HV Switching & Operations
High voltage operations require authorised personnel, meticulous switching programs and absolute adherence to safety procedures. Our HV teams are trained, authorised and experienced in live HV environments across industrial and infrastructure facilities.
Overview
High voltage switching is one of the most safety-critical activities in electrical work. The consequences of an error — an incomplete isolation, an incorrect switching sequence, a failure to verify dead — can be fatal. It requires authorised personnel, documented switching programs, independent verification and a culture that prioritises safety over programme pressure.
Reprise Electrical's HV operations team holds all required authorisations for working on and near HV systems up to 33kV. We manage the complete HV switching and isolation process — from developing the switching program and coordinating with the network authority through to executing the switching sequence, verifying isolation, applying earths and issuing the authority to work.
For facilities with on-site HV networks, we provide both planned and emergency HV response. Our authorised persons understand the specific requirements of Ausgrid, Endeavour Energy and TransGrid — and have the experience to navigate network authority processes efficiently without compromising safety.
Scope of Works
HV switching programs and authorisation documentation
Isolation and earthing procedures for maintenance access
Network authority interface — Ausgrid, Endeavour Energy, TransGrid
HV cable jointing and termination — 11kV and 33kV
HV switchgear operation and maintenance
Protection relay testing and setting verification
HV cable fault location and repair
Load transfer and network reconfiguration
Emergency HV fault response
Authorised persons training and competency assessment
HV safety management documentation
Who It's For
Industrial facility owners with on-site HV networks
Infrastructure asset owners requiring HV maintenance access
Mining operations with HV underground distribution
Data centres and critical facilities with HV supply
Renewable energy operators requiring network authority interface
Related Capabilities