BS EN 60669-2-6. Switches for household and similar fixed electrical installations. Part 2-6. Fireman's switches for exterior and interior signs and luminaires
Signs and luminous-discharge-tube installations operating from a no-load rated output voltage exceeding 1 kV but not exceeding 10 kV-General requirements
Signs and luminous-discharge-tube installations operating from a no-load rated output voltage exceeding 1 kV but not exceeding 10 kV-Requirements for earth-leakage and open-circuit protective devices