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A light symbol marked for operation on power failure.
Also known as: Emergency luminaire symbol, Escape lighting plan symbol
On a building services plan an emergency light is drawn as a lighting symbol with an added mark, denoting a luminaire that operates when the normal supply fails.
Denotes a luminaire that continues to operate when the normal electrical supply fails.
Contexts: Technical drawing
Is marked rather than given its own outline, because it is an ordinary lighting point with an additional property.
Contexts: Technical drawing
A lighting point circle with an added bar, hatch or letter distinguishing it from an ordinary luminaire.