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33KV Power Cables to BS 7835 NR/PS/ELP/00008

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.

Standards

NR/PS/ELP/00008(formerly RT/E/PS/00008)

BS 6622, BS 6234, BS 7454

IEC 60502-2, IEC60840

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