Danger High Voltage Electrical Sign
Warn individuals of dangerous high voltage electrical hazards with this Danger High Voltage Electrical Sign.
• Alerts people to the presence of high voltage electrical hazards
• Suitable for electrical rooms, substations, switch rooms and industrial environments
• High-contrast yellow and black design ensures clear visibility and instant recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back), and Self Adhesive Vinyl
• Helps reduce the risk of electric shock and improve workplace safety compliance
Product Overview
The Danger High Voltage Electrical Sign provides a clear warning of dangerous high voltage electrical hazards. Featuring a bold yellow and black warning design with the recognised electrical hazard symbol, it helps alert employees, contractors and visitors to potentially life-threatening electrical risks, supporting safer working practices in hazardous areas.
Where to Use
- Electrical rooms
- Substations
- Switch rooms
- Industrial facilities
- Electrical control panels and plant areas
Key Features
- High-visibility yellow and black warning design
- Recognised high voltage hazard symbol
- Clear, easy-to-read warning message
- Suitable for indoor and outdoor workplace use
- Helps improve electrical hazard awareness
Materials & Options
- Rigid Plastic (1mm)
- Rigid Plastic 1mm (Self Adhesive Back)
- Rigid Plastic (2mm)
- Rigid Plastic 2mm (Self Adhesive Back)
- 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 at entrances to electrical rooms, substations, switch rooms, electrical plant areas and near high voltage equipment.
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 dangerous high voltage electrical equipment is present and that there is a risk of serious injury or death from electric shock.
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
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 invoiced £5,100 on a single order.
We can now compete with internet prices and still make a healthy margin.
We were regularly asked to supply safety signs, but struggled to compete with internet prices while maintaining a worthwhile margin.
Working with Rainbow Safety has changed that. We can now offer our customers a competitive range of safety signs while still making a healthy margin for our business.
Loyalty Rewards
Rainbow Safety rewards regular customers across the UK who order safety signs on an ongoing basis.
- Schools and colleges
- Facilities management companies
- Contractors and maintenance teams
- Offices and commercial premises
- Preferential pricing for regular customers
- Free design service for custom safety signs
- Access to exclusive promotional offers
- Dedicated account manager if required
“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.
Reviews
his Danger High Voltage sign from RainbowSafety gives our plant a more professional look while ensuring safety compliance. The text and symbol are crisp and legible from a distance; no blurring or fading even after weeks outside. We mounted the 1 mm rigid-plastic version on a metal fence near the transformer enclosure, and it’s survived wind and dust without damage. A simple but essential safety board - absolutely recommend for any electrical installation.
he sign itself is well made — bold hazard symbol, clear “Danger High Voltage” text, quality print. We used it on an electrical cabinet in our facility. My only minor criticism: for more open spaces or larger areas, the standard size we ordered might be a bit small. If mounting near a wall or door it works perfectly, but if you want to warn drivers or people from a distance, you might need a larger format. All in all, a dependable hazard sign if placed right.
I ordered the “Danger High Voltage Electrical Sign” for our electrical switch-room door and it looks excellent. The material feels sturdy (we went for the 3 mm aluminium composite version) and the print is bright and easy to read from a few metres away. It’s visible even in dimly lit areas, which is important near live panels. Installation was straightforward — we drilled it onto the door and it’s stayed put through regular site traffic. Solid sign and good value, especially considering the peace of mind it gives about site safety.
We used this High Voltage warning sign at a small substation facility in Ontario. The rigid-plastic version we selected is weather-resistant and held up well through rain and cold weather. The wording and the lightning-bolt hazard symbol are unmistakable - very clear hazard communication for workers and visitors. We positioned it where anyone entering the area sees it immediately. Very satisfied with quality and usefulness.
