Australian Power Equipment underground electrification: design and safety notes for mine engineers
Reviewed by Joe Ashwell

First reported on Australian Mining
30 Second Briefing
Australian Power Equipment is designing mine-wide electrical ecosystems for underground electrification, supplying modular substations, flameproof switchgear and high-voltage distribution tailored to remote, hot and dusty headings. Co-directors Andrew Cockbain and Abby Crawford emphasise integration of variable-speed drives, soft starters and real-time protection relays to manage high inrush currents from battery-electric loaders and jumbo chargers. The approach focuses on IEC-compliant, arc-fault-contained enclosures and condition monitoring to cut unplanned outages and support staged transition from diesel to fully electric fleets.
Technical Brief
- Flameproof enclosures are engineered to contain internal explosions without propagating flame into gassy headings.
- Switchgear and substations are specified for high dust ingress protection (IP ratings) and elevated ambient temperatures.
- Equipment layouts consider restricted underground clearances, minimising trip hazards and maintaining egress routes around electrical rooms.
- Protection schemes are coordinated to trip upstream selectively, avoiding full-level blackouts that compromise refuge and ventilation.
- Remote racking and interlocked access doors reduce worker exposure during switching, isolation and fault investigation.
- Condition monitoring data are integrated with mine control to flag overheating, insulation degradation and partial discharge early.
Our Take
With 207 Mining stories and 456 tag-matched pieces in our database, safety-focused underground items are increasingly linked to equipment and product design rather than just procedural controls, which is the space Australian Power Equipment is operating in.
Electrification underground in Australia intersects with the same safety-regulatory mindset seen in the HSE enforcement case in the UK roofing sector, signalling that equipment suppliers like Australian Power Equipment will be judged not only on performance but on how clearly their systems support statutory duty-of-care obligations.
The Metro Tunnel article on Melbourne’s 9 km twin rail tunnels underlines how large, complex underground works in Australia are now standard, suggesting that scalable, mine-ready electrification solutions from Australian Power Equipment could also find applications in major civil tunnelling projects where diesel reduction and ventilation loads are critical cost drivers.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
Related Articles
Related Industries & Products
Mining
Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.
Tunnelling
Specialised solutions for tunnelling projects including grout mix design, hydrogeological analysis, and quality control.
CMRR-io
Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.
QCDB-io
Comprehensive quality control database for manufacturing, tunnelling, and civil construction with UCS testing, PSD analysis, and grout mix design management.
HYDROGEO-io
Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.


