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.
Reference Standards
- 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 mm^2) or class 2 compact circular stranded plain copper (for 300mm^2) 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 |
mm^2 |
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 |
Nominal Thickness of Conductor Screen |
Nominal Thickness of Insulation & Insulation Screen |
Nominal Overall Diameter |
Nominal Weight |
| |
No.×mm^2 |
mm |
mm/mm |
mm |
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 |
