NEK606 Water Blocked Offshore & Marine Cables  

NEK606 Water Blocked Offshore & Marine Cables

Water Blocked P4 or P4/P11 RFOU/TFOU 8.7/15KV

Applications

  • These cables are partially water blocked, flame retardant, low smoke, halogen free and mud resistant, used for fixed installation for medium voltage power.

Standards

  • IEC 60092-353 IEC 60092-351
    IEC 60092-359 IEC 60332-1
    IEC 60332-3-22 IEC 60754-1,2
    IEC 61034-1,2 NEK 606:2004
    VG 95218 part 29  

?Water Blocked P4 or P4/P11 RFOU/TFOU 8.7/15KV

Construction

  • l???? Conductors: Circular tinned annealed stranded copper to IEC 60228 class 2.
    l???? Conductor Screen: Semi conducting material.
    l???? Insulation: Halogen-free EPR. XLPE can be offered as an option (for TFOU cable).
    l???? Insulation Screen: Semi conducting material and tinned copper wire braid.
    l???? Filler: Water blocking fillers, if required.
    l???? Bedding: Halogen free compound, PETP wrapping tape will be applied over the bedding, if required.
    l???? Armour: Tinned copper wire braid, PETP wrapping tape will be applied over the braiding, if required.
    l???? Water Blocking Elements: Water blocking tape and strings for providing longitudinal water tightness.
    l???? Inner Sheath: Halogen free thermosetting compound, SHF2 (for TYPE P4), or halogen free mud resistant thermosetting compound, SHF MUD (for TYPE P4/P11), coloured red.
    l???? Outer Sheath: Polyurethane for providing transversal water tightness, PE is optional,but can not meet low smoke standard.

Electrical Characteristics

  • Nominal Cross Section Area mm2 25 35 50 70 95 120
    Nominal Conductor Diameter mm 6.5 7.4 8.7 10.3 12.2 13.8
    Maximum DC Resistant@20˚C O/km 0.734 0.529 0.391 0.27 0.195 0.154
    Continuous Current Rating@45˚C1 Core A 127 157 196 242 293 339
    Continuous Current Rating@45˚C3 Core A 89 110 137 169 205 237
    Short Circuit Current 1s A 3580 5010 7150 10020 13590 17170
    Operating Voltage KV 8.7/15 8.7/15 8.7/15 8.7/15 8.7/15 8.7/15
  • Nominal Cross Section Area mm2 150 185 240 300 400 500 630
    Nominal Conductor Diameter mm 15.1 17.0 19.6 21.9 24.5 27.5 32.3
    Maximum DC Resistant@20˚C O/km 0.126 0.1 0.0762 0.0607 0.0475 0.0369 0.0286
    Continuous Current Rating@45˚C1 Core A 389 444 522 601 690 780 890
    Continuous Current Rating@45˚C3 Core A 272 311 365 421 483 546 623
    Short Circuit Current 1s A 21460 26470 34340 42930 57230 71540 90140
    Operating Voltage KV 8.7/15 8.7/15 8.7/15 8.7/15 8.7/15 8.7/15 8.7/15

Ambient Temperature Correction Factors

  • Ambient Temperature Correction Factors 35 40 45 50 55 60 65 70 75 80
    Rating Factor 1.1 1.05 1.0 0.94 0.88 0.82 0.74 0.67 0.58 0.47

Mechanical and Thermal Properties

  • Bending Radius :15×OD (during installation); 9×OD (fixed installed).
  • Temperature Range : -20˚C ~ +90˚C.

Dimensions and Weight

Construction No. of cores×Cross section

(mm2)

Nominal Insulation Thickness mm

Nominal Bedding Thickness

mm

Nominal Inner Sheath Thickness

mm

Nominal Outer Sheath Thickness

mm

Nominal Overall Diameter

mm

Nominal Weight

kg/km

1×150 4.5 2 1.5 1.4 40.9±2 3087
1×185 4.5 2 1.5 1.4 43.4±2 3722
1×240 4.5 2.1 1.6 1.6 46.6±2 4431
1×300 4.5 2.2 1.7 1.6 49.5±2 5324
1×400 4.5 2.4 1.8 1.6 53.4±2 6048
1×500 4.5 2.5 1.8 1.6 56.8±2 7224
1×630 4.5 2.6 1.9 1.6 61.1±2 8883
3×25 4.5 2.6 1.9 1.2 57.7±2 4961
3×35 4.5 2.7 2 1.2 59.9±2 5476
3×50 4.5 2.8 2 1.2 63.0±2 6258
3×70 4.5 2.9 2.1 1.2 66.8±2 7387
3×95 4.5 3.1 2.2 1.4 71.5±2 8789
3×120 4.5 3.2 2.3 1.4 75.5±2 10232
3×150 4.5 3.4 2.4 1.4 79.6±2 11697
3×185 4.5 3.6 2.6 1.4 87.0±2 14165
3×240 4.5 3.8 2.7 1.6 93.8±2 16653
3×300 4.5 4 2.9 1.6 99.8±2 19236