Straight, plain-English answers to how Sydney's electrical network actually works — consumer and service mains, smart metering under Power of Choice, three-phase supply, private poles, points of attachment and defect notices. Written by the Level 2 ASP team that does the work under the NSW Service and Installation Rules and the rules of Ausgrid, Endeavour Energy and Essential Energy.
The consumer mains are the cables that carry electricity from the point of attachment to your main switchboard. Here's what they do, who is responsible for them, and the warning signs they need attention.
The service mains are the network's cables that connect the distribution grid to your property. Here's how overhead and underground service lines work, who owns what, and where the consumer's responsibility takes over.
Three-phase power delivers more capacity than a standard single-phase supply. Here's how it works, the loads that need it, and what a single-to-three-phase upgrade involves.
If the pole on your property carries the service line to your building, it's probably a private pole — and it's your responsibility. Here's how to tell, what can go wrong, and when it needs replacing.
The point of attachment is where the network's service line connects to your building or private pole. It's small, but it defines an ownership boundary — and when it fails, it's a Level 2 job.
Smart meters are replacing old accumulation and off-peak meters across NSW. Here's how they work, who installs them under Power of Choice, and what a Level 2 ASP does in the process.
When a building's demand is too high to meter directly, current transformers step the current down so a meter can measure it. Here's how CT metering works and when it's required.
Underground consumer mains are increasingly the standard across new Sydney estates. Here's how underground services are designed, trenched, connected and maintained under NSW network rules.
Overhead service lines still connect a huge share of Sydney properties to the grid. Here's how overhead mains are attached, sized and maintained under NSW network rules — and when they need a Level 2 ASP.
Ausgrid runs the poles, wires and network across eastern and northern Sydney, the Central Coast and the Hunter. Here's what that means for your connection — and what a Level 2 ASP does on the Ausgrid network.
Endeavour Energy runs the network across western Sydney, the Blue Mountains and the Illawarra. Here's what that means for your connection — and what a Level 2 ASP does on the Endeavour network.
Essential Energy runs the network across regional and rural NSW. Here's what that means for your connection — and what a Level 2 ASP does on the Essential Energy network.
A defect notice from the network means part of your electrical connection has been found unsafe or non-compliant. Here's what the classes mean, how long you have, and how a Level 2 ASP rectifies them.
Every construction site in NSW needs a compliant temporary builders supply before work can safely begin. Here's how a Level 2 ASP installs, energises and eventually removes one.
Disconnecting and reconnecting your supply safely is core Level 2 ASP work — whether for demolition, a switchboard upgrade, a supply relocation or an emergency make-safe. Here's how it works in NSW.
Print-ready A4 guides written by our Level 2 ASP team. Keep them on the fridge, in the site office or on your phone for when you need them.
What to do when you receive an Ausgrid or Endeavour Energy defect notice — categories, timeframes, who can fix what and a before-you-call checklist.
A safety-first checklist for after storm damage — what to never touch, immediate steps, what a make-safe involves and how to document damage for insurance.
What builders and site managers should have ready before a Level 2 ASP installs a temporary builders supply — site info, preparation and final checks.
Every guide in this centre is backed by a Level 2 ASP team accredited across Ausgrid, Endeavour Energy and Essential Energy. Free assessment, 24/7 emergency response.