What is BS EN 12665?
BS EN 12665 is a European standard which defines basic terms and definitions for use in all lighting applications.
It also sets out a framework for the specification of lighting requirements, giving details of aspects which have to be considered when setting those requirements.
The significant change between EN 12665:2002 and EN 12665:2011 is within the scope of the document. EN 12665:2002 defined basic terms for use in lighting applications, and specialist terms with limited applications were defined in individual standards. In practice this resulted in cases of similar terminology being used to define different concepts, and conversely different terms being used to describe similar concepts.
Therefore EN 12665:2011 defines basic terms and definitions for use in all lighting applications. Furthermore some references have been updated