BS 6622/BS 7835 Standard Single-Core MV Cables
Dirigent: Vanlig glödgad koppar eller aluminium
Yttre jacka: Pvc/le/lszh
Isolering: Xlpe/epr
Insulation Layer Parameters:
|
Nominellt tvärsnitt
|
Thickness of Insulation at Nominal Voltage
|
||||
|---|---|---|---|---|---|
|
|
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
|
2.6
|
3.4
|
4.5
|
5.5
|
8.0
|
|
300
|
2.8
|
3.4
|
4.5
|
5.5
|
8.0
|
|
400
|
3.0
|
3.4
|
4.5
|
5.5
|
8.0
|
|
≥500
|
3.2
|
3.4
|
4.5
|
5.5
|
8.0
|
Fysiska egenskaper:
Driftstemperatur: upp till 90 ° C
Temperaturområde: -5° C (PVC jacket); -20° C (På jacka)
Kortslutningstemperatur: 250° C (Maximal varaktighet för kortslutning som inte överstiger 5s)
Böjradie: 12 x av
|
Nominell spänning uo/u
|
Driftspänning (En)
|
Testspänning (rms)
|
|---|---|---|
|
3.8/6.6Kv
|
7.2Kv
|
|
|
6.35/11Kv
|
12Kv
|
25.5Kv
|
|
8.7/15Kv
|
17.5Kv
|
35Kv
|
|
12.7/22Kv
|
24Kv
|
51Kv
|
|
19/33Kv
|
36Kv
|
76Kv
|
APPLICATION:
The standard power single-core cables have a voltage range from 3.8/6.6KV to 19/33KV and a frequency of 50Hz. they are mainly used in a variety of places such as power supply stations, indoor and outdoor laying, in pipelines and tunnels, in mines and shafts, in direct burial in the soil and underwater at the bottom of the sea, etc. They are capable of withstanding considerable pressures and mechanical external forces, and axial tensile forces.
