XLPE Submarine Cable Systems Attachment to XLPE Land Cable Systems User´s Guide Rev 5 CONTENT XLPE Submarine Cable Systems Current rating for XLPE submarine cable systems............. 3 Current rating for three-core cables.............................. 3 Current rating for single-core cables ............................ 4 Technical data for XLPE submarine cable systems.. ........... 5 Single-core cables with lead sheath.............................. 5 Three-core cables with copper wire screen................... 6 Three-core cables with lead sheath.. ............................. 7 To make sure you have the latest version of this brochure, have a look at www.abb.com/cables 2 XLPE Submarine Cable Systems | ABB CURRENT RATING FOR XLPE SUBMARINE CABLE SYSTEMS The XLPE cable should at least have a conductor cross section adequate to meet the system requirements for power transmission capacity. The cost of energy losses can be reduced by using larger conductor. Load losses in XLPE cables are primarily due to the ohmic losses in the conductor and the metallic screen. XLPE cables can be loaded continuously to a conductor temperature of 90°C. The dielectric losses of XLPE insulation are present also at no load. Those losses depend on the operation voltage applied and shall be considered above 100 kV. Dielectric losses in XLPE cables are lower than for EPR and fluid-filled cables. The current rating of submarine cables follows the same rules as for land cables. However there are some differences: − − Three-core submarine cables usually have steel wire armour. Single-core cables have non-magnetic armour. − − Single-core cables can be laid separated or close. Close laying gives lower losses. Separation eliminates mutual heating but means higher losses in the armour. The induced current in the armour can be high, up to the same value as in the conductor. Single-core cable with lead sheath and wire armour Continuous current ratings for three-core submarine cables are given in Tables 33-34 and for single-core cables in Tables 3536. The continuous current ratings are calculated according to IEC 60287 series of standards and with the following conditions: − − One three-core cable or one three-phase group of single-core cables − − Temperature in sea bed 20°C − − Laying depth in sea bed 1.0 m − − Sea bed thermal resistivity 1.0 K x m/W Rating factors for sea bed temperature - see Tables 7-11 in the brochure “XLPE Land Cable Systems - User’s guide”. Current rating for three-core submarine cables with steel wire armour Table 33 Table 34 10-90 kV XLPE 3-core cables Cross section mm2 Copper conductor A 95 300 120 150 Aluminium conductor 100-300 kV XLPE 3-core cables Copper conductor A Cross section mm2 Aluminium conductor A A 235 300 530 430 340 265 400 590 485 375 300 500 655 540 185 420 335 630 715 600 240 480 385 800 775 660 300 530 430 1000 825 720 400 590 485 500 655 540 630 715 600 800 775 660 1000 825 720 Three-core cable with optic fibers, lead sheath and wire armour ABB | XLPE Submarine Cable Systems 3 CURRENT RATING FOR XLPE SUBMARINE CABLE SYSTEMS Current rating for single-core submarine cables Table 35 Table 36 Rated voltage 10 - 90 kV Cross section Cu conductor Wide spacing mm2 A 95 Note Note Note Note Rated voltage 100 - 420 kV Close spacing Cross section Cu conductor Wide spacing A mm2 A A 410 315 185 580 445 120 465 355 240 670 505 150 520 395 300 750 560 185 585 435 400 845 620 240 670 495 500 950 690 300 750 545 630 1065 760 400 840 610 800 1180 830 500 940 670 1000 1290 895 630 1050 740 800 1160 805 1000 1265 870 Close spacing 1: Calculations were performed assuming single layer of 5 mm copper armour wire. 2: Aluminium cables (conductor made of aluminum and armouring made of aluminium alloy) will have a rating of 75 to 80 % for the same conductor area. 3: The rating data given in the above tables should be regarded as indicative only. 4: Cross sections larger than 1000 mm2 can be offered on request. 4 XLPE Submarine Cable Systems | ABB TECHNICAL DATA FOR XLPE SUBMARINE CABLE SYSTEMS Single-core cables with lead sheath Crosssection of conductor Diameter of conductor Insulation thickness Diameter over insulation Lead sheath thickness Outer diameter of cable Cable weight (Aluminium) Cable weight (Copper) Capacitance Charging current per phase at 50 Hz Inductance mm2 mm mm mm mm mm kg/m kg/m µF/km A/km mH/km 500 26.2 24.0 77.6 2.9 111.0 19.1 29.3 0.14 5.8 1.42 630 29.8 23.0 79.2 3.0 112.8 20.0 31.2 0.16 6.4 1.40 800 33.7 23.0 83.1 3.1 117.5 21.9 34.5 0.17 6.9 1.37 1000 37.9 23.0 87.3 3.1 121.9 23.5 37.7 0.19 7.4 1.35 1200 41.2 23.0 90.6 3.1 125.2 24.8 40.4 0.20 7.8 1.33 1400 44.4 23.0 93.8 3.1 128.6 26.1 43.2 0.21 8.2 1.32 1600 47.4 23.0 96.8 3.1 131.8 27.5 46.0 0.22 8.6 1.31 Table 37 Single-core cables, nominal voltage 220 kV (Um = 245 kV) Table 38 Single-core cables, nominal voltage 275 kV (Um = 300 kV) 500 26.2 26.0 81.6 3.0 115.2 20.5 31.1 0.14 6.8 1.42 630 29.8 24.0 81.2 3.0 114.8 20.6 31.8 0.16 7.7 1.40 800 33.7 24.0 85.1 3.1 119.5 22.5 35.2 0.17 8.3 1.37 1000 37.9 24.0 89.3 3.1 123.9 24.1 38.4 0.18 9.0 1.35 1200 41.2 24.0 92.6 3.1 127.4 25.5 41.6 0.19 9.5 1.33 1400 44.4 24.0 95.8 3.1 130.6 26.8 44.4 0.20 10.0 1.32 1600 47.4 24.0 98.8 3.1 133.8 28.1 47.2 0.21 10.4 1.31 630 29.8 28.0 89.2 3.1 123.4 23.3 35.2 0.14 8.8 1.40 Table 39 Single-core cables, nominal voltage 330 kV (Um = 362 kV) 800 33.7 27.0 91.1 3.1 125.9 24.3 37.5 0.15 9.7 1.37 1000 37.9 26.0 93.3 3.1 128.1 25.3 39.9 0.17 10.7 1.35 1200 41.2 25.0 94.6 3.1 129.4 26.1 42.0 0.18 11.1 1.33 1400 44.4 25.0 97.8 3.1 132.8 27.4 44.9 0.19 11.6 1.32 1600 47.4 25.0 100.8 3.1 135.8 28.7 47.7 0.20 12.1 1.31 630 29.8 32.0 Table 40 Single-core cables, nominal voltage 400 kV (Um = 420 kV) 98.2 3.1 132.8 26.1 38.8 0.13 9.6 1.40 800 33.7 30.0 98.1 3.1 133.1 26.5 40.2 0.15 10.7 1.37 1000 37.9 29.0 100.3 3.1 135.3 27.5 42.6 0.16 11.7 1.35 1200 41.2 27.0 99.6 3.1 134.6 27.7 44.0 0.18 12.9 1.33 1400 44.4 27.0 102.8 3.1 138.0 29.0 46.9 0.19 13.5 1.32 1600 47.4 27.0 105.8 3.1 141.0 30.4 49.7 0.19 14.1 1.31 ABB | XLPE Submarine Cable Systems 5 TECHNICAL DATA FOR XLPE SUBMARINE CABLE SYSTEMS Three-core cables with copper wire screen Crosssection of conductor Diameter of conductor Insulation thickness Diameter over insulation Cross section of screen Outer diameter of cable Cable weight (Aluminium) Cable weight (Copper) Capacitance Charging current per phase at 50 Hz Inductance mm2 mm mm mm mm2 mm kg/m kg/m µF/km A/km mH/km Table 41 Three-core cables, nominal voltage 10 kV (Um = 12 kV) 70 9.6 3.4 18.8 16 80.7 13.7 15.0 0.31 0.6 0.41 95 11.2 3.4 20.4 16 84.2 14.4 16.2 0.34 0.6 0.39 120 12.6 3.4 21.8 16 87.2 14.9 17.2 0.37 0.7 0.37 150 14.2 3.4 23.4 16 90.6 15.7 18.5 0.40 0.7 0.36 185 15.8 3.4 25.0 16 94.1 16.5 19.9 0.44 0.8 0.35 240 18.1 3.4 27.3 16 99.1 17.7 22.2 0.48 0.9 0.33 300 20.4 3.4 29.6 16 104.0 18.9 24.5 0.53 1.0 0.32 400 23.2 3.4 32.4 16 110.1 20.8 28.2 0.59 1.1 0.31 500 26.2 3.4 35.8 16 117.4 22.7 32.1 0.66 1.2 0.30 70 9.6 5.5 23.0 16 89.8 15.1 16.4 0.21 0.8 0.44 Table 42 Three-core cables, nominal voltage 20 kV (Um = 24 kV) 95 11.2 5.5 24.6 16 93.2 15.8 17.6 0.23 0.9 0.41 120 12.6 5.5 26.0 16 96.2 16.6 18.8 0.25 0.9 0.40 150 14.2 5.5 27.6 16 99.7 17.3 20.1 0.27 1.0 0.38 185 15.8 5.5 29.2 16 103.2 18.2 21.6 0.29 1.1 0.37 240 18.1 5.5 31.5 16 108.1 19.3 23.7 0.32 1.2 0.35 300 20.4 5.5 33.8 16 113.1 20.6 26.2 0.35 1.3 0.34 400 23.2 5.5 36.6 16 119.1 22.5 29.9 0.39 1.4 0.33 500 26.2 5.5 40.0 16 126.5 24.5 33.8 0.43 1.6 0.32 630 29.8 5.5 43.6 16 134.3 26.7 38.5 0.48 1.7 0.31 Table 43 Three-core cables, nominal voltage 30 kV (Um = 36 kV) 70 9.6 8.0 28.0 16 100.6 16.9 18.2 0.16 0.9 0.46 95 11.2 8.0 29.6 16 104.0 17.7 19.5 0.18 1.0 0.44 120 12.6 8.0 31.0 16 107.0 18.4 20.7 0.19 1.0 0.42 150 14.2 8.0 32.6 16 110.5 19.3 22.1 0.21 1.1 0.41 185 15.8 8.0 34.2 16 114.0 20.1 23.6 0.22 1.2 0.39 240 18.1 8.0 36.5 16 118.9 21.4 25.9 0.24 1.3 0.38 300 20.4 8.0 38.8 16 123.9 22.6 28.2 0.26 1.4 0.36 400 23.2 8.0 41.6 16 129.9 24.6 32.0 0.29 1.6 0.35 500 26.2 8.0 45.0 16 137.3 26.7 36.0 0.32 1.7 0.34 630 29.8 8.0 48.6 16 145.1 29.2 40.9 0.35 1.9 0.32 800 33.7 8.0 52.5 16 154.4 32.2 47.2 0.38 2.1 0.31 6 XLPE Submarine Cable Systems | ABB TECHNICAL DATA FOR XLPE SUBMARINE CABLE SYSTEMS Three-core cables with lead sheath Crosssection of conductor Diameter of conductor Insulation thickness Diameter over insulation Lead sheath thickness Outer diameter of cable Cable weight (Aluminium) Cable weight (Copper) Capacitance Charging current per phase at 50 Hz Inductance mm2 mm mm mm mm mm kg/m kg/m µF/km A/km mH/km Table 44 Three-core cables, nominal voltage 45 kV (Um = 52 kV) 95 11.2 8.0 29.6 1.3 109.0 19.1 20.8 0.18 1.5 0.43 120 12.6 8.0 31.0 1.3 112.0 20.0 22.3 0.19 1.6 0.42 150 14.2 8.0 32.6 1.4 116.0 21.6 24.4 0.21 1.6 0.40 185 15.8 8.0 34.2 1.4 119.0 22.7 26.2 0.22 1.8 0.39 240 18.1 8.0 36.5 1.5 124.0 25.0 29.5 0.24 2.0 0.37 300 20.4 8.0 38.8 1.6 130.0 27.3 32.9 0.26 2.2 0.36 400 23.2 8.0 41.6 1.7 136.0 30.4 37.9 0.29 2.3 0.35 500 26.2 8.0 45.0 1.8 144.0 33.8 43.2 0.32 2.6 0.33 630 29.8 8.0 48.6 1.9 152.0 37.8 49.7 0.35 2.9 0.32 800 33.7 8.0 52.5 2.1 162.0 43.5 58.6 0.38 3.1 0.31 1000 37.9 8.0 57.3 2.2 173.0 49.3 68.1 0.42 3.5 0.30 Table 45 Three-core cables, nominal voltage 66 kV (Um = 72.5 kV) 95 11.2 9.0 31.6 1.3 113.0 19.8 21.6 0.17 2.0 0.44 120 12.6 9.0 33.0 1.4 116.0 21.6 23.8 0.18 2.1 0.43 150 14.2 9.0 34.6 1.4 120.0 22.9 25.7 0.19 2.3 0.41 185 15.8 9.0 36.2 1.4 124.0 24.5 28.0 0.20 2.4 0.40 240 18.1 9.0 38.5 1.6 129.0 26.8 31.3 0.22 2.6 0.38 300 20.4 9.0 40.8 1.6 134.0 28.7 34.3 0.24 2.8 0.37 400 23.2 9.0 43.6 1.7 141.0 31.7 39.2 0.26 3.1 0.35 500 26.2 9.0 47.0 1.9 149.0 36.0 45.4 0.29 3.5 0.34 630 29.8 9.0 50.6 2.0 157.0 40.1 52.0 0.32 3.7 0.33 800 33.7 9.0 54.5 2.1 167.0 45.1 60.1 0.35 4.1 0.32 1000 37.9 9.0 59.3 2.3 178.0 51.8 70.7 0.38 4.6 0.31 185 15.8 16.0 50.2 2.0 156.0 37.4 40.9 0.14 2.8 0.46 240 18.1 15.0 50.5 2.0 157.0 38.0 42.5 0.15 3.0 0.43 300 20.4 14.0 50.8 2.0 157.0 38.5 44.1 0.17 3.5 0.41 400 23.2 13.0 51.6 2.0 159.0 39.7 47.2 0.20 3.9 0.38 500 26.2 13.0 55.0 2.1 167.0 43.6 53.0 0.22 4.3 0.37 630 29.8 13.0 58.6 2.3 176.0 48.8 60.7 0.24 4.7 0.36 800 33.7 13.0 62.5 2.4 185.0 54.4 69.5 0.26 5.2 0.34 1000 37.9 13.0 67.3 2.6 197.0 61.6 80.5 0.28 5.6 0.33 Table 46 Three-core cables, nominal voltage 110 kV (Um = 123 kV) ABB | XLPE Submarine Cable Systems 7 TECHNICAL DATA FOR XLPE SUBMARINE CABLE SYSTEMS Three-core cables with lead sheath Crosssection of conductor Diameter of conductor Insulation thickness Diameter over insulation Lead sheath thickness Outer diameter of cable Cable weight (Aluminium) Cable weight (Copper) Capacitance Charging current per phase at 50 Hz Inductance mm2 mm mm mm mm mm kg/m kg/m µF/km A/km mH/km Table 47 Three-core cables, nominal voltage 132 kV (Um = 145 kV) 185 15.8 18.0 54.2 2.1 165.0 41.4 44.9 0.13 3.0 0.47 240 18.1 17.0 54.5 2.1 166.0 41.8 46.3 0.14 3.4 0.44 300 20.4 16.0 54.8 2.1 167.0 42.4 48.0 0.16 3.8 0.42 400 23.2 15.0 55.6 2.1 168.0 43.6 51.1 0.18 4.3 0.40 500 26.2 15.0 59.0 2.3 176.0 48.6 58.0 0.20 4.6 0.38 630 29.8 15.0 62.6 2.4 185.0 53.3 65.2 0.21 5.1 0.37 800 33.7 15.0 66.5 2.5 194.0 59.0 74.0 0.23 5.6 0.36 1000 37.9 15.0 71.3 2.7 206.0 66.6 85.4 0.25 6.1 0.35 Table 48 Three-core cables, nominal voltage 150 kV (Um = 170 kV) 240 18.1 21.0 62.5 2.4 184.0 51.1 55.5 0.13 3.4 0.47 300 20.4 20.0 62.8 2.4 185.0 51.7 57.3 0.14 3.7 0.44 400 23.2 19.0 63.6 2.4 187.0 52.9 60.5 0.15 4.1 0.42 500 26.2 18.0 65.0 2.5 190.0 55.7 65.1 0.17 4.7 0.40 630 29.8 17.0 66.6 2.5 194.0 57.8 69.7 0.19 5.3 0.38 800 33.7 17.0 70.5 2.7 204.0 64.7 79.8 0.21 5.7 0.37 1000 37.9 17.0 75.3 2.8 215.0 71.6 90.5 0.23 6.3 0.36 500 26.2 24.0 77.6 2.9 219.0 71.8 81.3 0.14 5.7 0.43 630 29.8 23.0 79.2 3.0 224.0 74.9 86.7 0.16 6.4 0.41 800 33.7 23.0 83.1 3.1 234.0 80.2 95.3 0.17 6.9 0.40 1000 37.9 23.0 87.3 3.1 241.0 85.1 104.0 0.19 7.4 0.38 Table 49 Three-core cables, nominal voltage 220 kV (Um = 245 kV) Table 50 Three-core cables, nominal voltage 275 kV (Um = 300 kV) 500 26.2 26.0 81.6 2.9 229.0 75.3 84.7 0.14 6.8 0.44 630 29.8 24.0 81.2 3.0 228.0 77.0 88.9 0.16 7.7 0.42 800 33.7 24.0 85.1 3.1 237.0 82.5 97.6 0.17 8.3 0.40 1000 37.9 24.0 89.3 3.1 247.0 87.4 106.3 0.18 9.0 0.39 8 XLPE Submarine Cable Systems | ABB Notes ABB | XLPE Submarine Cable Systems 9 Notes 10 XLPE Submarine Cable Systems | ABB ABB’s high voltage cable unit in Sweden Phone: +46 455 556 00 Fax: +46 455 556 55 E-Mail: 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