Private High Voltage Electricians

Wilken Service Pty Ltd

Private High Voltage Electricians

Wilken Service Pty Ltd is the company you need to call for all your private high voltage needs. Our team or High Voltage electricians provide a diverse range of services that will meet all your needs. No job is too big or too small.

You can rely on Wilken Service to get the job done right, on time, and within budget. We’re passionate about electrical work and it shows in our exceptional workmanship. Wilken Service holds the following accreditations:

Level 1 ASP (Accredited Service Provider) Grade ‘A’
Level 2 ASP (Accredited Service Provider) Grade ‘A’
33kV Transmission Works
132 kV Transmission Works

Request a quote

(02) 8577 3000

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

Padmount Kiosk Substations

Design and construction of padmount and kiosk substations for commercial, industrial and residential distribution networks.

Zone Substations

Zone, chamber and surface chamber substation construction including transmission lines, earthing and high voltage cabling.

Electrical Substations

Full substation design and construction services — from initial engineering through civil works, fit-out and commissioning.

Ring Main Units (RMU)

Installation and maintenance of ring main units for medium voltage distribution switching and protection.

Source Measure Units (SMU)

SMU installation and integration within high voltage switchboard and distribution infrastructure.

High Voltage Switchgear

Supply, installation and maintenance of high voltage switchgear, circuit breakers, disconnectors and protection systems.

Earthing Grids

Design and installation of copper earthing grid systems for substations, commercial buildings and critical infrastructure.

Overhead Infrastructure

Overhead Power Lines

Overhead power line installation including pole erection, transmission tower construction and luminaire erection.

Conductor Stringing

Specialist conductor stringing and tensioning for overhead transmission and distribution networks.

Private Power Poles

Private power pole installation, replacement and upgrade services for residential and commercial properties.

Traffic Signal Installation

Streetscape electrical works including traffic lights, signal installation, parks and landscape lighting.

Underground Infrastructure

Underground Power Lines

Underground cable installation including duct laying, pillar installation, cable laying and jointing.

Cable Trenches

Cable trench excavation, construction and backfill for underground electrical and communications infrastructure.

Cable Jointing

High and low voltage cable jointing including live pot end seals, T-jointing, paper-lead jointing and cable testing.

Cable Pit Construction

Construction of cable pits and access chambers for underground power networks and maintenance access.

Non-Destructive Excavation

Hydro excavation and vacuum excavation for safe excavation around underground utilities and cables.

Electrical Supply & Connections

Consumer Mains

Consumer mains installation, upgrade and replacement — connecting properties to the main power supply network.

Electricity Meter Installation

Installation and removal of whole current metering equipment in accordance with distributor standards.

Electricity Disconnection

Disconnection, reconnection and temporary supply services for renovations, demolitions and new connections.

Point of Attachment

Installation and maintenance of the point of attachment where overhead service lines connect to properties.

Point of Supply

Assessment and management of the point of supply — the boundary between the distribution network and private electrical installation.

Point of Common Coupling

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
MPark Building C
Established a new triple 1500kVA suburban chamber substation, relocated high-voltage feeders, and upgraded the local streetlighting.
FDC Constructions
Moorebank Intermodal Precinct
Supply, install and commissioning critical high-voltage electrical infrastructure, including 33kV substations and transformers.
Mivac
Harbourside
Installation of two triple and one double chamber substations, decommissioning an existing substation and more.

View more projects

What is a High Voltage Electrician?

A high voltage electrician, sometimes called a power systems operator, or substation technician, is a skilled and highly trained professional who specialises in installing, maintaining, and repairing high voltage electrical systems.

Their deep understanding of electrical theory and safety protocols is essential for managing the inherent risks associated with high voltage systems. Some of their primary responsibilities involve working with power lines, electrical substations and transformers.

These electricians often carry out tasks such as testing electronic circuits, repairing transformers, installing power lines, and maintaining high voltage systems. They are indispensable during events like power outage restoration, system inspection, equipment maintenance, dealing with electrical failures, and power system installations.

Their work mainly takes place in power stations, electrical substations, industrial plants, and sometimes at construction sites. Overall, the role of a high voltage electrician is highly specialised and can be high-risk, requiring certified training and a high degree of caution.

What is the difference between low voltage and high voltage electricians?

The primary difference between low voltage and high voltage electricians lies in the voltage levels they handle, the specific types of jobs they undertake, and the levels of safety and training required for each role.

Low voltage electricians, often work to distribute power to a customer for domestic or industrial use, basically, to residential homes or small commercial businesses. Within Australia, low voltage refers to a voltage exceeding extra-low voltage, but not exceeding 1000 Volt alternating current (a.c.) or 1500 Volt direct current (d.c.) as defined within the Australian / New Zealand Standard AS/NZS 3000 — Wiring Rules.

On the other hand, high voltage electricians are involved with power transmission and distribution systems. Within Australia “High Voltage” is considered as any level exceeding Low Voltage” according to the definition in AS/NZS3000:

Extra-low voltage: Not exceeding 50 V a.c. or 120 V ripple-free d.c.
Low voltage: Exceeding extra-low voltage, but not exceeding 1 000 V a.c. or 1 500 V d.c.

The work of high voltage electricians is considered more hazardous due to the potential dangers associated with high voltage electricity. As such, the job requires rigorous safety protocols and experienced personnel.

Regardless of the voltage they work with, both types of electricians need a strong foundation in their trades. They need to be trained in using various tools, understanding electrical systems, and ensuring safety. However, the tools used and the specific nature of the job can vary significantly.

High voltage electricians tend to need more heavy-duty tools and safety equipment due to the increased risks associated with their work. Conversely, low voltage electricians might work with more delicate, precision-based tools.

Career paths for both types of electricians involve hands-on labour and usually require a mix of formal education and apprenticeship. The skillset for high voltage electricians is more specialised, given the high-risk nature of their work, and they generally require more extensive training.

Regardless of the type of electrician, abilities such as problem-solving, physical stamina, and attention to detail are essential. The ultimate goal of any electrician, regardless of voltage, is to ensure the safe and effective operation of electrical systems.

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.