17-414

exposure distance

distance of (human) exposure from a lamp or lamp system

Unit: m

NOTE For lamp safety evaluations, this is the nearest distance consistent with the application of the lamp or lamp system. For lamps radiating in all directions the distance is measured from the centre of the filament or arc source. For reflector-type lamps the distance is measured from the outside edge of the lens or the plane defining the end of the reflector in a lens free reflector.

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