Specialised expertise
Innovative Electrical Engineering and Design
Wilken provides electrical system design services for projects ranging from small system upgrades to multi-million dollar construction, from concept to systems commissioning. Our electrical engineers develop cutting-edge designs focusing on energy savings, maintenance effectiveness, environmental responsibility, and best practices for electrical design.
We provide comprehensive services, from feasibility studies and master planning to design, construction administration, and commissioning.
Our Electrical Infrastructure Capabilities
Wilken delivers the full scope of commercial electrical infrastructure across Sydney and NSW — from high voltage substation design and construction through to underground cable networks, overhead power lines, and streetscape installations. As an ASP Level 1, 2 and 3 accredited contractor, we handle every stage in-house: design, civil works, electrical construction, testing, and energisation.
Substations & High Voltage
Design and construction of padmount and kiosk substations for commercial, industrial and residential distribution networks.
Zone, chamber and surface chamber substation construction including transmission lines, earthing and high voltage cabling.
Full substation design and construction services — from initial engineering through civil works, fit-out and commissioning.
Installation and maintenance of ring main units for medium voltage distribution switching and protection.
SMU installation and integration within high voltage switchboard and distribution infrastructure.
Supply, installation and maintenance of high voltage switchgear, circuit breakers, disconnectors and protection systems.
Design and installation of copper earthing grid systems for substations, commercial buildings and critical infrastructure.
Overhead Infrastructure
Overhead power line installation including pole erection, transmission tower construction and luminaire erection.
Specialist conductor stringing and tensioning for overhead transmission and distribution networks.
Private power pole installation, replacement and upgrade services for residential and commercial properties.
Streetscape electrical works including traffic lights, signal installation, parks and landscape lighting.
Underground Infrastructure
Underground cable installation including duct laying, pillar installation, cable laying and jointing.
Cable trench excavation, construction and backfill for underground electrical and communications infrastructure.
High and low voltage cable jointing including live pot end seals, T-jointing, paper-lead jointing and cable testing.
Construction of cable pits and access chambers for underground power networks and maintenance access.
Hydro excavation and vacuum excavation for safe excavation around underground utilities and cables.
Electrical Supply & Connections
Consumer mains installation, upgrade and replacement — connecting properties to the main power supply network.
Installation and removal of whole current metering equipment in accordance with distributor standards.
Disconnection, reconnection and temporary supply services for renovations, demolitions and new connections.
Installation and maintenance of the point of attachment where overhead service lines connect to properties.
Assessment and management of the point of supply — the boundary between the distribution network and private electrical installation.
Engineering assessment and compliance management at the point of common coupling for embedded generation and large loads.
Completed Projects
Delivering impactful electrical construction services
Over 2000 projects completed across Domestic, Commercial, Industrial, Government Institutions, Shopping Centers, Factories, Hospitals, Medical Institutions & Defence.
Adco Constructions
Established a new triple 1500kVA suburban chamber substation, relocated high-voltage feeders, and upgraded the local streetlighting.
FDC Constructions
Supply, install and commissioning critical high-voltage electrical infrastructure, including 33kV substations and transformers.
Mivac
Installation of two triple and one double chamber substations, decommissioning an existing substation and more.
Great team to work with!
Wilken’s diligence and proactive approach through the project is what ensured the critical HV feeder installation went as smoothly as it did. You have been a great team to work with and look forward to working with yourselves again.
Neil Donald
Associate Director – Area 3
