BSI - BS 559
Electric Signs and High-Voltage Luminous-Discharge-Tube Installations
|Publication Date:||28 February 1991|
|ICS Code (Fluorescent lamps. Discharge lamps):||29.140.30|
|ICS Code (Other graphical symbols):||01.080.99|
Electrically illuminated signs operating at high or low voltage and high-voltage installations up to and including 5 kV to earth either for external or internal use. It does not include luminaires or exit signs operating at low voltage.