Platinum Signs
Beware Overhead Wires & Underground Services Sign
PSS-WAR-070 · Product data sheet
Data sheet
5 November 2026
https://www.platinumsigns.com.au
Description
Protect workers from overhead and underground electrical hazards with this essential AS 1319 warning sign. Overhead cables and buried services pose serious injury risks on construction, excavation, and utility sites—this sign gives crews the heads-up they need. Manufactured in corflute, polypropylene, Colorbond steel, or vinyl with UV-stable inks that hold colour and contrast in Australian sun. Supplied in four sizes (225×300 mm through 600×900 mm) to suit different viewing distances and site layouts. Platinum Signs adds mounting holes, reflective coatings, and lamination on request; trade pricing and bulk discounts apply.
Final sign type, wording, size, placement and material depend on the site risk, project specification and applicable jurisdiction. Confirm the requirement with the relevant WHS adviser or regulator.
- Category
- Warning Signs
- Sign selection
- Confirm against site requirements
- Artwork
- Off-the-shelf design supplied as shown
- Product code
- PSS-WAR-070
Available materials
| Material | Specification |
|---|---|
| Corflute (5mm) | Lightweight corrugated plastic board. Easy to fix to fences, hoarding, and temporary structures. Indicative service life: Temporary use; exposure and installation affect service life. Typical use: Construction sites, temporary signage, events. |
| Polypropylene (1.6mm) | Rigid plastic sheet suited to indoor and sheltered or general outdoor applications, subject to the print finish and site exposure. Indicative service life: Medium-term use; site conditions apply. Typical use: Warehouses, factories, permanent indoor/outdoor. |
| Colorbond Steel (0.6mm) | Rigid coated sheet steel suited to demanding indoor and outdoor installations. Print life depends on finish, exposure, edges and mounting. Indicative service life: Long-term substrate; print and site conditions apply. Typical use: Permanent installations, harsh environments. |
| Self-Adhesive Vinyl (Sticker) | Peel-and-stick vinyl for smooth surfaces. Walls, doors, machinery, and equipment labelling. Indicative service life: Short- to medium-term use; surface and exposure affect service life. Typical use: Indoor walls, equipment labels, smooth surfaces. |
Available sizes
- • 225 x 300mm (Small)
- • 300 x 450mm (Medium)
- • 450 x 600mm (Large)
- • 600 x 900mm (Extra Large)
Volume pricing — Polypropylene (1.6mm) · 225 x 300mm (Small) (inc. GST)
| Quantity | Unit price | Saving |
|---|---|---|
| 1 | $20.95 | — |
| 5 | $19.27 | -8% |
| 10 | $17.81 | -15% |
| 25 | $15.92 | -24% |
| 50 | $14.25 | -32% |
| 100+ | $12.57 | -40% |
Prices shown for the listed material/size combination and quantities. Savings increase gradually between these quantities. Full configuration pricing is available at https://www.platinumsigns.com.au/safety-signs/warning/beware-overhead-wires-underground-services.
Frequently asked
When is this sign legally required?
Not strictly mandated by statute, but strongly recommended wherever excavation, crane work, or digging occurs near known or suspected utilities. Check with your state's electrical safety regulator and utility locator service (e.g., Dial Before You Dig) for site-specific obligations.
Should I use this sign alongside Dial Before You Dig?
Yes. Dial Before You Dig (1100) marks underground services; this sign reinforces the hazard visually on site. Use both as part of a comprehensive utility-awareness plan.
Which size for a large construction site?
For open sites with long sightlines, use 600×900 mm or 450×600 mm. For confined areas like trenches or scaffolding, 300×450 mm or 225×300 mm is sufficient. Mount at entry points and near work zones.
Does reflective backing help in poor light?
Reflective grades provide different visibility performance. Choose the grade required by the project specification and site conditions, and confirm any road, traffic or high-risk requirement with the relevant authority before ordering.
What's the lead time for large orders?
Stock items ship within 3–5 business days. Orders over 20 units may be quoted separately for bulk pricing and delivery scheduling. Email your requirements to our trade team.