JLE HV Tech Services

Expert High Voltage Switching & Installation

• Certified HV switching technicians for safe and reliable operations
• Extensive experience in HV bolted couplers and adapters
• Onsite substation installations – both permanent and temporary

HV Terminations & Jointing

Our trained and experienced HV terminators and jointers handle all termination requirements, from GIS switchgear to pole top terminations. Our expertise includes:

• XLPE and paper lead cable terminations and joints
• XLPE to paper lead crossover jointing
• Experience with leading brands including Raychem, NKT, 3M, Nexans, Elastimold, ABB, Elcon Megarad

HV Testing & Commissioning

Our dedicated testing and commissioning team ensures your HV systems operate efficiently and safely. Our capabilities include:

• HV cable testing and commissioning – Kyoritsu 3128, HVA60, HVA28TD
• Protection relay secondary injection testing – Omicron CMC356, Dobel F6150A
• HV substation testing and commissioning – transformers, CTs, VTs, and system-wide assessments
• New install and routine testing – ensuring ongoing reliability
• Primary injection testing – Omicron CPC100 + CB2
• Cable fault location – EZThump12, Kyoritsu 3128, HVA60
• Power quality analysis and recording – Fluke 435
• Dissipation factor, tan delta, and power factor measurements – Omicron CPC 100 and TD12
• Infrared thermography – FLIR P640
• Transformer oil filtration and analysis – extending equipment lifespan and performance

High Voltage Installation Site Management

JLE Group specialises in the management of high-voltage (HV) installations, ensuring full compliance with NSW and Australian regulatory requirements for HV customers. Our expertise covers the design, installation, and ongoing management of HV infrastructure for industrial and commercial clients. We provide comprehensive compliance documentation, including network authority approvals, protection coordination studies, and operational safety procedures. Our tailored HV maintenance plans ensure system reliability, minimise downtime, and meet all statutory obligations, keeping businesses operational and compliant with regulatory standards.

By partnering with JLE Group, HV customers can be confident that their electrical infrastructure is safe, efficient, and fully compliant with industry regulations.