Protecting underground infrastructure requires more than careful installation—it requires clear, durable and permanent identification of buried services long after the project is complete. RGB Industries’ Australian-made cable marker plates provide a reliable way to identify underground assets, reduce the risk of accidental damage and maintain compliance across civil, electrical and utility environments.
Effective cable marking is critical for contractors, utilities and maintenance teams who rely on accurate, on-site information to work safely. Each marker plate is engineered for long-term performance and can be customised to suit site requirements, asset types and installation methods.
Why Accurate Identification Matters
Clear identification of buried services is essential to maintaining service continuity and protecting workers. Accidental excavation strikes on underground cables and utilities can lead to costly repairs, service outages and significant safety hazards. Safe Work Australia notes that damage to underground electrical cables can cause electric shock, arcing, fire and serious injury, making proper identification and risk awareness a critical part of safe work practices
(Reference: Safe Work Australia – General Guide for Working in the Vicinity of Overhead and Underground Electric Lines).
Similarly, Before You Dig Australia (BYDA) emphasises that underground assets must be accurately located and marked to prevent disruptions, protect essential infrastructure and keep personnel safe during excavation or maintenance activity. Cable marker plates contribute to this requirement by providing a clear, permanent visual reference on site, long after digital plans or paint markings have faded.
With RGB Industries’ cable marker plates, each plate is stamped with arrows, service identifiers or custom text, ensuring buried assets remain easy to locate and identify—even decades after installation.
Built to Perform in the Field
Our cable marker plates are designed to withstand harsh environments and heavy-duty use. Manufactured from corrosion-resistant materials suitable for underground and flush-mounted applications, they maintain legibility and structural integrity over the long term.
Key Features:
Corrosion-resistant construction ideal for soil contact, pit environments and flush-mount installations
Clear, industrial-grade stamping for arrows, labels or service identifiers
Flush-mount formats suitable for concrete slabs, pits, walls and high-traffic pedestrian areas
Durable, low-maintenance design that withstands weathering, load and environmental exposure
Custom sizes and custom labelling options to suit project-specific documentation or asset-management requirements
By offering both standard and custom formats, RGB Industries ensures you have the right marker plate for every buried service, asset type or installation environment.
Applications & industries
Our Australian-made cable marker plates are used across a broad range of industries, including:
Electrical infrastructure – power cables, conduit routes, mains supply and earthing systems
Telecommunications – fibre-optic lines, comms cabling and network backbone assets
Gas and water utilities – service lines and underground distribution systems
Civil construction – roads, footpaths, retaining walls, pits and concrete slabs
Industrial facilities – plant rooms, processing sites and private networks requiring long-term asset identification
Maintenance and asset management – providing clear, repeatable location references for ongoing inspections and upgrades
Wherever underground services are installed, permanent identification helps reduce risk and ensure safe access during future works.
| Code | Description | Photo |
|---|---|---|
| RGB23/1 | Blank |  |
| RGB23/2 | Single Arrow |  |
| RGB23/3 | Double Arrow |  |
| RGB23/4 | Mains Earth |  |
| RGB23/5 | 135° Arrow |  |
| RGB23/6 | Triple Arrow |  |
| RGB23/7 | 90° Arrow |  |
| RGB23/8 | Gas Main | NOT AVAILABLE AT THIS TIME |
| RGB23/9 | Direction Indicators (large arrows) |  |
| RGB23/10 | Cable Marker Flush Square |  |
| RGB23/11 | Loose (small arrows to suit cable marker plates) |  |
| RGB23/12 | 120° Arrow |  |
Why RGB Industries?
Australian-manufactured, ensuring fast turnaround, reliable quality and responsive service
Broad product range giving you the flexibility to choose the right marker plate for each cable type and installation scenario.
Customisation available – loose arrows can be welded in any configuration on a blank plate.
Proven in demanding environments, providing durable, long-term service with minimal maintenance
Get started today
Protect your infrastructure, avoid accidental damage and ensure your buried services are clearly identified. Contact our team to discuss sizes, formats and custom labelling options. Phone +61 (08) 8187 2800 or email sales@rgbindustries.com.au and we’ll help you specify the right cable marker plate for your project.