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Product Data
Section 2: Sheet 18
Okoguard®-Okoseal®
69kV Shielded Power Cable
Conductor/105°C Rating
100% Insulation Level
A Uncoated, Okopact (Compact or Compress Stranded) Copper or Aluminum Conductor

B Strand Screen-Extruded Semiconducting EPR

C Insulation-Okoguard EPR

D Insulation Screen-Extruded Semiconducting EPR

E Shield- 5 Mil Uncoated Copper Tape

F Jacket-Okoseal


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 intergrated 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.

Jacket
The Okoseal (PVC) jacket supplied with this cable is mechanically rugged and has excellent resistance to oil and most chemicals.

Applications
Okoguard-Shielded-Okoseal 69kV Cables are designed for use as primary circuits in electrical utility and industry applications where they provide maximum circuit security and economical installation. Rated 105°C for continuous operating temperature, Okoguard 69kV cables may be installed in wet or dry locations indoors or outdoors (exposed to sunlight) in underground ducts, conduits or direct burial.

Specifications
Conductor: Uncoated copper sizes 350 through 1000 kcmil compact round stranding per ASTM B0496. Uncoated copper sizes larger than 1000 kcmil compress round stranding per ASTM B-8. EC grade aluminum compressed round stranding per ASTM B-231.

Strand Screen: Extruded semiconducting EPR strand screen. Meets or exceeds electrical and physical requirements of ICEA S-93-639/NEMA WC74 & S-97-682, AEIC CS6.

Insulation: Meets or exceeds electrical and physical requirements of ICEA S-93-639/NEMA WC74 & S-97-682 and AEIC CS6.

Insulation Screen: Extruded semiconducting EPR insulation screen applied directly over and bonded to the insulation. Meets or exceeds electrical and physical requirements of ICEA S-93-639/NEMA WC74 & S-97-682, AEIC CS6.

Shield: 5 mil bare copper tape helically applied.

Jacket: Meets or exceeds electrical and physical requirements of ICEA S-93-639/NEMA WC74 & S-97-682 for polyvinyl chloride jackets.

Product Features

  • Triple tandem extruded, all EPR system.
  • Okoguard cables meet or exceed recognized industry standards (AEIC, NEMA/ICEA).
  • 105°C continuous operating temperature.
  • 140°C emergency rating.
  • 250°C short circuit rating.
  • Excellent corona resistance.
  • Exceptional resistance to "treeing".
  • Low shield resistance.
  • Moisture resistant.
  • Resistant to most oils, acids, and alkalies.
  • Sunlight resistant.
  • Improved Temperature Rating.

Okoguard Insulation: 650 mils(16.5mm)
1-Catalog Number
2-Conductor Size - AWG or kcmil
3-Conductor Size - mm2
4-Approx. Dia. over Insulation(in.)
5-Approx. Dia. over Screen(in.)
6-Jacket Thickness - mils
7-Jacket Thickness - mm
08-Approx. O.D. - Inches
09-Approx. O.D. - mm
10-Approx. Net Weight lbs./1000'
11-Approx. Ship Weight lbs./1000'
12-Ampacities Direct Burial(1)
13-Ampacities Underground Duct(1)
14-Conduit Size-Inches*(2)
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Copper Conductor - Compact Round

115-22-3767
115-22-3771
115-22-3775

        350*
        500
        750

177
253
380

2.01
2.13
2.30

2.11
2.23
2.40

110
110
110

2.79
2.79
2.79

2.36
2.48
2.64

59.9
63.0
67.1

3538
4179
5213

3873
4514
5805

550
667
825

495
599
742

3 1/2
3 1/2
4

115-22-3777

    1000

507

2.45

2.55

140

3.56

2.86

72.6

6389

7151

957

861

4

Copper Conductor - Compress Round

115-22-3778

    1250

633

2.68

2.78

140

3.56

3.09

78.5

7582

8344

1066

959

5

115-22-3779

     1500

761

2.78

2.88

140

3.56

3.19

81.0

8527

9447

1157

1042

5

Aluminum Conductor - Compress Round

135-22-3767
135-22-3771
135-22-3775

        350*
        500
        750

177
253
380

2.06
2.19
2.37

2.16
2.29
2.47

110
110
110

2.79
2.79
2.79

2.41
2.54
2.72

61.2
64.5
69.1

2888
3244
3778

3223
3579
4175

429
523
650

386
469
584

3 1/2
4
4

135-22-3777
135-22-3778

    1000
    1250

507
633

2.52
2.68

2.62
2.78

140
140

3.56
3.56

2.93
3.09

74.4
78.5

4433
4954

4904
5716

759
853

683
768

5
5

135-22-3779

    1500

761

2.80

2.90

140

3.56

3.21

81.5

5381

6034

936

842

5

Authorized Stock Item. Available from our Customer Service Centers.

Additional conductor sizes are available.

Ampacities

(1) Ampacities are in accordance with ICEA P-53-426 for three single 69kV conductors directly buried or in individual ducts underground, 36" deep with 7 1/2" spacing between conductors, 105°C maximum conductor temperature, 25°C earth temperature, soil resistivity of 90 Rho, 100% load factor, and open circuit shields.

(2) Recommended size of rigid nonmagnetic or nonmetallic conduit for a single conductor based on 53% maximum fill.

* Minimum conductor size per AEIC CS-6 is 500 kcmil.

C/00090217
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