High voltage symbol
A warning of electrical danger, such as high voltage.
These identify the hazard a sign warns of. For what to do in a hazard area, follow the site’s own signs, instructions and trained staff.
How to read it
In Great Britain the sign is a warning triangle, Danger: electricity. In the United States, OSHA requires permanent warning signs reading substantially “DANGER - HIGH VOLTAGE - KEEP OUT” at the entrances to spaces with electric equipment over 600 volts, and “High Voltage” is one of its examples of the message on an accident prevention tag.
Also searched as: danger high voltage, electrical hazard symbol.
More hazard warning signs
Sources
- The Health and Safety (Safety Signs and Signals) Regulations 1996, Schedule 1, SI 1996/341, legislation.gov.uk (UK Government)
- Electrical: general (29 CFR 1910.303), 29 CFR 1910.303, U.S. Occupational Safety and Health Administration, 1910.303(h)(5)(iii)(B)
- Specifications for accident prevention signs and tags (29 CFR 1910.145), 29 CFR 1910.145, U.S. Occupational Safety and Health Administration, 1910.145(f)(2)
Last reviewed September 25, 2026 by Rory Hansen. How we research