MEDIUM VOLTAGE CABLE
N2XSERY – YJV32 is a three-core armoured medium voltage cable with copper conductors, XLPE insulation, a copper tape screen on each core, galvanized steel wire armour (SWA) and a PVC sheath, built in accordance with IEC 60502-2 for 3.6/6 (7.2) kV to 18/30 (36) kV. In the German-style code, 2X denotes XLPE insulation, SE a copper screen on each core and Y the PVC sheath, while the absence of the letter A indicates copper; YJV32 is the Chinese type code. It withstands external mechanical force and a certain tensile load.
N2XSERY – YJV32 has three individually screened cores laid up with non-hygroscopic fillers, then covered by an extruded PVC separation sheath, a layer of galvanized steel wire armour and a PVC outer sheath. On each core, two extruded semi-conducting layers confine the electrical field within the XLPE insulation, and a copper tape screen forms the earthed metallic layer of that core; the three core screens touch each other along the cable. The XLPE insulation allows a conductor temperature of 90 °C in normal operation and 250 °C during a short circuit.
| Rated Voltage U0/U (Um) | Nominal XLPE Insulation Thickness | Cross-Sections in TDS |
|---|---|---|
| 3.6/6 (7.2) kV | 2.5 mm up to 185 mm², rising to 3.2 mm at 500 mm² and 630 mm² | 3×25 mm² to 3×630 mm² |
| 6/10 (12) kV | 3.4 mm | 3×25 mm² to 3×630 mm² |
| 8.7/15 (17.5) kV | 4.5 mm | 3×25 mm² to 3×630 mm² |
| 12/20 (24) kV | 5.5 mm | 3×35 mm² to 3×630 mm² |
| 18/30 (36) kV | 8.0 mm | 3×50 mm² to 3×630 mm² |
Choose the U0 rating from both the system voltage and the way the system clears earth faults. IEC 60502-2 Table 1 groups systems into Categories A, B and C; on a 17.5 kV system, for instance, 8.7/15 kV cable serves Categories A and B, whereas Category C calls for 12/20 kV cable. Overall diameters and weights in the TDS tab are approximate values that vary with the metallic screen and armour specified; insulation, armour and sheath dimensions are nominal values.
N2XSERY – YJV32 is a screened three-core armoured medium voltage cable with copper conductors, XLPE insulation, copper tape screen on each core, galvanized steel wire armour (SWA) and PVC oversheath, built to IEC 60502-2. The characteristics below follow the voltage, material, thickness and temperature requirements of that standard; per-size dimensions, weights and conductor resistances are given in the TDS tab.
| Applicable Standard | IEC 60502-2 |
|---|---|
| Standard Scope | Extruded-insulation power cables for fixed installations at rated voltages from 6 kV (Um = 7.2 kV) up to 30 kV (Um = 36 kV) |
| Rated Voltage U0/U (Um) | 3.6/6 (7.2), 6/10 (12), 8.7/15 (17.5), 12/20 (24) and 18/30 (36) kV |
| Number of Cores | 3 |
| Conductor | Annealed copper, Class 2 compacted circular to IEC 60228 |
| Nominal Cross-Section Range | 25 mm² to 630 mm²; smallest size depends on rated voltage |
| Conductor Resistance at 20 °C | Not exceeding the IEC 60228 maximum; TDS values follow IEC 60228 Table 2 |
| Conductor and Insulation Screens | Extruded semi-conducting compound |
| Insulation | XLPE, nominal thickness to IEC 60502-2 Table 6 |
| Metallic Screen | Copper tape on each core; core screens in contact |
| Separation Sheath | Extruded PVC separation sheath, used in place of the inner covering, between core screens and armour |
| Armour | Round galvanized steel wires, nominal diameter not less than IEC 60502-2 Table 9 |
| Outer Sheath | PVC (type ST2), black as standard; nominal thickness 0.035D + 1.0 mm, minimum 1.8 mm |
| Maximum Conductor Temperature, Normal Operation | 90 °C |
| Maximum Conductor Temperature, Short Circuit | 250 °C, for a duration of not more than 5 s |
| Installation | Indoors, tunnels, cable trenches, shafts and direct burial |
Please state the rated voltage U0/U (Um), the nominal conductor cross-section, the required metallic screen cross-section or short-circuit rating, the total length and length per drum, the sheath colour if other than black and whether a strippable insulation screen is required.
| No. of Cores and Nominal Cross Section | Nominal Insulation Thickness | Nominal Steel Wire Diameter | Nominal Sheath Thickness | Approx. Overall Diameter | Approx. Weight | Max. D.C. Resistance of Conductor at 20°C |
|---|---|---|---|---|---|---|
| mm² | mm | mm | mm | mm | kg/km | Ω/km |
| 3.6/6(7.2)kV | ||||||
| 3×25 | 2.5 | 2.0 | 2.3 | 41.5 | 3226 | 0.727 |
| 3×35 | 2.5 | 2.5 | 2.4 | 45.1 | 4077 | 0.524 |
| 3×50 | 2.5 | 2.5 | 2.5 | 47.6 | 4649 | 0.387 |
| 3×70 | 2.5 | 2.5 | 2.6 | 51.7 | 5612 | 0.268 |
| 3×95 | 2.5 | 2.5 | 2.7 | 55.8 | 6677 | 0.193 |
| 3×120 | 2.5 | 2.5 | 2.9 | 59.0 | 7712 | 0.153 |
| 3×150 | 2.5 | 2.5 | 3.0 | 62.6 | 8855 | 0.124 |
| 3×185 | 2.5 | 2.5 | 3.1 | 66.5 | 10263 | 0.0991 |
| 3×240 | 2.6 | 3.15 | 3.3 | 73.8 | 13236 | 0.0754 |
| 3×300 | 2.8 | 3.15 | 3.5 | 80.0 | 15661 | 0.0601 |
| 3×400 | 3.0 | 3.15 | 3.8 | 87.7 | 19064 | 0.0470 |
| 3×500 | 3.2 | 3.15 | 4.0 | 96.6 | 23115 | 0.0366 |
| 3×630 | 3.2 | 3.15 | 4.3 | 105.6 | 28144 | 0.0283 |
| 6/10(12)kV | ||||||
| 3×25 | 3.4 | 2.5 | 2.5 | 47.4 | 4091 | 0.727 |
| 3×35 | 3.4 | 2.5 | 2.6 | 49.8 | 4558 | 0.524 |
| 3×50 | 3.4 | 2.5 | 2.7 | 52.5 | 5168 | 0.387 |
| 3×70 | 3.4 | 2.5 | 2.8 | 56.6 | 6157 | 0.268 |
| 3×95 | 3.4 | 2.5 | 2.9 | 60.7 | 7285 | 0.193 |
| 3×120 | 3.4 | 2.5 | 3.0 | 63.7 | 8274 | 0.153 |
| 3×150 | 3.4 | 2.5 | 3.1 | 67.1 | 9407 | 0.124 |
| 3×185 | 3.4 | 2.5 | 3.2 | 71.2 | 10907 | 0.0991 |
| 3×240 | 3.4 | 3.15 | 3.5 | 78.3 | 13926 | 0.0754 |
| 3×300 | 3.4 | 3.15 | 3.6 | 83.4 | 16205 | 0.0601 |
| 3×400 | 3.4 | 3.15 | 3.9 | 90.1 | 19451 | 0.0470 |
| 3×500 | 3.4 | 3.15 | 4.1 | 98.1 | 23369 | 0.0366 |
| 3×630 | 3.4 | 3.15 | 4.3 | 106.9 | 28368 | 0.0283 |
| 8.7/15(17.5)kV | ||||||
| 3×25 | 4.5 | 2.5 | 2.6 | 53.0 | 4695 | 0.727 |
| 3×35 | 4.5 | 2.5 | 2.7 | 55.4 | 5217 | 0.524 |
| 3×50 | 4.5 | 2.5 | 2.8 | 58.1 | 5853 | 0.387 |
| 3×70 | 4.5 | 2.5 | 3.0 | 62.4 | 6906 | 0.268 |
| 3×95 | 4.5 | 2.5 | 3.1 | 66.5 | 8030 | 0.193 |
| 3×120 | 4.5 | 2.5 | 3.2 | 69.5 | 9102 | 0.153 |
| 3×150 | 4.5 | 3.15 | 3.3 | 74.2 | 11048 | 0.124 |
| 3×185 | 4.5 | 3.15 | 3.5 | 78.5 | 12639 | 0.0991 |
| 3×240 | 4.5 | 3.15 | 3.6 | 83.9 | 14820 | 0.0754 |
| 3×300 | 4.5 | 3.15 | 3.8 | 89.2 | 17314 | 0.0601 |
| 3×400 | 4.5 | 3.15 | 4.0 | 95.6 | 20532 | 0.0470 |
| 3×500 | 4.5 | 3.15 | 4.2 | 103.7 | 24575 | 0.0366 |
| 3×630 | 4.5 | 3.15 | 4.5 | 112.7 | 29682 | 0.0283 |
| 12/20(24)kV | ||||||
| 3×35 | 5.5 | 2.5 | 2.9 | 60.7 | 5853 | 0.524 |
| 3×50 | 5.5 | 2.5 | 3.0 | 63.5 | 6507 | 0.387 |
| 3×70 | 5.5 | 2.5 | 3.1 | 67.4 | 7489 | 0.268 |
| 3×95 | 5.5 | 2.5 | 3.2 | 71.6 | 8708 | 0.193 |
| 3×120 | 5.5 | 3.15 | 3.4 | 76.1 | 10666 | 0.153 |
| 3×150 | 5.5 | 3.15 | 3.5 | 79.6 | 11879 | 0.124 |
| 3×185 | 5.5 | 3.15 | 3.6 | 83.6 | 13462 | 0.0991 |
| 3×240 | 5.5 | 3.15 | 3.8 | 89.2 | 15715 | 0.0754 |
| 3×300 | 5.5 | 3.15 | 3.9 | 94.4 | 18203 | 0.0601 |
| 3×400 | 5.5 | 3.15 | 4.2 | 101.0 | 21443 | 0.0470 |
| 3×500 | 5.5 | 3.15 | 4.4 | 109.1 | 25601 | 0.0366 |
| 3×630 | 5.5 | 3.15 | 4.6 | 117.9 | 30717 | 0.0283 |
| 18/30(36)kV | ||||||
| 3×50 | 8.0 | 3.15 | 3.4 | 76.8 | 8964 | 0.387 |
| 3×70 | 8.0 | 3.15 | 3.5 | 80.9 | 10067 | 0.268 |
| 3×95 | 8.0 | 3.15 | 3.7 | 85.1 | 11403 | 0.193 |
| 3×120 | 8.0 | 3.15 | 3.8 | 88.1 | 12571 | 0.153 |
| 3×150 | 8.0 | 3.15 | 3.9 | 91.6 | 13832 | 0.124 |
| 3×185 | 8.0 | 3.15 | 4.0 | 95.6 | 15474 | 0.0991 |
| 3×240 | 8.0 | 3.15 | 4.2 | 101.2 | 17808 | 0.0754 |
| 3×300 | 8.0 | 3.15 | 4.3 | 106.4 | 20306 | 0.0601 |
| 3×400 | 8.0 | 3.15 | 4.6 | 113.0 | 23706 | 0.0470 |
| 3×500 | 8.0 | 3.15 | 4.8 | 121.1 | 27979 | 0.0366 |
| 3×630 | 8.0 | 3.15 | 5.0 | 129.9 | 33220 | 0.0283 |
Product Inquiry
Please send your required cable designation, number of conductors, nominal cross-section, support cable type, rated voltage, packing length, and project standard.
