 4 5 6 7 8 9 10
FULL NEUTRAL
161-23-2057 2(1x) 0.66 0.73 10 x 14 0.97 513 603 165 120
161-23-2060 2(7x) 0.68 0.76 10 x 14 1.00 536 626 165 120
161-23-2066 1(19x) 0.72 0.80 14 x 14 1.03 608 698 185 135
161-23-2069 1/0(1x) 0.72 0.80 16 x 14 1.04 657 747 210 155
161-23-2072 1/0(19x) 0.76 0.84 16 x 14 1.07 688 788 235 170
161-23-2075 2/0(19x) 0.81 0.88 14 x 12 1.15 820 910 240 175
161-23-2078 3/0(19x) 0.86 0.93 16 x 12 1.20 939 1029 270 200
161-23-2081 4/0(19x) 0.91 0.99 14 x 10 1.30 1138 1238 310 230
161-23-2084 250(37x) 0.97 1.04 16 x 10 1.36 1302 1418 340 255
161-23-2090 350(37x) 1.07 1.17 20 x 10 1.49 1615 1793 405 300
1/3 NEUTRAL
160-23-2057 2(1x) 0.66 0.73 6 x 14 0.97 467 528 155 135
160-23-2060 2(7x) 0.68 0.76 6 x 14 1.00 489 579 155 135
160-23-2066 1(19x) 0.72 0.80 6 x 14 1.03 527 617 175 155
160-23-2069 1/0(1x) 0.72 0.80 6 x 14 1.04 541 663 200 175
160-23-2072 1/0(19x) 0.76 0.84 6 x 14 1.07 572 662 200 175
160-23-2075 2/0(19x) 0.81 0.88 8 x 14 1.12 636 726 230 200
160-23-2078 3/0(19x) 0.86 0.93 10 x 14 1.17 722 889 260 230
160-23-2081 4/0(19x) 0.91 0.99 12 x 14 1.23 822 922 290 240
160-23-2084 250(37x) 0.97 1.04 14 x 14 1.28 918 1018 320 260
160-23-2090 350(37x) 1.07 1.17 18 x 14 1.41 1166 1315 380 320
160-23-2093 500(37x) 1.20 1.30 16 x 12 1.57 1513 1691 455 385
160-23-2096 750(61x) 1.39 1.49 16 x *   1.87 2152 2402 555 470
160-23-2099 1000(61x) 1.54 1.68 18 x *   2.06 2711 3059 645 550
Okoguard Insulation: 220 mils 133% Insulation Level
1-Catalog Number
2-Conductor Size - AWG or kcmil
3-Nominal Dia. over Insulation
4-Nominal Dia. over Insulation Screen
5-Copper Neutral - No. x AWG
 06-Nominal O.D. - Inches
07-Approx. Net Weight - lbs./1000'
08-Approx. Ship Weight - lbs./1000'
09-Ampacity Direct Burial(1)
10-Ampacity Duct(1)
1 2 3 4 5 6 7 8 9 10
FULL NEUTRAL
161-23-3057 2(1x) 0.75 0.82 10 x 14 1.06 585 650 175 130
161-23-3060 2(7x) 0.78 0.85 10 x 14 1.09 609 674 175 130
161-23-3066 1(19x) 0.81 0.89 14 x 14 1.13 691 781 185 135
161-23-3069 1/0(1x) 0.82 0.89 16 x 14 1.13 734 806 235 170
161-23-3072 1/0(19x) 0.85 0.93 16 x 14 1.17 767 839 235 170
161-23-3075 2/0(19x) 0.90 0.97 14 x 12 1.24 912 1012 240 175
161-23-3078 3/0(19x) 0.95 1.02 16 x 12 1.29 1036 1136 270 200
161-23-3081 4/0(19x) 1.01 1.08 14 x 10 1.39 1241 1357 310 230
161-23-3084 250(37x) 1.06 1.16 16 x 10 1.48 1441 1619 340 255
161-23-3090 350(37x) 1.17 1.27 20 x 10 1.58 1734 1912 405 300
1/3 NEUTRAL
160-23-3057 2(1x) 0.75 0.82 6 x 14 1.06 544 621 155 135
160-23-3060 2(7x) 0.78 0.85 6 x 14 1.09 569 659 155 135
160-23-3066 1(19x) 0.81 0.89 6 x 14 1.13 610 700 175 155
160-23-3069 1/0(1x) 0.82 0.89 6 x 14 1.13 625 715 235 170
160-23-3072 1/0(19x) 0.85 0.93 6 x 14 1.17 658 748 235 170
160-23-3075 2/0(19x) 0.90 0.97 8 x 14 1.21 726 826 230 200
160-23-3078 3/0(19x) 0.95 1.02 10 x 14 1.26 816 916 260 230
160-23-3081 4/0(19x) 1.01 1.08 12 x 14 1.32 912 992 310 260
160-23-3084 250(37x) 1.06 1.16 14 x 14 1.40 1052 1168 320 260
160-23-3090 350(37x) 1.17 1.27 18 x 14 1.50 1280 1458 380 320
160-23-3093 500(37x) 1.29 1.39 16 x 12 1.73 1709 1959 455 385
160-23-3096 750(61x) 1.49 1.59 16 x *   1.96 2277 2567 600 505
160-23-3099 1000(61x) 1.64 1.77 18 x *   2.15 2875 3223 645 550
* Special conductor size

Authorized Stock Item - Available from Customer Service Centers

(1) Ampacities

Full neutral, single phase ampacities are based on ICEA S-94-649, Appendix F for 90°C conductor temperature, 20°C ambient temperature, 100% load factor, an earth thermal resistivity of RHO 90 and modified for jacketed cable.

One third neutral, three phase ampacities are based on ICEA P-53-426 triplexed or triangular configuration for the same conditions stated above.

B/04090231
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