High-voltage services

Reliable power from source to load

We manage the full journey—engineering design, procurement, installation and validation—so you energize safely and on schedule.

High voltage services

Integrated delivery for HV and MV networks

Our engineers collaborate with utilities and EPC teams to align designs, select compliant materials and execute field works with documented QA/QC.

  • VLF, insulation resistance, sheath and partial discharge testing pre-energisation.
  • Protection coordination, relay configuration and FAT/SAT documentation.
  • Construction supervision, safety leadership and as-built records for handover.

Whether you need supply-only support, turnkey installation or a multi-year O&M partner, Josta Cables scales teams and equipment to meet your network demands.

Talk to us about your line routes, grid codes and energisation dates—we’ll align a delivery plan that keeps your project moving.