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IEC60502-2 Single core XLPE Insulation medium voltage electrical cable up to 36kv
Compliances
Application
International standard single-core medium-voltage cables are usually used in power transmission and distribution systems to transmit medium-voltage electrical energy. Such cables can be used for power distribution in industrial, commercial and residential areas, as well as for power transmission in distributed generation systems. Specific application scenarios include but are not limited to:
Industrial use: power transmission in factories, mines, manufacturing and other fields.
Building use: power distribution in commercial buildings and residential areas.
Distributed power generation system: power transmission from distributed energy systems such as solar power generation and wind power generation.
International standard single-core medium-voltage cables can also be used in some special occasions, such as power transmission in underground tunnels, subways, underground power facilities and other underground environments.
These are just some common application scenarios. In fact, international standard single-core medium-voltage cables can be applied to various occasions requiring medium-voltage power transmission. If you have specific application scenarios or other related questions
Standard
IEC 60502 Part 1(1.8/3KV)
IEC 60502 Part 2(3.6/6KV to 18/30KV
IEC60228
IEC 60502 Part 2(3.6/6KV to 18/30KV
IEC60228
Structure
| 1 | Conductor | Aluminum or Copper |
| According to IEC60228 | ||
| 2 | Conductor Screen | semi-conducting cross-linkable |
| 3 | Insulation | XLPE cross-linked polyethylene |
| natural color | ||
| 4 | Insulaton Screen | semi-conducting cross-linkable |
| 5 | Separation Sheath | Black PVC |
| 6 | Armour | Aluminum wire |
| 7 | Over Sheath | Red PVC or as request |
Insulation Thickness
| Nom. Cross | XLPE Insulation Thickness | ||||
| Section Area | 3.8/6.6KV (Um=7.2KV) | 6.35/11KV (Um=12KV) | 8.7/15KV(Um=17.5KV) | 12.7/22KV(Um=24KV) | 19/33KV(Um=36KV) |
| mm² | mm | mm | mm | mm | mm |
| 70 – 185 | 2.5 | 3.4 | 4.5 | 5.5 | 8 |
| 240 | 2.6 | 3.4 | 4.5 | 5.5 | 8 |
| 300 | 2.8 | 3.4 | 4.5 | 5.5 | 8 |
| 400 | 3 | 3.4 | 4.5 | 5.5 | 8 |
| Above 500 | 3.2 | 3.4 | 4.5 | 5.5 | 8 |
Total Cross Section and Max. DC Resistance of the screen
Table 2a. Total Cross Section and Max. DC Resistance of Copper Wire Screen
| Nominal Cross- | Total Cross Section | Max. DC Resistance of Copper Wire Screen at 20℃ | ||||
| Section of Cables mm² | 3.8/6.6KV (Um=7.2KV) | 6.35/11KV (Um=12KV) | 8.7/15KV (Um=17.5KV) | 12.7/22KV (Um=24KV) | 19/33KV (Um=36KV) | |
| mm² | mm² | Ω | ||||
| 70 | 16 | 16 | 16 | 16 | 16 | 1.19 |
| 95 | 16 | 16 | 16 | 16 | 16 | 1.19 |
| 120 | 16 | 16 | 16 | 16 | 16 | 1.19 |
| 150 | 25 | 25 | 25 | 25 | 25 | 0.759 |
| 185 | 25 | 25 | 25 | 25 | 25 | 0.759 |
| 240 | 25 | 25 | 25 | 25 | 25 | 0.759 |
| 300 | 25 | 25 | 25 | 25 | 25 | 0.759 |
| 400 | 35 | 35 | 35 | 35 | 35 | 0.271 |
| 500 | 35 | 35 | 35 | 35 | 35 | 0.217 |
| 630 | 35 | 35 | 35 | 35 | 35 | 0.271 |
Single Core 18/30KV (Um=36KV) Dimensional Data
| Unarmoured Cables | Aluminium Wire Armoured Cables | ||||||||||||
| Nom. Cross- Section Area | Copper | Copper Wire Screen Area* | Approx. Weight | Approx. Weight | |||||||||
| Nom. Insulation Thickness | Tape Screen Area (0.1mm) | Nom. Sheath Thickness | Approx. Overall Diameter | Nom. Bedding Thickness | Armour Wire Size | Nom. Sheath Thickness | Approx. Overall Diameter | ||||||
| CU | AL | CU | AL | ||||||||||
| mm² | mm | mm² | mm² | mm | mm | kg/km | mm | mm | mm | mm | kg/km | ||
| 50 | 8 | 11.2 | 16 | 2 | 31 | 1250 | 960 | 1.2 | 2 | 2.2 | 38 | 1910 | 1640 |
| 70 | 8 | 11.9 | 16 | 2 | 34 | 1510 | 1090 | 1.2 | 2 | 2.3 | 41 | 2240 | 1820 |
| 95 | 8 | 12.7 | 16 | 2.1 | 35 | 1830 | 1240 | 1.2 | 2 | 2.3 | 42 | 2570 | 1980 |
| 120 | 8 | 13.5 | 16 | 2.1 | 37 | 2110 | 1360 | 1.3 | 2.5 | 2.4 | 45 | 3060 | 2310 |
| 150 | 8 | 14.2 | 25 | 2.2 | 38 | 2420 | 1510 | 1.3 | 2.5 | 2.5 | 47 | 3430 | 2510 |
| 185 | 8 | 14.9 | 25 | 2.2 | 40 | 2830 | 1680 | 1.3 | 2.5 | 2.5 | 50 | 3890 | 2720 |
| 240 | 8 | 16.2 | 25 | 2.3 | 43 | 3500 | 1980 | 1.4 | 2.5 | 2.6 | 52 | 4630 | 3120 |
| 300 | 8 | 17.1 | 25 | 2.4 | 45 | 4150 | 2250 | 1.4 | 2.5 | 2.7 | 54 | 5330 | 3430 |
| 400 | 8 | 18.4 | 35 | 2.5 | 49 | 5070 | 2640 | 1.5 | 2.5 | 2.8 | 58 | 6360 | 3930 |
| 500 | 8 | 20 | 35 | 2.6 | 52 | 5945 | 2965 | 1.6 | 2.5 | 2.9 | 61 | 7670 | 4490 |
| 630 | 8 | 21.6 | 35 | 2.7 | 56 | 7445 | 3555 | 1.7 | 2.5 | 3 | 65 | 8870 | 5020 |
| 800 | 8 | 24.2 | 50 | 2.8 | 61 | 9060 | 4180 | 1.9 | 2.5 | 3.2 | 69 | 10790 | 5980 |
| 1000 | 8 | 26.2 | 50 | 2.9 | 65 | 11140 | 4980 | 2 | 2.5 | 3.3 | 73 | 12860 | 6730 |
Single Core 12/20KV (Um=24KV) Dimensional Data
| Unarmoured Cables | Aluminium Wire Armoured Cables | ||||||||||||
| Nom. Cross- Section Area | Copper | Copper Wire Screen Area* | Approx. Weight | Approx. Weight | |||||||||
| Nom. Insulation Thickness | Tape Screen Area (0.1mm) | Nom. Sheath Thickness | Approx. Overall Diameter | CU | AL | Nom. Bedding Thickness | Armour Wire Size | Nom. Sheath Thickness | Approx. Overall Diameter | CU | AL | ||
| mm² | mm | mm² | mm² | mm | mm | kg/km | mm | mm | mm | mm | kg/km | ||
| 25 | 5.5 | 8.1 | 16 | 1.8 | 24 | 721 | 560 | 1.2 | 1.6 | 1.8 | 29 | 1205 | 985 |
| 35 | 5.5 | 8.6 | 16 | 1.8 | 25 | 841 | 620 | 1.2 | 1.6 | 1.9 | 30 | 1355 | 1075 |
| 50 | 5.5 | 9.1 | 16 | 1.8 | 26 | 991 | 690 | 1.2 | 2 | 2 | 33 | 1555 | 1255 |
| 70 | 5.5 | 9.9 | 16 | 1.8 | 28 | 1231 | 800 | 1.2 | 2 | 2.1 | 35 | 1845 | 1425 |
| 95 | 5.5 | 10.7 | 16 | 1.9 | 30 | 1531 | 940 | 1.2 | 2 | 2.1 | 37 | 2165 | 1575 |
| 120 | 5.5 | 11.5 | 16 | 2 | 31 | 1811 | 1050 | 1.2 | 2 | 2.2 | 38 | 2475 | 1735 |
| 150 | 5.5 | 12.1 | 25 | 2 | 33 | 2111 | 1190 | 1.2 | 2 | 2.2 | 40 | 2815 | 1895 |
| 185 | 5.5 | 12.9 | 25 | 2.1 | 35 | 2511 | 1360 | 1.2 | 2 | 2.3 | 42 | 3245 | 2095 |
| 240 | 5.5 | 14.1 | 25 | 2.1 | 38 | 3131 | 1610 | 1.3 | 2.5 | 2.4 | 45 | 4155 | 2585 |
| 300 | 5.5 | 15.1 | 25 | 2.2 | 40 | 3761 | 1860 | 1.3 | 2.5 | 2.5 | 48 | 4805 | 2895 |
| 400 | 5.5 | 16.3 | 35 | 2.3 | 43 | 4651 | 2220 | 1.4 | 2.5 | 2.6 | 52 | 5785 | 3355 |
| 500 | 5.5 | 17.5 | 35 | 2.4 | 46 | 5531 | 2545 | 1.5 | 2.5 | 2.7 | 55 | 6855 | 3855 |
| 630 | 5.5 | 19.5 | 35 | 2.5 | 50 | 6701 | 3100 | 1.5 | 2.5 | 2.9 | 60 | 8385 | 4410 |
| 800 | 5.5 | 22.1 | 50 | 2.6 | 55 | 8581 | 3690 | 1.6 | 2.5 | 3 | 64 | 10132 | 5275 |
| 1000 | 5.5 | 24.1 | 50 | 2.7 | 59 | 10620 | 4445 | 1.7 | 2.5 | 3.1 | 68 | 12182 | 6010 |
Functions of copper wire shielding
The principal functions of the copper wire shielding of medium-voltage cables are as follows:
The function of electromagnetic shielding is to: Copper wire shielding is an effective method of reducing electromagnetic interference, preventing external electromagnetic fields from interfering with signals or power transmission inside the cable, and improving the cable's anti-interference ability.
A protective conductor is provided by copper wire shielding, which offers an additional layer of protection to prevent external physical damage or chemical corrosion from affecting the cable conductor and extending the service life of the cable.
Copper wire shielding also provides a certain degree of safety protection, reducing interference from the outside of the cable to the inside and reducing the risk of electric shock.