Basic Info.
Model NO.
Medium Voltage Cables to IEC 60502
Application
Construction, Overhead, Underground, Industrial, Power Station
Voltage
Low and Medium Voltage Cable
Wire Core Material
Stranded Copper Conductor
Certification
ISO, CCC, CE, RoHS
Transport Package
Wooden Drums Ot Steel Wooden Drums
Specification
CU/XLPE/PVC MV Cable
Product Description
Medium Voltage Three Core Power Cable
Application
The three core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 1.8/3KV to 26/35KV and frequency 50Hz. They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.
Standards
IEC 60502 Part 1(1.8/3KV)
IEC 60502 Part 2(3.6/6KV to 18/30KV)
Construction
Conductor: Plain annealed copper or aluminium complying with IEC 60228 class 1 or 2.
Conductor Screen: The conductor screen consists of an extruded layer of non metallic, semi-conducting compound applied on top of a semi-conducting tape. The conductor screen is applied under triple extrusion process over the conductor along with the insulation and the insulation screen. The extruded semi-conducting compound is firmly bonded to the insulation to exclude all air voids and can be easily hand stripped on site. The conductor screen is not necessary for both PVC and EPR/HEPR insulated 1.8/3.6KV and 3.6/6KV cables.
Insulation: Insulation is of polyvinyl chloride (PVC) intended for 1.8/3.6KV and 3.6/6KV cables, cross-linked polyethylene compound (XLPE) or ethylene propylene rubber (EPR/ HEPR).
Table 1. Insulation Thickness Of XLPE Or EPR/HEPR Insulation
Nom. Cross Section Area | | Insulation Thickness at Nom. Voltage |
1.8/3kV (Um=3.6)kV | 3.6/6kV (Um=7.2)kV | 6/10KV (Um=12KV) | 8.7/15KV (Um=17KV) | 12/20KV (Um=24KV) | 18/30KV (Um=36KV) | 21/35KV (Um=42KV) | 26/35KV (Um=42KV) |
mm2 | mm | mm | mm | mm | mm | mm | mm | mm |
| XLPE/EPR | XLPE | EPR | XLPE/EPR | XLPE/EPR | XLPE/EPR | XLPE/EPR | XLPE/EPR | XLPE/EPR |
| Unscreened | Screened |
10 | 2.0 | 2.5 | 3.0 | 2.5 | - | - | - | - | - | - |
16 | 2.0 | 2.5 | 3.0 | 2.5 | 3.4 | - | - | - | - | - |
25 | 2.0 | 2.5 | 3.0 | 2.5 | 3.4 | 4.5 | - | - | - | - |
35 | 2.0 | 2.5 | 3.0 | 2.5 | 3.4 | 4.5 | 5.5 | - | - | - |
50 - 185 | 2.0 | 2.5 | 3.0 | 2.5 | 3.4 | 4.5 | 5.5 | 8.0 | 9.3 | 10.5 |
240 | 2.0 | 2.6 | 3.0 | 2.6 | 3.4 | 4.5 | 5.5 | 8.0 | 9.3 | 10.5 |
300 | 2.0 | 2.8 | 3.0 | 2.8 | 3.4 | 4.5 | 5.5 | 8.0 | 9.3 | 10.5 |
400 | 2.0 | 3.0 | 3.0 | 3.0 | 3.4 | 4.5 | 5.5 | 8.0 | 9.3 | 10.5 |
500 - 1600 | 2.2-2.8 | 3.2 | 3.2 | 3.2 | 3.4 | 4.5 | 5.5 | 8.0 | 9.3 | 10.5 |
Insulaton Screen: The insulation screen consists of an extruded layer of non metallic, semi-conducting compound extruded over the insulation of each core. The extruded semi- conducting layer shall consist of bonded or cold strippable semi-conducting compound capable of removal for jointing or terminating. As an option, a semi-conducting tape may be applied over the individual cores or core assembly as a bedding for the metallic layer. The minimum thickness is 0.3 mm and the maximum resistivity is 500 Ohm-m at 90°C. The screen is tightly fitted to the insulation to exclude all air voids and can be easily hand stripped on site. The insulation screen is not necessary for both PVC and EPR/HEPR insulated 1.8/3.6KV and 3.6/6KV cables. The screen may be covered by semi-conductive water blocking swellable tape to ensure longitudinal watertightness.
Inner Covering & Fillers: For cables with a collective metallic layer or cables with a metallic layer over each individual cores with additional collective metallic layers, semi-conducting inner covering and fillers shall be applied over the laid up cores. The inner covering and fillers are made of non hygroscopic material like polypropylene, except if the cable is to be made longitudinally watertight. The inner covering is extruded in general but may be lapped if the interstices between the cores are filled.
The approximate thickness of extruded inner coverings is given in Table 2:
Table 2. Approximate Thickness Of Extruded Inner Coverings
Ficititous Diameter Over Laid Up Cores | Approx. Thickress of Extruded Inner Covering |
mm | mm |
> | < | |
- | 25 | 1.0 |
25 | 35 | 1.2 |
35 | 45 | 1.4 |
45 | 60 | 1.6 |
60 | 80 | 1.8 |
80 | - | 2.0 |
*The approximate thickness of lapped inner coverings shall be 0.4mm for fictitious diameters over the laid up cores up to and including 40mm and 0.6mm for larger diameter.
Metallic Layer: The metallic layer may be applied over the individual cores or the core assembly collectively. The following types of metallic layers are provided:
1) Metallic Screen
2) Concentric Conductor
3) Metallic Sheath
4) Metallic Armour
The metallic screen shall consist of either copper tapes or a concentric layer of copper wires or a combination of tapes and wires. The concentric conductor is applied directly over the inner covering. The metallic sheath consists of lead or lead alloy applied as a tightly fitting seamless tube. The metallic armour consists of either flat wire armour, round wire armour, and double tape armour.
Table 3. Minimum Total Cross Section Of Metallic Screen
Nom. Cross-Section Area of Cable | Min. Cross-Section of Metallic Screen | DC Resistance of the Copper Wire Screen |
mm² | mm² | mm |
up to 120 | 16 | 1.06 |
150-300 | 25 | 0.72 |
400-630 | 35 | 0.51 |
800-1000 | 50 | 0.35 |
Separation Sheath (for armoured cable): The separation sheath comprises a layer of extruded PVC, PE or LSZH applied over the laid up cores under the armour. PVC is normally of grade ST2 and PE of grade ST7. The nominal thickness is calculated by 0.02Du + 0.6mm where Du is the fictitious diameter under the sheath in mm. For cables without a lead sheath, the nominal separation sheath thickness shall not be less than 1.2mm. For cables where the separation sheath is applied over the lead sheath, the nominal separation sheath thickness shall not be less than 1.0mm.
Tabel 4. Separation Thickness
Cores Diameter | Approx. Thickress of Inner Sheath |
mm | mm |
> | < | |
35 | 45 | 1.4 |
45 | 60 | 1.6 |
60 | 80 | 1.8 |
80 | - | 2.0 |
Lapped Bedding (for armoured lead sheathed cable): The lapped bedding applied to the lead sheath consists of either impregnated/synthetic compounded paper tapes or a combination of two layers of these paper tapes followed by a few layers of compounded fabulous materials. The thickness is around 1.5mm.
Armour (for armoured cable): The armour is applied over the inner covering helically. It consists of either flat galvanized steel wire armour (strip), round galvanized steel wire armour, and double steel tape armour.
Table 5. Round Armour Wire Diameter
Fictitious Diameter Under the Armour | Armour Wire Diameter |
mm | mm |
> | < | |
- | 10 | 1.25 |
10 | 15 | 1.25 |
15 | 25 | 1.6 |
25 | 35 | 2.0 |
35 | 60 | 2.5 |
60 | - | 3.15 |
Table 6. Armour Tape Thickness
Fictitious Diameter Under the Armour | Galvanized Steel / Steel | Aluminum / Aluminium Alloy |
mm | mm | mm |
> | < | | |
- | 30 | 0.2 | 0.5 |
30 | 70 | 0.5 | 0.5 |
70 | - | 0.8 | 0.8 |
For flat wire armour and fictitious diameter under the armour greater than 15mm, the nominal thickness of the flat steel wire diameter shall be 0.8mm.Cables with fictitious diameter under the armour up to and including 15mm, flat wire armour will not be used. The tape armour is applied helically in two layers so that the outer tape is approximately central over the gap of the inner tape. If tape armour is used, the inner covering shall be reinforced by taped bedding.
Over Sheath: Overall sheath comprises a layer of extruded either thermoplastic compound (PVC ST3 type or PE ST7 type) or elastomeric compound (polychlorprene CSP or chlorosulfonated PE). The nominal oversheath thickness is calculated by 0.035D+1 where D is the fictitiuous diameter immediately under the oversheath in mm. For unarmoured cables and cables with the oversheath not applied over the armour, metallic screen or concentric conductor, the nominal oversheath thickness shall not be less than 1.4mm. And for cables with oversheath applied over the armour, metallic screen or concentric conductor, the nominal oversheath thickness shall not be less than 1.8mm.
PHYSICAL PROPERTIES:
Operating Temperature: up to 70°C (PVC insulation); up to 90°C (XLPE or EPR insulation)
Temperature Range: -5°C ( PVC sheath ); -20°C ( PE sheath )
Short Circuit Temperature( 5 seconds maximum duration ): 140-160 °C (PVC insulation);
250°C (XLPE or EPR insulation)
Bending Radius: 15 x OD
Table 7. Nominal /Operating /Testing Voltages
Rated Voltage Uo/U | Operating Voltage (Um) | Testing Voltage (rms) |
1.8/3KV | 3.6KV | 6.5KV |
3.6/6KV | 7.2KV | 12.5KV |
6/10KV | 12KV | 21KV |
8.7/15KV | 17.5KV | 30.5KV |
12/20KV | 24KV | 42KV |
18/30KV | 36KV | 63KV |
21/35KV | 42KV | 73.5(53)*KV |
26/35KV | 42KV | 91(65)*KV |
*21/35KV and 26/35kV power frequency voltage test can be made under the following conditions: 2.5Uo x 30mins or 3.0Uo x 15mins. Numbers in brackets refer to the test values for 3.0Uo x 1.5mins.
Three Core 1.8/3KV (Um=3.6KV) Dimensional Data
| | Unarmoured Cables | Steel Round-Wire Armoured Cables |
Nom. Cross- Section Area | Nom.Insulation Thickness | Copper Tape Thickness | Copper Wire Screen Area* | Nom. Sheath Thickness | Approx. Overall Diameter | Approx. Weight | Nom. Bedding Thickness | Armour Wire Size | Nom. Sheath Thickness | Approx. Overall Diameter | Approx. Weight |
CU | AL | CU | AL |
mm2 | mm | mm | mm2 | mm | mm | kg/km | mm | mm | mm | mm | kg/km |
10 | 2.0 | 0.1 | 16 | 1.8 | 23 | 650 | 460 | 1.2 | 1.6 | 1.8 | 28 | 1480 | 1290 |
16 | 2.0 | 0.1 | 16 | 1.8 | 24 | 840 | 540 | 1.2 | 1.6 | 1.9 | 29 | 1720 | 1410 |
25 | 2.0 | 0.1 | 16 | 1.8 | 26 | 1160 | 680 | 1.2 | 1.6 | 1.9 | 32 | 2130 | 1650 |
35 | 2.0 | 0.1 | 16 | 1.8 | 29 | 1490 | 820 | 1.2 | 2.0 | 2.1 | 36 | 2810 | 2140 |
50 | 2.0 | 0.1 | 16 | 1.9 | 32 | 1900 | 1000 | 1.2 | 2.0 | 2.2 | 39 | 3340 | 2450 |
70 | 2.0 | 0.1 | 16 | 2.0 | 36 | 2580 | 1290 | 1.2 | 2.0 | 2.3 | 42 | 4200 | 2910 |
95 | 2.0 | 0.1 | 16 | 2.2 | 40 | 3440 | 1640 | 1.3 | 2.5 | 2.4 | 47 | 5620 | 3820 |
120 | 2.0 | 0.1 | 16 | 2.3 | 43 | 4220 | 1950 | 1.3 | 2.5 | 2.5 | 51 | 6580 | 4310 |
150 | 2.0 | 0.1 | 25 | 2.4 | 46 | 5090 | 2290 | 1.4 | 2.5 | 2.7 | 54 | 7680 | 4870 |
185 | 2.0 | 0.1 | 25 | 2.5 | 50 | 6240 | 2730 | 1.5 | 2.5 | 2.8 | 58 | 9060 | 5560 |
240 | 2.0 | 0.1 | 25 | 2.7 | 56 | 8030 | 3430 | 1.6 | 2.5 | 3.0 | 64 | 11200 | 6600 |
300 | 2.0 | 0.1 | 25 | 2.8 | 60 | 9890 | 4100 | 1.6 | 2.5 | 3.1 | 69 | 13590 | 7500 |
400 | 2.0 | 0.1 | 35 | 3.1 | 68 | 12530 | 5150 | 1.8 | 3.15 | 3.4 | 78 | 17260 | 9880 |
500 | 2.2 | 0.1 | 35 | 3.3 | 75.7 | 16680 | 7510 | 1.8 | 3.15 | 3.5 | 84.3 | 21780 | 13025 |
630 | 2.4 | 0.1 | 35 | 3.5 | 84.9 | 21770 | 10040 | 1.8 | 3.15 | 3.8 | 94.6 | 27400 | 16050 |
*Optional wire screen can be provided in combination of copper tapes. Nominal screen area, as stated in the table, can be supplied as standard.
| Steel Flat Wire Armoured Cables | Double Steel Tape Armoured Cables |
Nom. Cross- Section Area | Nom. Bedding Thickness | Armour Wire Size | Nom.Sheath Thickness | Approx. Overall Diameter | Approx. Weight | Nom. Bedding Thickness | No of Steel Tapes x Nom Tape Thickness | Nom.Sheath Thickness | Approx. Overall Diameter | Approx. Weight |
CU | AL | CU | AL |
mm2 | mm | mm | mm | mm | kg/km | mm | mm | mm | mm | kg/km |
10 | 1.2 | 0.8 | 1.8 | 24.5 | 1245 | 1065 | 1.2 | 2 x 0.2 | 1.8 | 23.6 | 925 | 750 |
16 | 1.2 | 0.8 | 1.8 | 27.1 | 1565 | 1280 | 1.2 | 2 x 0.2 | 1.8 | 26.2 | 1205 | 925 |
25 | 1.2 | 0.8 | 1.8 | 29.7 | 1975 | 1525 | 1.2 | 2 x 0.2 | 1.9 | 29.0 | 1590 | 1145 |
35 | 1.2 | 0.8 | 1.9 | 32.5 | 2420 | 1805 | 1.2 | 2 x 0.2 | 1.9 | 31.6 | 1985 | 1370 |
50 | 1.2 | 0.8 | 2.0 | 35 | 2860 | 2080 | 1.2 | 2 x 0.2 | 2.0 | 34.1 | 2400 | 1605 |
70 | 1.2 | 0.8 | 2.1 | 38.7 | 3685 | 2525 | 1.2 | 2 x 0.5 | 2.2 | 39.5 | 3570 | 2410 |
95 | 1.3 | 0.8 | 2.2 | 42.9 | 4695 | 3080 | 1.3 | 2 x 0.5 | 2.3 | 43.7 | 4570 | 2950 |
120 | 1.3 | 0.8 | 2.3 | 46.4 | 5650 | 3585 | 1.3 | 2 x 0.5 | 2.4 | 46.1 | 5510 | 3440 |
150 | 1.4 | 0.8 | 2.4 | 49.6 | 6630 | 4085 | 1.4 | 2 x 0.5 | 2.6 | 50.6 | 6500 | 3955 |
185 | 1.5 | 0.8 | 2.6 | 54.1 | 7990 | 4820 | 1.5 | 2 x 0.5 | 2.7 | 54.9 | 7825 | 4650 |
240 | 1.6 | 0.8 | 2.7 | 59.2 | 10060 | 5790 | 1.6 | 2 x 0.5 | 2.8 | 60.0 | 9825 | 5600 |
300 | 1.6 | 0.8 | 2.9 | 64.6 | 12230 | 6865 | 1.6 | 2 x0.5 | 3.0 | 65.4 | 12030 | 6660 |
400 | 1.8 | 0.8 | 3.1 | 71.0 | 15200 | 8280 | 1.8 | 2 x 0.5 | 3.2 | 71.8 | 14970 | 8055 |
500 | 1.8 | 0.8 | 3.3 | 79.5 | 19090 | 10255 | 1.8 | 2 x 0.8 | 3.5 | 80.5 | 18880 | 10035 |
630 | 1.8 | 0.8 | 3.6 | 89.8 | 24400 | 12920 | 1.8 | 2 x 0.8 | 3.8 | 92.3 | 25070 | 13620 |
Electrical Data
Nom. Cross- Section Area | D C Resistance CU / AL | A C Resistance CU / AL | Short Circuit Rating of Conductor CU / AL 1 sec | Capaci- tance | Charging Current | Short Circuit Rating of Copper Wire Screen Per Core 1 sec | Short Circuit Rating of Copper Tape Screen Per Core 1 sec | Reactance | Inductance |
mm² | µΩ/m | µΩ/m | kA | pF/m | mA/m | kA | kA | µΩ/m | nH/m |
10 | 1830/3080 | 2330/3920 | 1.4/0.9 | 160 | 0.25 | 2.6 | 0.4 | 101 | 390 |
16 | 1150/1910 | 1460/2420 | 2.2/1.4 | 180 | 0.27 | 2.6 | 0.4 | 98 | 370 |
25 | 727/1200 | 929/1538 | 3.6/2.3 | 220 | 0.29 | 2.6 | 0.4 | 95 | 350 |
35 | 524/868 | 668/1113 | 5.0/3.2 | 250 | 0.31 | 2.6 | 0.5 | 92 | 330 |
50 | 387/641 | 494/822 | 6.8/4.4 | 270 | 0.33 | 2.6 | 0.5 | 88 | 310 |
70 | 268/443 | 343/568 | 9.8/6.3 | 310 | 0.35 | 2.6 | 0.6 | 84 | 290 |
95 | 193/320 | 248/410 | 13.3/8.5 | 350 | 0.38 | 2.6 | 0.6 | 81 | 270 |
120 | 153/253 | 196/325 | 17.2/11.0 | 380 | 0.46 | 2.6 | 0.7 | 79 | 250 |
150 | 124/206 | 159/265 | 21.2/13.5 | 420 | 0.50 | 2.6 | 0.7 | 77 | 260 |
185 | 99.1/164 | 128/211 | 26.6/17.0 | 460 | 0.56 | 2.6 | 0.8 | 76 | 250 |
240 | 75.4/125 | 98/161 | 34.9/22.3 | 510 | 0.61 | 4.3 | 0.9 | 74 | 240 |
300 | 60.1/100 | 80/130 | 43.8/28.0 | 570 | 0.68 | 4.3 | 1.0 | 73 | 250 |
400 | 47.0/77.8 | 64/102 | 57.3/36.6 | 590 | 0.70 | 5.8 | 1.1 | 71 | 240 |
500 | 36.6/60.5 | 57/81 | 72.3/46.2 | 610 | 0.72 | 5.8 | 1.2 | 69 | 230 |
630 | 28.3/46.9 | 42/64 | 91.2/58.3 | 630 | 0.74 | 5.8 | 1.3 | 67 | 220 |
Address:
No. 68 Lishan North Road, Tianqiao District, Jinan, Shandong, China
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, OHSAS/ OHSMS 18001
Company Introduction:
Shandong Yanggu Cable Group′s predecessor is Shandong Yanggu Cable Factory, was founded in 1986. Shandong Yanggu Cable Group is engaged in wire and cable high-tech research and production. Shandong Yanggu Cable Group is a high technology, high benefit State-owned large enterprises, One of the largest cable production base in China.
Shandong Yanggu Cable Group has plant area more than700, 000 square meters, has more than 2, 000 employees, hasthe Shandong Pacific Fiber Cable Co., Ltd., Nexans (Yanggu) New Rihui Limited, Yanggu Mingschin Copper Co., Ltd., Shandong Pacific Oaks Cable Ltd. And other holding companies.
Our Company has extensive manufacturing experience, strong technical capability, advanced equipment and well-appointed detection means. Company has main production equipment 860 (sets) and testing equipment 314 (Taiwan) sets. Which was imported successively from South Korea, Japan, the United States, Switzerland, Finland, Germany and other seven countries have the international leading level of the ultrahigh voltage and high voltage cross-linking cables, rubber sets of cables, fiber optic cable production line and testing equipment: Nokia of Finland, Troost of Germany is vertical and catenary cross-linking production line, three-layer co-extruded rubber cable PLCV120 UK production line, production line CCV90 Germany, Finland NEXTROM, Austria MS company, ROSSENDAHL company′s full range of cable production line, built to high 128.9 meters of vertical cross-linking pylons, Largest one in Asia is 500 kv power cables resonance test area, ensure the quality of the products reached the domestic leading level.