33kV Cable XLPE Single Core 300sqmm BS7870 Nexans

Nexans

bs7870 Cable 33KV single CORE 300MM²

Nexans BS7870 Cable Description: 19/33kV single core unarmoured XLPE insulated MV cables. Rated voltage 19/33kV.

International Standards: IEC 60502-2

National Standards: BS 7870-4.10

Description: Exact data will vary based upon the options required. The cable manufactured by Nexans is suitable for rated voltage 19/33KV according to IEC 60502-2.

Thorne & Derrick | Ellis Patents UK Distributors

TECHNICAL SPECIFICATION

Values for minimum bending radius are multiplied by two for cables being laid (dynamic)

Ampacity Values based on:

Depth of cover = 800mm
Thermal resistivity of soil = 1.2K.m/W
Soil temperature = 15°C
Ambient Air temperature = 25°C
Maximum conductor temperature = 90°C

Cable specification for 33kV Single Core 300sqmm BS7870 cables.

	Cables with Copper Conductors	Cables with Aluminium Conductors
Nominal cross-sectional area sqmm	300	300
Approximate diameter over conductor mm	20.5	20.5
Approximate diameter over insulation mm	38.1	38.1
Approximate overall diameter mm	46.6	46.6
Approximate weight of cable kg/m	4220	2330
Minimum bending radius (static) mm	470	470
Maximum pulling tension on cable kg	1500	900
Maximum DC resistance (R) @ 20°C W/km	0.0601	0.1
Maximum AC resistance (R) @ 90°C W/km	0.079	0.13
Inductance (L) @ 50Hz @ 90°C mH/km	0.36	0.36
Approximate Capacitance (C) µF/km	0.25	0.25
Short circuit ratings
1 Second Short Circuit Rating of Conductor (90 to 250°C) kA	43.4	28.8
1 Second Short Circuit Rating of a 35sqmm Copper wire screen (80 to 250°C) kA	4.8	4.8
1 Second Short Circuit Rating of a 50sqmm Copper wire screen (80 to 250°C) kA	8.2	8.2
Current Carrying Capacity (cables laid in trefoil)
Direct Buried A	600	475
Single way ducts A	570	460
In Air A	770	600

➡ See HV Cable Joints, Terminations & Connectors to enable the installation of 33kV XLPE Single Core BS7870 Nexans Cable – for terminating Heat Shrink Cable Terminations medium voltage cables into MV-HV gas insulated switchgear, transformers and electrical equipment with outer cone type bushings please see Nexans Euromold connectors – slip-on, heat shrink terminations and cold shrink cable joints from 11kV-33kV (42kV) also available for MV-HV cables.

Nexans Euromold screened separable connectors, elbows and Tee-connectors terminate high voltage cables with polymeric insulation (XLPE & EPR) onto switchgear and transformer bushings.