Cable Services stock and supply an extensive range of cables to support the market sectors we serve
We specialize in High Voltage solutions above 35kV, offering a full range from LV to HV to meet your project needs.
Ranging from low voltage single or multicore to medium and high voltage cables, we are able to provide your cable requirements to meet with your project needs. Please contact your nearest branch so we can discuss your specific cable requirements in more detail and get you the best trade price.
High Voltage (HV) โ Above 35kV
Contact Us for High Voltage Cable Stock and Projects
High Voltage installations above 35Kv require specialist knowledge and tailored solutions. We don’t list standard stock for this range because every project is unique, requiring careful consultation on voltage, insulation, and installation environment.
- Specialist Supply: We source and supply bespoke HV cables to meet the strictest specifications for utility and large-scale industrial projects.
- Technical Consultation: Our experts are available to provide technical support and ensure compliance with all relevant standards.
- Quick Quote: Call us now for immediate pricing and lead times on your specific HV cable requirements.
What Is High Voltage Cable in the UK?
Voltage bands are named differently depending on who is asking. Cable manufacturers and IEC standards class cable from 1kV up to 35kV as medium voltage, and anything above that as high voltage. UK distribution network operators (DNOs) use their own terms: LV runs up to 1kV, HV usually means the 6.6kV, 11kV and 20kV networks, and EHV covers 33kV, 66kV and 132kV. An “11kV HV cable” on a DNO drawing is the same product a manufacturer lists as medium voltage.
As high voltage cable stockists we cover both: 11kV and 33kV distribution cable from our medium voltage cable range, and project-specific cable above 35kV sourced to your specification.
BS7870 High Voltage Cable
BS 7870 is the British Standard for polymeric insulated cables used by distribution and generation utilities, covering fixed installations up to 19/33kV. It is the standard most UK DNOs call up, alongside their own engineering specifications.
- BS 7870-4.10 covers XLPE insulated, copper wire screened cables for 11kV and 33kV networks, supplied as single core or triplex (three single cores twisted together) with copper or aluminium conductors.
- BS 7870-3 covers the low voltage side of the same networks, including Waveform, CNE and concentric service cables.
- Typical construction: compacted stranded conductor, semi-conducting conductor screen, XLPE insulation, semi-conducting insulation screen, copper wire screen and a tough polymeric oversheath.
BS7870 cable price and datasheets: prices depend on conductor material and size, core configuration, drum length and metal markets, so we quote each enquiry individually. Ask for the manufacturer datasheet with your quote. It lists conductor resistance, current ratings in air and in ground, minimum bending radius and standard drum lengths.
BS6622 and BS7835 Armoured HV Cable
Industrial sites, solar farms, data centres and private networks usually specify armoured cable instead. BS 6622 (PVC oversheath) and BS 7835 (low smoke zero halogen oversheath) cover XLPE or EPR insulated cables from 3.8/6.6kV up to 19/33kV, with steel wire armour on three core cables and aluminium wire armour on single cores. Check conductor sizes and ratings on our MV cable size chart.
High Voltage Cable Accessories
Every high voltage cable run needs matched accessories from the same voltage class. We supply:
- MV and HV cable joints: heat shrink, cold shrink and silicone filled joints, including transition joints for paper to polymeric cable
- MV and HV terminations for indoor and outdoor use up to 36kV
- MV compression lugs and connectors
- Cable cleats for single core cables laid in trefoil (see our trefoil cleat size chart)
High Voltage Cable FAQs
Is 11kV cable high voltage?
On UK distribution networks, yes: DNOs call 11kV “HV”. In manufacturer catalogues and IEC standards the same cable is classed as medium voltage, because that band runs from 1kV to 35kV.
What is the difference between BS7870 and BS6622 cable?
BS 7870 cables are utility distribution cables, normally unarmoured with a copper wire screen, laid in DNO networks. BS 6622 cables are armoured and are built for industrial and commercial installations where mechanical protection is needed.
Can you supply high voltage cable cut to length?
Yes. Tell us the length, size and standard and we will confirm stock, drum sizes and lead times. See buying cable by the metre for how our cut-to-length service works.
Need High Voltage Cable Stock Now?
For the best trade prices, immediate stock checks, and rapid delivery quotes on any HV cable, speak directly to our experts.
Call Us for a Quick Price Quote Today
Cable Services supply a wide range of products from leading brands, click here to see a sample range of cables that can offer:
Contact Us
For further details on our products and services please get in touch.
Tel: 0197 854 7310
Email: sales@cableservices.co.uk
Cable Cutting Service
We have invested in an automatic winding and measuring cable cutting machine at our Wrexham facility. This ยฃ90,000 investment reflects our commitment to offering an economically valuable and highly efficient service for our valued customers.
We are known for providing tailored solutions that meet the exact needs of our customers. We recognise the growing demand for a flexible service that eradicates waste and delivers cost efficiencies. The efficiency and precision of this new machine support the industryโs commitment to operational sustainability and allow us to pass on cost savings to our customers.
Free Cable Size Calculator
You determine correct cable sizes. You input voltage parameters. You input load requirements. Our tool ensures BS 7671 compliance. You avoid costly specification errors.