Danger high voltage cables overhead electrical warning sign
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Danger High Voltage Cables Overhead Electrical Sign

Warns individuals of dangerous overhead high voltage cables to prevent serious electrical hazards.

• Alerts people to the presence of overhead high voltage cables

• Suitable for construction sites, industrial areas, and utility zones

• High-contrast yellow and black design ensures clear visibility

• Available in Rigid Plastic (1mm) and Self Adhesive Vinyl

• Helps reduce the risk of accidental contact with live electrical cables

  • 300mm x 400mm
  • Rigid Plastic (1mm)
  • Self Adhesive Vinyl

£5.72 VAT excluded

£5.72 VAT excluded

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  • Product Overview

    This danger sign clearly warns of high voltage cables located overhead, helping to prevent serious injury or fatal electrical accidents. Featuring a bold yellow background with a black lightning bolt symbol and clear text, it ensures immediate recognition of electrical hazards in high-risk environments.

    Where to Use

    • Construction sites
    • Industrial facilities
    • Utility and maintenance areas
    • Outdoor work zones with overhead cables
    • Electrical infrastructure locations

    Key Features

    • Clear “Danger High voltage cables overhead” message
    • Recognisable electrical hazard symbol
    • High-visibility yellow and black design
    • Easy to read from a distance
    • Durable for long-term safety use

    Materials & Options

    • Rigid Plastic (1mm)
    • 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?
    It should be placed in areas where overhead high voltage cables are present, especially where people or vehicles may pass beneath them.

    Is this sign suitable for outdoor use?
    Yes, when produced in appropriate materials, it is suitable for both indoor and outdoor environments.

    What does this sign indicate?
    It warns that high voltage electrical cables are located overhead and highlights the risk of serious electric shock or injury.

    WAE.37C-SA

    Trade Discounts

    Rainbow Safety supplies safety signs to trade professionals across the UK.

    Our trade customers include:

    • Fire safety service companies
    • Fire risk assessors and safety consultants
    • Electrical wholesalers
    • Facilities management companies

    Approved trade customers receive:

    • Preferential trade discounts
    • Better margins for reselling safety signs
    • Marketing support to help you sell more signs
    • Access to our full range of safety signs
    Trade Customer Success Story
    “Working with Rainbow Safety has transformed our safety sign sales.”
    Before partnering with Rainbow Safety, our safety sign sales were less than £300 per month.
    With the support and marketing tools provided, our sales have grown to over £3,000 per month.

    Fire extinguisher servicing margins are not what they used to be, so supplying safety signs has become a valuable additional revenue stream for our business. On one warehouse safety survey alone we £5,100 in a single order.

    Previously we were regularly asked to supply safety signs but couldn’t compete with internet prices while maintaining healthy margins. Working with rainbowsafety.co.uk.
    Apply for Trade Discounts
    ✓ Quick Approval   •   No Obligation

    Loyalty Rewards

    Rainbow Safety rewards regular customers across the UK who order safety signs on an ongoing basis.

    Examples of our loyalty customers include:
    • Schools and colleges
    • Facilities management companies
    • Contractors and maintenance teams
    • Offices and commercial premises
    Regular Customer Benefits:
    • Preferential pricing for regular customers
    • Free design service for custom safety signs
    • Access to exclusive promotional offers
    • Dedicated account manager if required
    Loyalty Customer Success Story

    “Rainbow Safety has become our go-to supplier for safety signs.”

    We regularly need safety signs for maintenance work, refurbishments and ongoing compliance updates. Since ordering from Rainbow Safety, the process has been straightforward, reliable and cost-effective.

    The loyalty rewards and special offers have helped us save money across repeat orders, while the wide product range means we can usually source everything we need in one place.

    Fast ordering, consistent quality and ongoing rewards have made Rainbow Safety a valuable supplier for our business.

    ✓ Quick Approval   •   No Obligation

    Reviews

    Grade 
    Anthony K.

    We mounted this sign to a fence post outside a warehouse near Waterford. The sign looks good and the warning is obvious. However — if the sign is placed too low or in a cluttered area, it might be missed by taller vehicle drivers until too late. It works best when mounted high and clearly visible from a distance. Still, for price and build-quality, it’s a useful overhead-cable warning.

    Grade 
    Declan R.

    This danger sign is exactly what you need when there are overhead high-voltage cables above. We placed it at the yard entrance on our small utility site. The sign is very visible even from a distance, which helps alert lorry drivers before they enter. The material feels sturdy, and even after a month outside the print and colours remain crisp. Worth the investment if you value safety

    Grade 
    Niamh

    I ordered the vinyl-backed version for a temporary site I was working on. The sign went up easily and looked neat. Over a few weeks with rain and wind it stayed mostly in place, though I’d feel more confident if it were screwed or fixed with bolts rather than relying solely on adhesive. For short-term jobs or as a supplementary warning, it’s fine, but for long-term outdoor use, a rigid-plastic or drilled-mounted version would be safer.

    Grade 
    Lisa K.

    On our construction site we used this sign to warn vehicle drivers and contractors of the overhead cables. The wording and hazard symbol are unmistakable. It’s easy to mount on a wooden post, and despite a few heavy showers the sign shows no signs of fading or damage. Definitely gives extra safety awareness and peace of mind on site.

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