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Danger High Voltage and No Admittance Authorised Personnel Only Dual-Message Sign – Clear two-part safety sign for electrical hazard zones. ISO 9001 certified.
Professional design, supply, and installation of all types of traffic signs across the UK.
Learn More 🚀The Danger High Voltage and No Admittance Authorised Personnel Only Dual-Message Sign is a vital safety display designed for electrical hazard zones and restricted areas. Combining a yellow high voltage triangle with a red no admittance panel, this sign delivers two critical warnings to protect workers, contractors, and the public from risk.
This sign is ideal for use in substations, switchgear rooms, electrical panels, construction zones, and industrial facilities. It helps site managers comply with ISO 9001 standards and reduce liability by warning of high voltage and enforcing entry restriction for non-authorised individuals.
Manufactured in the UK using premium materials including 3mm Foamex, Corriboard, composite aluminium, and vinyl, this sign is weather-resistant and suitable for both permanent and temporary use. Available in multiple sizes with mounting options like self-adhesive backing, pre-drilled holes, and channel rails.
This dual-message sign saves space while enhancing clarity. The bold icons and colour contrasts maximise visibility from a distance, ensuring safety protocols are understood before entry.
Its durability and customisation options make it a top choice for utility companies, commercial contractors, and facility managers needing to display essential electrical safety information.
✔️ Dual hazard and prohibition warning in one sign
✔️ ISO 9001 certified for UK workplace compliance
✔️ Fade-resistant and waterproof materials
✔️ Available in multiple sizes and finishes
✔️ Trade discounts available for councils and contractors
✔️ Direct from UK manufacturer
• Electrical switch rooms and substations
• Utility infrastructure and energy plants
• Construction sites and hoarding panels
• Restricted electrical control rooms
• Commercial and industrial sites
• Temporary access-controlled work zones
• Dual-message sign for high voltage and access restriction
• ISO 9001 certified and site-ready
• Tough materials for harsh environments
• Custom mounting and size options
• Manufactured in the UK
| Feature | Details |
|---|---|
| Product Name | Danger High Voltage and No Admittance Authorised Personnel Only Dual-Message Sign |
| Sign Type | Electrical Hazard + Access Restriction Safety Sign |
| Substrate Options | Vinyl Sticker, Composite Aluminium, 3mm Foamex, 4mm Corriboard |
| Fixing Options | Pre-Drilled, Channel Rail, Self-Adhesive |
| Available Sizes (mm) | 300×150, 200×250, 500×300 |
| Compliance | ISO 9001 |
| Section | Link & Description |
|---|---|
| 🛒 Shop All Safety Signs | Browse all UK-compliant safety and warning signs |
| ⚙️ Installation Services | We offer full installation support across the UK |
| 📦 Bulk Orders? | Request bulk discount pricing for councils or large sites |
| 📚 Safety Guidance | HSE Regulations – L64 Guidance on Safety Signs |
Vinyl, Print-direct |
|
| Substrate | Stickers, 1mm PVC Plastic, 2.5mm Composite, 3mm Black Plastic, 3mm Foamex, 4mm White Corriboard, 5mm Foamex |
| Fixing | Channel, Plate Only, Self-Adhesive |
| Size | Width(mm) x Length (mm) | 200×250, 300×150, 500×300 |
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