Danger High Voltage Safety Sign
Warns individuals of dangerous high voltage electrical hazards to prevent serious injury or death
• Alerts people to the presence of high voltage electricity
• Suitable for electrical rooms, substations, and industrial environments
• High contrast yellow and black design ensures clear visibility
• Available in durable materials for indoor and outdoor use
• Helps reduce risk and improve workplace safety compliance
Product Overview
This danger high voltage sign is designed to clearly warn individuals of potentially lethal electrical hazards. Featuring a bold yellow background with a black lightning bolt symbol and clear “Danger High voltage” text, it ensures immediate recognition and helps prevent serious injury or fatal accidents in hazardous environments.
Where to Use
- Electrical rooms
- Substations
- Industrial facilities
- Plant rooms
- Maintenance areas with live equipment
Key Features
- Bold warning symbol and text for instant recognition
- High contrast yellow and black design
- Clearly communicates high voltage danger
- Easy to install in prominent locations
- Supports safer working environments
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?
This sign should be installed near high voltage equipment, such as electrical panels, substations, and restricted access areas.
Is this sign suitable for outdoor use?
Yes, depending on the selected material, it is suitable for both indoor and outdoor environments.
What does this sign indicate?
It warns of the presence of high voltage electricity that could cause serious injury or death.
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.