What should you do?
Check headroom if driving a tall vehicle or load and never raise equipment near the cables.
How to recognise it
Orange diamond with a black lightning bolt and an insulator above it.
Common confusion
It matches the yellow permanent version, but the orange colour links it to temporary cables or works.
Explanation written by the My Driving Test editorial team using the Department of Transport Traffic Signs Manual conventions and the RSA Rules of the Road.
