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Danger High Voltage No Admittance Authorised Personnel Only Signs
£7.99
In stock
SKU
MM031K*
Danger High Voltage No Admittance Authorised Personnel Only Signs help you warn of electrical danger while restricting entry to trained staff in plant rooms, switchgear areas and service spaces.
Danger High Voltage No Admittance Authorised Personnel Only Signs combine an electrical hazard warning with a clear access restriction, helping you protect staff, contractors and visitors around switchgear, plant rooms, substations and other controlled high voltage areas.
Where High Voltage Authorised Access Signs Should Be Installed
You should install this sign on doors, gates, barriers and approach points before anyone reaches exposed electrical risk. It works best where a person must decide whether they are permitted to enter, such as switch rooms, transformer areas, control rooms and maintenance-only spaces.
Viewing Distance Guidance for Safe Recognition
For close door reading, 150 x 300 mm is suitable at around 2–4 metres. For wider approaches, 300 x 500 mm gives clearer recognition at roughly 5–8 metres, especially where staff or contractors approach from a corridor, yard or plant access route.
What This Sign Should Change on Site
Once fitted in the right position, this sign should make people stop before entering, recognise the electrical hazard quickly and understand that access is limited to authorised personnel only.
✅ Reduces casual entry into high voltage locations
✅ Gives contractors a clear access decision point
✅ Reinforces restricted working around electrical equipment
Technical Details for High Voltage Restricted Entry Signage
- Sign message: “Danger High Voltage”
- Sign message: “No Admittance Authorised Personnel Only”
- Dual side-by-side message format
- Conforms to EN ISO 7010
- EN ISO 7010 code: W012
- Conforms to BS 5499 sign regulations
- Sign type: hazard warning and prohibition
- Purpose: restrict access to high voltage areas
- Orientation: landscape
- Shape: rectangle
- Background colours: yellow and red
- Text colours: black and white
- Symbol colours: black and red
- Pictogram: electric icon inside warning triangle
- Pictogram: no admittance symbol inside prohibition circle
- Finish: glossy film surface
- Non-photoluminescent
- Non-reflective
- Materials: rigid plastic or self-adhesive vinyl
- Size option: H 150 x W 300 mm
- Size option: H 300 x W 500 mm
- Supplied as: single sign
- Material thickness: various
- Rigid plastic fixings: available separately
- Vinyl fixing: self-adhesive backing
- Mounting: wall, door or flat surface
- Display area: indoors or outdoors
Fitting Advice for High Voltage Restricted Access Points
❌ Placement errors to avoid
- ❌ Fitting it after the entry point where the decision has already been made
- ❌ Placing it behind parked equipment, open doors or stored materials
- ❌ Using the smaller size where people approach from several metres away
❌ When this sign is the wrong choice
- ❌ Do not use it where access is allowed to general staff or visitors
- ❌ Do not rely on vinyl for rough masonry or uneven external surfaces
- ❌ Do not use it alone where a physical lock, barrier or permit system is required
✅ Better fitting decisions
- ✅ Mount at eye level on the approach side of the door, gate or barrier
- ✅ Use rigid plastic where the sign may face knocks, moisture or outdoor exposure
- ✅ Pair with controlled access measures where high voltage entry must be actively managed
High voltage no admittance sign questions answered
What are Danger High Voltage No Admittance Authorised Personnel Only Signs? They are dual-message safety signs used to warn about high voltage danger while making it clear that only authorised personnel should enter the area.
Where should I use this sign instead of a standard high voltage sign? Use it where the hazard is combined with restricted access, such as electrical rooms, substations, switchgear doors, maintenance areas and controlled plant spaces.
Which size should I choose for a door or gate? Use 150 x 300 mm for close-range doors and smaller entrances. Choose 300 x 500 mm where the sign must be seen earlier from a wider approach.
Is self-adhesive vinyl suitable for every surface? Vinyl is best for clean, smooth, dry surfaces. For rough, dusty, damp or outdoor surfaces, rigid plastic is usually the better choice.
Does this sign help with electrical safety compliance? Yes. The supplied specification states conformity to EN ISO 7010, W012 and BS 5499 sign regulations, helping you present a recognised high voltage warning.
Practical Features and Site Benefits of This High Voltage Access Sign
Features
- ✓ Combines high voltage warning and no admittance instruction
- ✓ Uses recognised W012 electrical hazard symbol
- ✓ Landscape format suits doors, gates and access points
- ✓ Available in rigid plastic or adhesive vinyl formats
Benefits
- ✓ Helps you control who enters dangerous electrical areas
- ✓ Reduces misunderstanding before staff reach live equipment
- ✓ Supports clearer contractor and visitor access control
- ✓ Gives you a stronger visual warning at restricted entry points
Compare high voltage access control signs
Where you need a shorter exclusion message, use danger high voltage keep out signs for clear electrical risk control. Useful on substations, plant rooms and restricted service areas.
For no-entry wording with a caution tone, compare caution high voltage keep out no entry signs where you want firm but practical access guidance. Suitable for doors, gates and electrical cupboards.
When the sign may face impact or tampering, choose polycarbonate danger high voltage signs for tougher placement needs. A good option for demanding indoor or outdoor electrical areas.
For larger site coverage, consider danger high voltage no admittance signs in packs of 6 when several access points need matching warnings. Helpful for perimeter gates and repeated plant room entrances.
You can also browse high voltage warning signs for electrical hazard areas when comparing materials, messages and formats. This helps you match the wording to the real access risk.
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