What Are the Sealing and Labelling Rules for Shared Switchboards in Sydney Strata Buildings?

What are the sealing and labelling rules for shared switchboards in Sydney strata buildings? Under the Service and Installation Rules of New South Wales, every piece of unmetered equipment on the line side of your meters, including service protection devices and unmetered links, must be sealable so tampering can be detected, while in multi unit buildings, the service equipment and meter panel belonging to each tenancy must be permanently labelled with which occupancy it belongs to, so nobody is left guessing which section of a shared board controls which apartment.

⚡ Quick Answers: Strata Switchboard Sealing and Labelling

• What has to be sealed on a shared switchboard? All equipment on the line side of the meters, including service protection devices, unmetered links and metering connections, must be enclosed and sealable.
• Who can break and replace a seal? Only an authorised person, which may be a metering provider, the electricity distributor or a Level 2 accredited service provider, and a charge may apply.
• Can a tenant replace their own blown unmetered fuse? Yes, provided the board is designed with a sealable escutcheon panel that lets this happen without distributor staff needing to remove and reseal equipment first.
• What does tenancy labelling actually need to show? Each occupancy's service equipment and meter panel must be permanently labelled with which unit or tenancy it belongs to, not a vague or generic description.
• Why does this matter more in a strata building than a single house? With several tenancies sharing one switchboard location, unclear labelling or missing seals create real safety and billing risks that simply do not exist in a standalone home.
• Who is responsible for keeping labelling current after renovations? The owners corporation, usually acting through a licensed electrician, since labelling has to reflect the building as it actually is, not as it was originally built.

1. Why unmetered equipment has to be sealed in the first place

Equipment on the line side of the meter, ahead of where your consumption is actually measured, sits in a sensitive position. If it could be accessed and altered without anyone noticing, it would undermine both safety and billing accuracy. SIRNSW addresses this by requiring the customer to suitably enclose and provide for sealing of all equipment installed on the line side of the meters, along with all metering connections. In most cases this sealing uses nylon or plastic sealing wire, a simple but effective tamper evident method that shows immediately if someone has interfered with the equipment since it was last checked.

This rule sits alongside the sealing requirements we cover in our guide to service active links, neutral links and off peak load control, since several of these same unmetered components need to be sealed as part of a complete, compliant installation.

2. Broken seals must be fixed by an authorised person

If a seal on a service protection device or other unmetered equipment is broken, for whatever reason, it must be resealed by an authorised person. That might be a metering provider, the electricity distributor, or a Level 2 accredited service provider, and a charge may apply depending on the circumstances. This is not a box ticking exercise. A broken seal with no record of who broke it or why is exactly the kind of thing that triggers a closer look during a electrical safety inspection, since there is no way to confirm the equipment behind it has not been tampered with.

3. Tenants can still replace their own unmetered fuses, with the right design

A common misconception is that sealing locks tenants out of all basic maintenance. SIRNSW specifically addresses this for multiple, single and large installations: a customer's qualified representative must be able to replace ruptured unmetered fuses without electricity distributor staff needing to attend, remove seals and reseal equipment themselves. The way this works in practice is through sealable escutcheon panels, which can be used with either front or back connected fuses or circuit breakers, letting routine fuse replacement happen without breaking the integrity of the wider sealing arrangement.

Getting this balance right is a design decision made at the time the switchboard is built or upgraded, which is why it is worth raising directly with your electrician during any switchboard upgrade in a strata or multi tenant building.

4. Every tenancy's gear needs its own permanent label

In multi unit sites, SIRNSW requires service equipment and meter panels to be permanently labelled showing which occupancy each item belongs to. This sounds obvious until you walk into an older strata switchboard room and find a wall of identical looking meters and breakers with faded, missing or simply wrong labels, often the result of years of unit renumbering, subdivisions or renovations that were never reflected back onto the board.

Clear, current labelling matters for more than convenience. If an electrician needs to isolate supply to a specific unit during an emergency, or a technician is trying to identify which service protection device belongs to which tenancy during a fault, incorrect labelling turns a quick job into a slow, risky one. It is one of the most common defects our technicians flag during routine work in older apartment blocks and terraces converted into multiple dwellings.

5. Where this fits with the building's wider compliance picture

Sealing and labelling do not exist in isolation from the rest of a strata building's electrical compliance. They connect directly to the access and location requirements covered in our guide to where your meter box can legally go in a multi occupancy building, and to the broader obligations facilities and strata managers carry for keeping shared electrical infrastructure compliant over time. A switchboard room that meets the access rules but has incorrect or missing tenancy labels is only half compliant, and the same goes for a well labelled board that has unsealed, unmetered equipment sitting exposed behind an open panel.

6. What a strata committee should check now

If your strata building has not had its switchboard sealing and labelling reviewed in some time, it is worth commissioning an assessment rather than waiting for a fault or a sale to force the issue. A straightforward site visit from a Level 2 electrician can confirm every seal is intact and correctly applied, every tenancy is clearly and permanently labelled, and any escutcheon panels are correctly designed to let routine fuse replacement happen without unnecessary callouts. For buildings going through a broader refurbishment, this is also the ideal time to fold sealing and labelling corrections into a planned power supply upgrade rather than treating it as a separate project later.

Why it's Level 2 ASP work

Sealing and labelling requirements sit inside the same service equipment framework that only a Level 2 accredited service provider can legally work on. Reinstating a seal, correcting tenancy labelling in a way the network will accept, and designing a compliant escutcheon panel arrangement all require the specific accreditation a Level 2 electrician holds.

How High Demand Electrical helps

High Demand Electrical works with strata committees and building managers across Sydney's West, South West and Sutherland Shire as a licensed local team, not a call centre, bringing shared switchboards up to current sealing and labelling standards without disrupting residents any more than necessary. We check every seal, correct tenancy labelling so it matches the building as it stands today, and design escutcheon panels that let tenants handle routine fuse replacement safely and independently. Our sister site's guide to strata main switchboard replacement planning covers how these sealing and labelling corrections are best timed alongside a full board replacement in an older inner west building.

Strata Switchboard Sealing and Labelling FAQs (Sydney)

Can our strata committee reseal a switchboard ourselves after maintenance?

No. Resealing must be done by an authorised person, such as a metering provider, the electricity distributor or a Level 2 accredited service provider, not by building staff or a general contractor.

What if a unit's meter panel has no label at all?

This is a defect that should be corrected as soon as possible. See defect notice rectification for how we handle this kind of compliance issue alongside any related network notices.

Does every tenant need access to their own isolation switch as well as a label?

Yes, correct labelling and correct isolation go together. See our guide on meter isolation switch rules for the separate requirements covering individual isolation devices.

Who pays for correcting sealing and labelling in a strata building?

This is generally an owners corporation responsibility as part of common property maintenance, though the specific arrangement can vary, so check with your strata manager and your Level 2 electrician early in the process.

How often should a strata switchboard's labelling be reviewed?

There is no fixed SIRNSW interval for this specifically, but it is worth checking whenever units are renumbered, subdivided or renovated, or as part of a periodic electrical safety inspection.

Is your strata building's shared switchboard overdue for a sealing and labelling check? Get an Electrical Safety Inspection Quote from High Demand Electrical, or call 0402 559 777. Every job starts with a site assessment, since the right fix depends on the building's layout, its current labelling and how its unmetered equipment is currently sealed.