Danger High Voltage Cables Underground Sign
Warn workers and the public of buried high voltage electrical cables with this Danger High Voltage Cables Underground Sign.
• Clearly warns of underground high voltage cable hazards to help prevent accidental contact
• Ideal for construction sites, excavation areas and industrial zones
• High-contrast yellow and black design ensures maximum visibility and instant recognition
• Available in Rigid Plastic (1mm), Rigid Plastic (2mm) and Self Adhesive Vinyl
• Helps reduce the risk of electrical accidents and supports safer excavation practices

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Product Overview
The Danger High Voltage Cables Underground Sign provides a clear warning that buried high voltage electrical cables are present below ground. Featuring a bold yellow and black warning design with the recognised electrical hazard symbol, it helps alert workers, contractors and the public to hidden electrical hazards before excavation or groundworks begin, reducing the risk of serious injury and cable damage.
Where to Use
- Construction sites
- Excavation areas
- Industrial zones
- Utility service routes
- Groundworks and civil engineering projects
Key Features
- High-visibility yellow and black warning design
- Recognised electrical hazard symbol
- Clear and easy-to-read warning message
- Suitable for indoor and outdoor workplace use
- Helps improve awareness of underground electrical hazards
Materials & Options
- Rigid Plastic (1mm)
- Rigid Plastic (2mm)
- Self Adhesive Vinyl
Compliance
This sign supports compliance with UK health and safety regulations, including:
- Health and Safety at Work etc. Act 1974
- Safety Signs and Signals Regulations 1996
Frequently Asked Questions
Where should this sign be installed?
Install it in construction areas, excavation sites, utility corridors and any location where underground high voltage electrical cables are present.
Is this sign suitable for outdoor use?
Yes, when produced in the appropriate material option it is suitable for both indoor and outdoor workplace environments.
What does this sign indicate?
It warns that high voltage electrical cables are buried underground and that excavation or ground disturbance could result in serious injury, electric shock or damage to essential services.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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