HV Voltage Maintenance – HV Maintenance

We undertake High Voltage Maintenance remedial works during planned inspection works out of hours as well as running repairs and replacements.
New HV installation works, can save your site thousands each year due to the higher efficiency of the latest transformer technologies. Upgrade to protect the environment. Our directly employed staff and both experienced and technically trained with decades of experience in the field. Whether 11kV to 66kV our authorised engineers have the professionally certified capabilities to ensure that every site is successfully serviced and maintained to current legislative standards.


Power Continuity contractors have all the credentials, expertise and certification to provide the most comprehensive ‘ in house’ services, covering design, installation and maintenance of all HV and LV supply equipment and networks, regardless of size and make at any location in the UK.

High Voltage Tailored solutions , bespoke to ensure your sites total safety, efficiency, compliance and reliability 24/7.

FACT- we understand your expectations and can tailor our services to suit your site.

Rest assured, with Power Continuity, you’re working with the most professional and highly competent Electrical HV Engineers, at your service.


HV Services

All our comprehensive maintenance service contracts covers both older installed HV & Transformers as well as newly installed equipment, regardless of manufacturer.

Whether bulk oil switchgear , modern insulated devices, Induction Disc Relays, or even microprocessor based protection units. All our servicing of switchgear, transformers, electrical protection systems, complies with BS 6626 and BS 6423


Emergency call out 24-7

If a breakdown occurs on an HV or LV system it’s an inconvenience, but if the primary HV system fails then you rapidly need an engineer on site , immediately.
We provide same day response for all our contract clients.
Remember – Maintenance is designed to keep equipment in good condition.
Current Regulations state that you must maintain your system regularly.
But delays in maintenance are costly both economically as well as legally.
This applies to all HV systems across your estate. Service-Repair-Certify


Power Continuity offers a full range of options which are bespoke, tailored to your specific HV system as well as offering ‘one off’ remedial maintenance and internal inspections during OOH shutdowns, all carried out to BS6626:1985 and BS6867:1987 standards.
Earthing solutions, including field-based soil resistivity surveys, design options, installation and commissioning.

Our onsite services include:-

  • HV & LV SF6, vacuum and oil filled switchgear maintenance
  • Switchgear modifications
  • Lifting of operational restrictions
  • Discharge testing
  • Visual inspections
  • Earth testing
  • Oil sampling
  • HV Generators
  • Emergency Standby generators


Fault Finding Solutions
Wondering if there may be a fault somewhere in your High Voltage electrical system?

  • Concerned about joints?
  • Joint replacement?
  • Phase shift?

We can provide a thorough fault-finding service with a written diagnostic report and remedial works.
Our engineers perform electrical testing and inspection for all your High Voltage systems to ensure that they are safe, legal and operating within the very best performance parameters.


High Voltage Electrical Installations
Power Continuity provides a full design and build capability for all your HV electrical system requirements, including HV Switchgear, transformers, HV cabling installations, jointing, terminating, and testing. Your project will be expertly managed and co-ordinated by our specialist team, ensuring project completion is carried out to highest, industry leading standards.



For all your HV needs

Contact Power Continuity

0845 055 8455


We’re here to help 24/7


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