THE OKONITE COMPANY Product Data
Section 2: Sheet 2
 

COMPACT STRAND
CONSTRUCTION

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Okoguard®-Okolon® Type MV-90

2.4 kV Nonshielded Power Cable
One Okopact® (Compact Stranded)
Copper Conductor/90°C Rating Wet or Dry
For Cable Tray Use-Sunlight Resistant
UL
 

A Uncoated, Okopact (Compact Stranded) Copper Conductor

B Strand Screen-Extruded Semiconducting EPR

C Insulation-Okoguard EPR

D Jacket-Okolon


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 for long, problem free service.
 
Jacket
The Okolon jacket on this cable is a vulcanized chlorosulfonated polyethylene based compound which is mechanically rugged, flame, radiation and oil resistant.
 
Applications
Okoguard-Okolon 2.4 kV cables are heavy duty nonshielded cables designed for use at up to 2.4 kV phase-to-phase in wet or dry locations in accordance with NEC Section 310.6. Okoguard-Okolon nonshielded cables are recommended for power distribution and motor circuits in generating plants and substations; in industrial and commercial buildings. Single conductors may be installed in industrial or commercial occupancies in triplexed or random lay in any raceway or duct in wet or dry locations, or in open runs as permitted by NEC Article 396. Sizes 1/0 AWG and larger, may be installed in cable trays where permitted by NEC Section 392.3.
 

Specifications
Conductor: Annealed uncoated copper compact stranded per ASTM B-496.
 
Strand Screen: Extruded semiconducting EPR strand screen. Meets or exceeds electrical and physical requirements of ICEA S-96-659/NEMA WC71 and UL 1072.
 
Insulation: Meets or exceeds electrical and physical requirements of ICEA S-96-659/NEMA WC71 and UL 1072.

Jacket: Meets or exceeds electrical and physical requirements of ICEA S-96-659/NEMA WC71 for chlorosulfonated polyethylene jackets. UL listed as Type MV-90, sunlight resistant and for use in cable tray in accordance with UL 1072. CSA listed as RW90 (FT4 1/0 and larger) -25°C in accordance with CSA C22.2 No 38. 1/C 2.4 kV non-shielded cables can surface discharge in service when in a random phase spacing or when in contact with grounded surfaces.

Product Features

  • Okoguard cables meet or exceed all recognized industry standards (UL, CSA, NEMA/ICEA, IEEE).
  • 90°C continuous operating temperature.
  • 130°C emergency rating.
  • 250°C short circuit rating.
  • Passes UL and IEEE 383 and 1202 (1/0 and larger) Vertical Tray Flame Test.
  • Sizes 1/0 and larger meet CSA FT4 Vertical Tray Flame Test.
  • Sizes #1 and smaller meet CSA FT1.
  • Excellent corona resistance.
  • Radiation resistant.
  • Exceptional resistance to “treeing”.
  • Stress cones not required.
  • Moisture resistant.
  • Resistant to most oils, acids, and alkalies.
  • Sunlight Resistant.
  • Sizes #6 and #8 AWG are identified as FAA-L-824, 5kV rated.

1-Catalog Number (1)
2-Conductor Size AWG or kcmil
3-Conductor Size -mm2
4-Insulation Thickness - mils
5-Insulation Thickness - mm
6-Jacket Thickness - mils
7-Jacket Thickness - mm
8-Approx. O.D. - Inches
  9-Approx. O.D. - mm
10-Approx. Net Weight lbs./1000’
11-Approx. Ship Weight lbs./1000’
12-Ampacities (2) Conduit in Air
13-Ampacities (3) Underground Duct
14-Ampacities (4) Cable Tray
15-Conduit Size Inches (5)*
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
*114-24-2213
*
114-24-2217
114-24-2219
114-24-2221

8
6
4
2

8.4
13.3
21.2
33.6

125
125
125
125

3.18
3.18
3.18
3.18

80
80
80
80

2.03
2.03
2.03
2.03

0.60
0.63
0.67
0.73

15.1
16.0
17.1
18.6

215
260
328
427

250
295
368
492

55
75
97
130

64
85
110
145




 2
2
2
2
114-24-2223
114-24-2225
114-24-2227
114-24-2229

1
1/0
2/0
3/0

42.4
53.5
67.4
85.0

125
125
125
125

3.18
3.18
3.18
3.18

80
80
80
95

2.03
2.03
2.03
2.41

0.76
0.80
0.88
0.96

19.4
20.3
22.4
24.5

493
580
682
838

558
645
742
908

155
180
205
240

170
195
220
250

— 
195
225
260

2 1/2
2
1/2
2
1/2
3

114-24-2231
114-24-2233
114-24-2237

 4/0
250
350

107.0
127.0
177.0

125
140
140

3.18
3.56
3.56

95
110
110

2.41
2.79
2.79

0.97
1.08
1.18

24.6
27.4
29.9

991
1198
1555

1086
1293
1660

280
315
385

290
320
385

300
335
410

3
3
3
1/2

114-24-2243
114-24-2249
114-24-2251

500
750
1000

253.0
380.0
507.0

140
155
155

3.56
3.94
3.94

110
125
125

2.79
3.18
3.18

1.29
1.54
1.70

32.9
39.0
43.0

2075
3034
3891

2205
3224
4141

475
600
690

470
585
670

520
675
805

3 1/2
5
5

* Marked "FAA L-824 5kV Type B"
 
Authorized stock item. Available from our Customer Service Center.

Aluminum Okopact Conductors
(1) Aluminum Okopact conductors are available on special order. .

Ampacities
(2) Ampacities are in accordance with Table 310.73 of the NEC for three single Type MV-90 conductors, or single conductors twisted together (triplexed) and installed in an isolated conduit in air at an ambient temperature of 40°C and a conductor temperature of 90°C.

(3) Ampacities are in accordance with Table 310.77 of the NEC for three single conductors or triplexed cable in one underground raceway, three feet deep with a conductor temperature of 90°C, 100% Load Factor, an ambient earth temperature of 20°C, and thermal resistance (RHO) of 90.

(4) Ampacities based on single Type MV-90 conductors, or single conductors twisted together (triplexed, quadruplexed, etc.), size 1/0 Awg and larger, installed in uncovered cable tray in accordance with Section 392.13 of the NEC at an ambient temperature of 40°C and a conductor temperature rating of 90°C.

In accordance with NEC Section 392.13(B)(1), the ampacities are 75% of the values given in NEC Table 310.69 (copper conductors). Where the cable tray is covered for more than six feet with solid unventilated covers, the ampacities shall not exceed 93% of the values shown above.

Refer to the NEC, IEEE/ICEA-S-135 Power Cable Ampacities, or the Okonite Engineering Data Bulletin for other ambient temperatures, circuit configurations or installation requirements.

(5) Recommended size of rigid or nonmetallic conduit for three conductors based on 40% maximum fill .

*The jam ratio, conduit l.D. to cable O.D. should be checked to avoid possible jamming.

 

G/08040202 
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