Home > Products > Medium Voltage Power Cable > Single Core Cables to BS 6622 33kV price high voltage power cable
Single Core Cables to BS 6622 33kV price high voltage power cable
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Product Details
Place of Origin: | Hebei, China | Brand Name: | Wanfang | Model Number: | YJV, YJV22, YJV32, YJV42 |
Type: | Insulated | Application: | Other, Industrial, equipment | Conductor Material: | Copper |
Conductor Type: | Stranded | Insulation Material: | PE |
Product Description
Single Core Cables to BS 6622 33kV price high voltage power cable
Application
The single core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 3.8/6.6KV to 19/33KV 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
BS 6622
BS 7835 (LSZH)
Construction
Conductor
Plain annealed copper or aluminium complying with IEC 60228/BS 6360. Copper conductors shall be stranded (class 2) and aluminium conductors shall be either solid or stranded (class 2).
Conductor Screen
Extruded layer of semi-conducting cross-linkable compound is applied over the conductor and shall cover the surface completely. The minimum thickness is 0.3mm and the maximum resistivity shall not exceed 500 Ohm-m at 90°C.
Insulation
Insulation is of cross-linked polyethylene compound XLPE (GP8) conforming to BS 7655-1.3 or EPR (GP7), conforming to BS 7655-1.2.
Insulaton Screen
Extruded layer of semi-conducting cross-linkable compound is applied over the insulation. 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 extruded semi-conducting layer 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.
Metallic Layer
The metallic layer shall consist of either copper tapes or a concentric layer of copper wires or a combination of tapes and wires. The metallic layer provides an earth fault current path, capable of withstanding fault current to earth of 1000A for one second at maximum temperature 160°C. Copper wires are applied over the conducting water blocking layer with a minimum diameter of 0.5mm. And over the copper wires, copper tape with minimum thickness of 0.1mm can be applied helically with overlap.
Separation Sheath (for armoured cable)
The separation sheath comprises a layer of extruded PVC, PE or LSZH. The nominal thickness is calculated by 0.02Du + 0.6mm where Du is the fictitious diameter under the sheath in mm. The nominal separation sheath thickness shall not be less than 1.2mm.
Over Sheath
Overall sheath comprises a layer of extruded either PVC type 9 conforming to BS 7665-4.2 or MDPE type TS2 conforming to BS 7655-10.1. LSZH can be offered as an option. The oversheath is normally black in colour. When a DC voltage test is to be performed on the oversheath, a semi-conducting layer such as graphite coating shall be applied over the surface of the extruded oversheath. The nominal oversheath thickness is calculated by 0.035+D where D is the diameter immediately under the oversheath in mm. For cables with the oversheath not applied over the armour, the nominal oversheath thickness shall not be less than 1.4mm. And for cables with oversheath applied over the armour, the nominal oversheath thickness shall not be less than 1.8mm.
Physical Properties
Operating Temperature: up to 90°C
Temperature Range: -5°C ( PVC sheath ); -20°C ( PE sheath )
Short Circuit Temperature: 250°C (short circuit duration up to 5 seconds)
Bending Radius: 12 x OD
Current Rating for 19/33KV (Um=36KV)
Nom. Cross- Section Area | Ground | Duct | Air | |||||||||
Trefoil | Flat Spaced | Trefoil | Flat Touching | Trefoil | Flat Spaced | |||||||
CU | AL | CU | AL | CU | AL | CU | AL | CU | AL | CU | AL | |
mm2 | A | A | A | A | A | A | ||||||
50 | 220/220 | 170/170 | 230/230 | 175/175 | 225/220 | 175/170 | 225/220 | 175/170 | 245/260 | 190/200 | 295/300 | 230/230 |
70 | 270/270 | 210.210 | 280/280 | 215/215 | 270/260 | 210/205 | 270/270 | 210/210 | 300/320 | 235/245 | 365/370 | 285/285 |
95 | 320/320 | 250/245 | 335/335 | 260/260 | 320/300 | 250/245 | 320/325 | 250/250 | 360/380 | 280/295 | 450/450 | 345/350 |
120 | 360/360 | 280/280 | 380/380 | 295/295 | 360/340 | 280/275 | 365/365 | 285/285 | 425/440 | 330/340 | 520/520 | 400/400 |
150 | 410/410 | 320/310 | 430/430 | 330/330 | 405/370 | 320/300 | 410/410 | 320/315 | 485/490 | 375/385 | 590/590 | 455/455 |
185 | 460/450 | 360/350 | 485/485 | 375/375 | 445/400 | 350/335 | 460/460 | 360/360 | 550/560 | 430/440 | 670/670 | 520/520 |
240 | 530/510 | 415/405 | 560/560 | 440/440 | 520/450 | 415/380 | 530/530 | 415/415 | 650/650 | 510/510 | 800/800 | 620/620 |
300 | 600/570 | 475/450 | 640/640 | 495/495 | 570/490 | 460/415 | 600/600 | 470/470 | 740/730 | 580/580 | 920/910 | 710/710 |
400 | 690/640 | 550/510 | 730/730 | 570/570 | 630/530 | 520/460 | 690/680 | 540/530 | 850/830 | 680/670 | 1070/1060 | 840/830 |
500 | 760/700 | 610/570 | 830/830 | 650/650 | 700/570 | 570/510 | 780/770 | 610/610 | 980/940 | 790/770 | 1250/1230 | 980/970 |
630 | 850/760 | 690/640 | 940/940 | 750/750 | 780/610 | 650/560 | 890/880 | 700/700 | 1130/1050 | 920/880 | 1450/1430 | 1060/1140 |
For detailed data for this cable, welcome to contact us 7*24 hours.
wanfangcable.en.china.cn
Contact Us
- Hebei Wanfang Wire & Cable Group Co., Ltd.
- AddressYaotai Village, Jiajiakou Township, Ningjin County
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