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APPLICATION of 33kv Xlpe Single Core Cable
The 33kv xlpe single core cable 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 of 33kv Xlpe Single Core Cable
BS 6622
BS 7835 (LSZH)
CONSTRUCTION of 33kv Xlpe Single Core Cable
Conductor:Plain annealed copper or aluminum complying with IEC 60228/BS 6360. Copper conductors shall be stranded (class 2) and aluminum 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 | |
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 | |
Nominal Cross-Section | Minimum Cross-Section | DC Resistance of the Copper Wire Screen |
of Cables | of Copper Wire Screen | at 20°C |
mm² | mm² | Ω |
up to 120 | 16 | 1.06 |
150-300 | 25 | 0.72 |
400-630 | 35 | 0.51 |
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 |
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 | 36KV | 76KV |
Registration Date | 2016/03/01(Year/Month/Date) |
---|---|
Buyer / Seller in EC21 | Seller |
Business Type | Manufacturer |
Year established | 1994 |
Employees total | 101 - 500 |
Annual revenue | More than 100,000,000 |
Company | Henan Tano Cable Co., Ltd. |
---|---|
Address | Zhongyuan DistrictZhengzhouHenan450000China |
Phone | 86 - 0371 - 60306197 |
Fax | 86 - 0371 - 60306195 |
Homepage | https://www.tanocable.com/ |
Contact | Juliet / manager |