Basic Info.
Application
Construction, Underground, Industrial, Power Station
Voltage
Low and Medium Voltage Cable
Sheath Material
PVC, PE, LSZH
Wire Core Material
Bare Copper Wire
Certification
ISO, CCC, CE
Applications
Industries and Power Stations
Standard
BS 6622 and BS 7835 (LSZH Version)
Armour (for Armoured Cable)
Aluminum Wire and Steel Wire Armoured
Separation Sheath (for Armoured Cable)
PVC, PE or LSZH
Operating Temperature
up to 90°c
Short Circuit Temperature
250deg;C (Short Circuit Duration up to 5 Seconds)
Transport Package
Steel Wooden Drum and Steel Drum
Product Description
Single Core Flame Resistant Electrical Wire and Cable to BS 6622 and BS 7835
APPLICATIONS:
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.
STANDARD:
BS 6622 BS 7835 (LSZH Version)
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.
Table 1. Insulation Thickness
Nom. Cross | Insulation Thickness at Nominal Voltage |
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 | 8.0 |
240 | 2.8 | 3.4 | 4.5 | 5.5 | 8.0 |
300 | 2.8 | 3.4 | 4.5 | 5.5 | 8.0 |
400 | 3 | 3.4 | 4.5 | 5.5 | 8.0 |
Above 500 | 3.2 | 3.4 | 4.5 | 5.5 | 8.0 |
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. Total cross section of copper wire screen layer is shown in table 2.
Table 2. Minimum Total Cross Section of Copper Wire Screen & DC Resistance of the Screen
Nominal Cross-Section of Cables | Minimum Cross-Section of Copper Wire Screen | DC Resistance of the Copper Wire Screenat 20°C |
mm² | mm² | Ω |
up to 120 | 16 | 1.06 |
150-300 | 25 | 0.72 |
400-630 | 35 | 0.51 |
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.
Armour (for armoured cable): The armour consists of round aluminium wire with diameter specified as in Table 3.
Table 3. Armour Wire Diameter
Fictitious Diameter under the Armour | Armour Wire Diameter |
mm | mm |
> | < | |
| 25 | 1.6 |
25 | 35 | 2 |
35 | 60 | 2.5 |
60 | - | 3.15 |
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 over sheath is normally black in colour. When a DC voltage test is to be performed on the over sheath, a semi-conducting layer such as graphite coating shall be applied over the surface of the extruded over sheath. The nominal over sheath thickness is calculated by 0.035+D where D is the diameter immediately under the over sheath in mm. For cables with the over sheath not applied over the armour, the nominal over sheath thickness shall not be less than 1.4mm. And for cables with over sheath applied over the armour, the nominal over sheath thickness shall not be less than 1.8mm.
PHYSICAL PROPERTIES:
Operating Temperature: up to 90°C
Temperature Range: -5°C ( PVC or LSZH sheath ); -20°C ( PE sheath )
Short Circuit Temperature: 250°C (short circuit duration up to 5 seconds)
Bending Radius: 12 x OD
Table 4. Nominal /Operating /Test Voltages
Rated Voltage Uo/U | Operating Voltage (Um) | Testing Voltage (rms) |
3.8/6.6KV | 7.2KV | 15KV |
6.35/11KV | 12KV | 25.5KV |
8.7/15KV | 17.5KV | 35KV |
12.7/22KV | 24KV | 51KV |
19/33KV | 38KV | 78KV |
Single Core 3.8/6.6KV (Um=7.2KV) Dimensional Data
Nom. Cross-Section Area | Nom. Insulation Thickness | Unarmoured Cables | Aluminium Wire Armoured Cables |
CopperWire Screen Area | Nom. Sheath Thickness | Approx.Overall Diameter | Approx.Weight | CopperTape Screen Area | Nom. Bedding Thickness | Nom. Armour Wire Diameter | Nom. Sheath Thickness | Approx.Overall Diameter | Approx.Weight |
CU | AL | CU | AL |
mm² | mm | mm2 | mm | mm | kg/km | mm2 | mm | mm | mm | mm | kg/km |
25 | 2.5 | 16 | 1.5 | 20.3 | 750 | 580 | 3.4 | 1.2 | 1.6 | 1.8 | 26.3 | 1150 | 1000 |
35 | 2.5 | 16 | 1.6 | 21.3 | 870 | 650 | 3.6 | 1.2 | 1.6 | 1.8 | 27.3 | 1250 | 1050 |
50 | 2.5 | 16 | 1.6 | 22.4 | 1090 | 770 | 3.9 | 1.2 | 1.6 | 1.8 | 28.4 | 1500 | 1190 |
70 | 2.5 | 16 | 1.7 | 24.2 | 1310 | 870 | 4.3 | 1.2 | 1.6 | 1.8 | 30 | 1740 | 1300 |
95 | 2.5 | 16 | 1.7 | 25.8 | 1560 | 960 | 4.7 | 1.2 | 1.6 | 1.9 | 31.8 | 2030 | 1430 |
120 | 2.5 | 16 | 1.8 | 27.4 | 1830 | 1070 | 5 | 1.2 | 1.6 | 1.9 | 33.2 | 2310 | 1550 |
150 | 2.5 | 25 | 1.8 | 29.1 | 2130 | 1190 | 5.3 | 1.2 | 1.6 | 2 | 35.1 | 2660 | 1720 |
185 | 2.5 | 25 | 1.9 | 30.8 | 2490 | 1320 | 5.8 | 1.2 | 2 | 2 | 37.4 | 3120 | 1950 |
240 | 2.6 | 25 | 1.9 | 33.5 | 3040 | 1520 | 6.3 | 1.2 | 2 | 2.1 | 40.3 | 3740 | 2200 |
300 | 2.8 | 25 | 2 | 36.1 | 3650 | 1770 | 7 | 1.2 | 2 | 2.2 | 42.9 | 4400 | 2520 |
400 | 3 | 35 | 2.2 | 40.6 | 4680 | 2170 | 7.7 | 1.2 | 2 | 2.3 | 47.2 | 5490 | 2960 |
500 | 3.2 | 35 | 2.3 | 43.6 | 5670 | 2570 | 8.5 | 1.3 | 2.5 | 2.5 | 51.6 | 6760 | 3660 |
630 | 3.2 | 35 | 2.4 | 48.8 | 6980 | 2990 | 9.5 | 1.4 | 2.5 | 2.6 | 57 | 8200 | 4160 |
Electrical Data
Nom. Cross-Section Area | | Unarmoured Cables | Aluminium Wire Armoured Cables | |
D C Resistance CU / AL | A C Resistance CU / AL | Short Circuit Rating ofConductor CU / AL1 sec | Capaci-tance | ChargingCurrent | | | Reactance | Inductance | Impedance |
Short Circuit Rating ofCopperWire Screen 1 sec | Short Circuit Rating ofCopper Tape Screen 1 sec | Trefoil | Flat Spaced | Trefoil | Flat spaced | Trefoil | Flat Spaced |
CU | AL | CU | AL |
mm2 | μΩ/m | μΩ/m | kA | pF/m | mA/m | kA | kA | μΩ/m | μΩ/m | nH/m | nH/m | μΩ/ m | μΩ/m | | |
25 | 727/1200 | 927/1538 | 3.6/2.3 | 263 | 0.32 | 2.6 | 0.4 | 136 | 194 | 400 | 590 | 936 | 1544 | 952 | 1554 |
35 | 524/868 | 668/1113 | 5.0/3.2 | 291 | 0.35 | 2.6 | 0.5 | 127 | 185 | 390 | 580 | 679 | 1121 | 695 | 1131 |
50 | 387/641 | 494/822 | 6.8/4.4 | 321 | 0.39 | 2.6 | 0.5 | 121 | 179 | 380 | 570 | 511 | 834 | 527 | 844 |
70 | 268/443 | 343/568 | 9.8/6.3 | 371 | 0.45 | 2.6 | 0.6 | 115 | 173 | 370 | 550 | 364 | 583 | 386 | 597 |
95 | 193/320 | 248/410 | 13.3/8.5 | 417 | 0.5 | 2.6 | 0.6 | 110 | 168 | 350 | 540 | 272 | 427 | 300 | 446 |
120 | 153/253 | 196/325 | 17.2/11.0 | 459 | 0.55 | 2.6 | 0.7 | 107 | 165 | 340 | 520 | 225 | 345 | 257 | 367 |
150 | 124/206 | 159/265 | 21.2/13.5 | 494 | 0.59 | 4.3 | 0.7 | 103 | 161 | 330 | 510 | 193 | 287 | 229 | 313 |
185 | 99.1/164 | 128/211 | 26.6/17.0 | 543 | 0.65 | 4.3 | 0.8 | 100 | 158 | 320 | 500 | 165 | 237 | 206 | 267 |
240 | 75.4/125 | 98/161 | 34.9/22.3 | 583 | 0.7 | 4.3 | 0.9 | 97 | 155 | 310 | 490 | 140 | 191 | 185 | 226 |
300 | 60.1/100 | 80/130 | 43.8/28.0 | 602 | 0.72 | 4.3 | 1 | 95 | 153 | 300 | 490 | 126 | 163 | 174 | 203 |
400 | 47.0/77.8 | 64/102 | 57.3/36.6 | 627 | 0.75 | 5.8 | 1.1 | 92 | 150 | 290 | 480 | 113 | 141 | 164 | 184 |
500 | 36.6/60.5 | 51/81 | 72.3/46.2 | 654 | 0.79 | 5.8 | 1.2 | 90 | 149 | 290 | 470 | 105 | 124 | 158 | 171 |
630 | 28.3/46.9 | 42/64 | 91.2/58.3 | 726 | 0.87 | 5.8 | 1.3 | 87 | 145 | 280 | 460 | 97 | 110 | 151 | 160 |
Current Rating Conditions:
Ground Temperature: 20°C
Ambient Temperature (air): 30°C
Depth of Soil: 0.8m
Thermal Resistance of Soil: 1.5K•m/W
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.