James Joel High Voltage Electrical ServicesLIC. 87095 QLD | 348612C NSW
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Specialist HV / EHV cable jointers · Toowoomba QLD

We joint the cables that carry the grid.

High and Extra High Voltage cable jointing and terminations on all cable types from 6.6 kV up to 220 kV, plus full HV testing and commissioning. Based in Toowoomba, and we will travel anywhere around Australia and the Pacific Islands.

Voltage range we work on

Distribution through to transmission class

Cable jointing & terminations

Every cable type. Every joint.

From paper-insulated legacy circuits to modern XLPE and fluid-filled pipe-type transmission cables, we make joints and terminations that last the life of the asset.

Voltage

6.6 kV → 220 kVHVMVEHV

Cable types

PILCXLPEHPFF Pipe Type Fluid Filledand more

Joints

StraightTransitionBreach JointsT-JointsLoop Joints

Terminations

Sealing end terminationsGIS plug terminationsSolar & wind farm HV / MV / EHV terminations

Accessories

All Cable Accessories
Our technical services

Test. Commission. Find the fault.

Protection, primary plant and cable testing for new builds, existing infrastructure, compliance and maintenance programs.

PROTECTION

HV / LV relay testing & commissioning

Relay testing for newly built switch rooms, retests for existing infrastructure, compliance and maintenance.

INJECTION

Primary & secondary injection testing

Primary and secondary injection testing of protection schemes and current paths.

CT

Current transformer analysis

All tests associated with CTs.

TX

Transformer analysis

All tests associated with transformers, plus transformer maintenance.

CABLE

HV cable testing & fault location

Underground cable fault location, identification and repair.

  • 5 kV IR
  • 10 kV IR
  • VLF
  • Tan Delta
  • DC Hipot (if specified)
EARTH

Earth testing

Earth testing for substations, switch rooms and HV installations.

SectorsSolar FarmsWind FarmsHeavy IndustrialMining
Beyond high voltage

More we can take on

The same crew, the same standards, across the rest of your electrical scope.

Off-grid solar

Designed and installed

We design and install off-grid solar systems of various sizes, built to your requirements.

Labour hire

Cover for the mines

Short of staff? We provide labour hire to mine sites, surface and underground.

General electrical

All other electrical work

All other electrical work undertaken. Ask us about your job.

Where we work

Based in Toowoomba. On site across Australia & the Pacific.

Every job leaves from our Toowoomba base, and we will travel anywhere around Australia and the Pacific Islands: metro substations, regional solar and wind farms, or remote mine sites.

Base · Toowoomba, Queensland
Service area · Australia and the Pacific Islands
Range · 6.6 kV to 220 kV
Sites · Utility, Renewables, Industrial, Mining
Also from James Joel High Voltage Electrical Services

Spliceon cable jointing training

Learn HV cable jointing from people who do it in the field.

Visit spliceon.online ↗
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Contact

Got a cable that needs jointing?

Australia · Phone / WhatsApp+61 467 503 744
Papua New Guinea+675 7485 8664
Solomon Islands+677 74 84 728
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BaseToowoomba, QLD · will travel anywhere around Australia & the Pacific Islands