33KV Power Cables to BS 7835 NR/PS/ELP/00008
Application
The cables are used to distribute three phase a.c. electrical power supplies at nominal system voltages of 33KV to traction substations on D.C. electrifi ed lines.
Standard
- NR/PS/ELP/00008(formerly RT/E/PS/00008)
- BS 6622, BS 6234, BS 7454
- IEC 60502-2, IEC60840
Cable Construction
- Conductors: Class 1 circular solid aluminium (for 185 mm²) or class 2 compact circular stranded plain copper (for 300mm²) to BS EN 60228: 2005 (previously BS 6360).
- Conductor Screen: Extruded semi-conducting XLPE (Cross-Linked Polyethylene) solidly bonded.
- Insulation: XLPE (Cross-Linked Polyethylene).
- Insulation Screen: Extruded semi-conducting XLPE (Cross-Linked Polyethylene), solidly bonded and cold strippable.
- Separator: Semi conducting water blocking tape.
- Screen: Copper wire screen, helically wound with equalising copper tape.
- Separator: Semi conducting water blocking tape.
- Sheath: Graphite coated MDPE type TS2.
Electrical Characteristics at 20℃
Nominal Conductor Cross Section | mm² | 185 | 300 |
Maximum DC Conductor Resistance | Ω/km | 0.164 | 0.0601 |
Capacitance | μF/km | 0.205 | 0.243 |
Voltage Rating | KV | 19/33 | 19/33 |
Mechanical and Thermal Properties
- Minimum Bending Radius: 15×OD
- Temperature Range: 0℃ to +90℃ (during operation); 0℃ to +60℃ (during installation)
Dimensions and Weight
Cable Code | No. of cores& Nominal Conductor Cross Sectional Area No.×mm² |
Nominal Thickness of Conductor Screen mm |
Nominal Thickness of Insulation &Insulation Screen mm/mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
---|---|---|---|---|---|
RF00008-RHZ1H16-19/33KV-1G185AL | 1×185 | 0.9 | 8.0/0.6 | 45.0 | 2200 |
RF00008-RHZ1H16-19/33KV-1G300CU | 1×300 | 0.9 | 8.0/0.6 | 50.0 | 4500 |