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XLPE electrical cable voltage test and specifications

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  • Power Cable

    Power Cable

    Power cables are mainly used for power transmission and distribution purpose. It is an assembly of one or more individually insulated electrical conductors, usually held together with an overall sheath. The assembly is used for transmission and distribution of electrical power. Electrical power cables may be installed as permanent wiring within buildings, buried in the ground and run overhead or exposed.……Including: rubber cable, welding cable, URD cable, XLPE insulated power calbe etc.

  • Bare Overhead Conductor

    Bare Overhead Conductor

    Bare Overhead Conductors are used in overhead transmission and distribution network applications.They are also used for un-insulated hook ups, jumpers, grounding conductors and other applications. Our Conductors conform to ASTM, IEC, BS, BS EN and DIN standards.…… Including: AAC conductor, AAAC conductor, ACSR conductor, ACAR conductor, AACSR conductor, etc.

  • Aerial Bundled Cable

    Aerial Bundled Cable

    Aerial bundled cables (also aerial bundled conductors or simply ABC) are overhead power lines using several insulated phase conductors bundled tightly together, usually with a bare neutral conductor. Our abc calbe conform to ASTM, IEC, SANS standards.……Including: abc cables, cvered line wire, service drop wire etc.

    • xlpe electrical cable

    XLPE power cable because its electrical properties and heat resistance are good, transmission capacity of large, light structure, easy bending, fittings and simple, convenient installation and laying without drop height restrictions, especially no oil leakage and cause fire risk, so receive wide range of users, and continue to development the high-voltage, high voltage areas, showing a gradually replace the trend of oil paper cable.
     
    Cross linked polyethylene cable structure:
     
    1- core; 2- cross linked polyethylene insulation; 3- semi conductive layer; 4- copper shield; 5- package; 6- outer sheath
     
    Cross – linked polyethylene insulated wire and cable has improved the function of PVC insulated wire and cable. PVC insulated cables for a long time working temperature can up 70℃, and the long time of the cross-linked polyethylene insulated wire agreed to work temperature up to 90℃. At temperature 130℃ adhere to the flexibility state, the relative of the same cross-section of PVC insulated wire, it can improve the flow rate of about 25%. Thus, in practical application, the cross section of the cross – linked polyethylene insulated wire can replace the PVC insulated wire.
     
    The proportion of XLPE insulation is 0.92g/cm3. And the proportion of PVC insulation is 1.35g/cm3. Because XLPE insulated inductive function than PVC insulation is strong, according to the national standard, cross-linked polyethylene insulation thickness is thinner than the polyvinyl chloride insulation, therefore, xlpe electrical cable than PVC insulated wire weight is light, diameter is smaller, device convenient laying, fittings simple, widely used.
     
    Precisely because of the cross-linked polyethylene insulated wire has more advantages than PVC insulated cables. It has simple structure, light weight, good heat resistance, strong load capacity, no melting, chemical corrosion resistance, high mechanical strength, and has been widely recognized by users.
     
    Test voltage of DC voltage (kV) of xlpe electrical cables:
     
    Cable rated voltage:
     
    U0 / U: 1.8 / 3 / 6 3.6 6 / 6 6 / 10 8.7/10 21 / 35 26/35 48 / 66 64 / 110 127/220
     
    DC voltage test: 11 18 25 25 37 63 78 144 192 305
     
     
    The requirements for the test results are:
     
    1) under the action of test voltage, 5min does not breakdown.
     
    2) the leakage current when the pressure 8min, is not greater than the leakage current of withstand voltage 1min.
     
    xlpe electrical cable specifications:

    YLV,YJLV 0.6/1KV
    Nominal cross section Nominal thickness of insulation
    (mm)    		 Approximate diameter Finished product approximate weight The environment temperature is 25°C,  allow the closure laying in the air The environment temperature is 25°C, 
    allow the closure quantity
    buried soil thermal resistance coefficient
    ( °C cm/w)
    Cu Al Cu Al Cu Al
    1.5 0.7 5.58 66 57 35 30 47 34
    2.5 0.7 5.98 78 63 43 35 63 45
    4.0 0.7 6.45 102 77 57 38 82 60
    6.0 0.7 6.96 127 90 72 47 101 76
    100 0.7 8.25 183 119 99 62 135 102
    16 0.7 9.30 253 149 131 117 175 135
    25 0.9 11.76 358 199 177 148 225 174
    35 0.9 12.90 466 245 218 181 272 208
    50 1.0 14.50 620 312 266 218 323 247
    70 1.1 16.40 818 386 338 280 397 307
    95 1.1 18.30 1098 500 416 344 477 367
    120 1.2 20.07 1349 595 507 401 545 418
    150 1.4 22.08 1628 703 581 457 614 471
    185 1.6 24.30 2011 848 696 530 695 535
    240 1.7 27.16 2589 1064 818 646 805 631
    300 1.8 29.70 3216 1305 943 744 913 717
    400 2.0 33.27 4088 1641 1108 879 1044 827
    500 2.2 37.40 5109 2024 1246 990 1217 934
    2×2.5 0.7 10.8 140 109 37 30 54 38
    2×4 0.7 11.7 192 143 48 32 70 51
    2×6 0.7 12.7 245 171 61 40 86 65
    2×10 0.7 15.3 362 234 84 53 115 87
    2×16 0.7 17.4 514 306 113 99 149 115
    2×25 0.9 20.7 734 411 150 126 191 148
    2×35 0.9 23.0 968 520 185 154 231 177
    2×50 1.0 20.4 1190 555 226 185 275 210
    2×70 1.1 22.1 1591 707 287 238 337 261
    2×95 1.1 26.0 2117 923 354 292 405 312
    2×120 1.2 29.0 2617 111 431 341 463 355
    2×150 1.4 32.2 3239 1361 494 388 522 400
    2×185 1.6 35.6 3965 1651 592 451 591 455
    2×240 1.7 39.6 5126 2122 695 549 684 536
    2×300 1.8 42.8 6312 2636 802 632 776 609
                     
    3×1.5 0.7 10.4 10.4 118 25 21 33 24
    3×2.5 0.7 11.3 11.3 141 30 25 44 32
    3×4 0.7 12.3 12.3 179 40 27 57 42
    3×35 0.9 24.4 1253 581 153 127 190 145
    3×50 10 25.5 1728 776 186 153 226 173
    3×70 1.1 26.8 2323 998 237 196 278 215
    3×95 1.1 30.0 3108 1316 291 241 334 257
    3×120 1.2 33.4 3852 1594 355 281 382 293
    3×150 1.4 37.6 4779 1961 4047 320 430 330
    3×185 1.6 41.8 5876 2405 487 371 487 375
    3×240 1.7 46.6 7540 3042 573 452 564 442
    3×300 1.8 50.6 9305 3688 660 521 639 502
                     
    3×4 1×25 0.7 12.9 291 202 38 25 54 40
    3×6 1×4 0.7 14.1 391 255 47 31 66 50
    3×10 1×6 0.7 16.8 567 338 65 41 89 67
    3×16 1×10 0.7 19.4 885 474 86 77 115 89
    3×25 1×16 0.9 23.1 1194 603 117 97 148 115
    3×35 1×16 0.9 25.1 1489 711 144 119 179 137
    3×50 1×25 1.0 26.8 2032 918 175 143 212 163
    3×70 1×35 1.1 30.6 2689 1140 223 184 261 202
    3×95 1×50 1.1 35.6 3608 1499 274 227 314 242
    3×120 1×70 1.2 38.5 4564 1864 334 264 359 275
    3×150 1×70 1.4 42.6 5474 2214 383 301 404 310
    3×185 1×95 1.6 47.2 6811 2742 458 349 458 352
    3×240 1×120 1.7 53.6 8723 3472 539 425 530 416
    3×300 1×150 1.8 58.1 10843 4286 621 490 601 472
                     
    4×1.5 0.7 10.3 166 128 22 18 30 21
    4×2.5 0.7 11.3 219 156 27 22 40 28
    4×4 0.7 12.4 362 263 36 24 52 38
    4×6 0.7 13.7 402 254 45 30 64 48
    4×10 0.7 16.8 617 361 62 39 85 64
    4×16 0.7 19.3 901 484 83 74 110 85
    4×25 0.9 23.4 1282 635 112 93 142 110
    4×35 0.9 26.1 1688 792 137 114 171 131
    4×50 1.0 26.6 2278 1008 168 137 203 156
    4×70 1.1 30.5 3064 1298 213 176 250 193
    4×95 1.1 33.8 4096 1707 262 217 300 231
    4×120 1.2 37.5 5080 2069 319 252 343 263
    4×150 1.4 42.1 6320 2563 366 288 387 297
    4×185 1.6 46.7 7738 3110 438 333 438 337
    4×240 1.7 52.0 10046 4049 515 407 507 340
    4×300 1.8 57.5 12459 4969 594 468 575 452

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