IEC 60399:2008 pdf free download

IEC 60399:2008 pdf free download

IEC 60399:2008 pdf free download Barrel thread for lampholders with shade holder ring
1 General
1.1 Scope
This international standard applies to lampholders designed with a barrel thread for shade older rings designed to keep attachments to lampholders in place.
It also covers barrel threads for shade holder rings.
Attention is drawn to lampholder safety standards IEC 60238, IEC 60400, IEC 60838-1 and IEC 61 1 84 which cover all aspects of lampholder safety and to the luminaire standard
IEC 60598-1 which contains information for luminaire design.
1.2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60238, Edison screw lampholders
IEC 60400, Lampholders for tubular flurorescent lamps and starterholders
IEC 60598-1 , Luminaires – Part 1: General requirements and tests
IEC 60838-1 , Miscellaneous lampholders – Part 1: General requirements and tests
IEC 61 1 84, Bayonet lampholders
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
barrel thread
external thread on the outer shell of a lampholder intended to support a shade ring
shade ring
cylindrical component having an internal thread to engage a corresponding support on the outer shell of a lampholder and intended to carry or retain a shade.
3 Requirements to barrel threads
3.1 General requirements
For B1 5 and B22 lampholders, barrel threads other than those shown in this standard may be used, providing they comply with Figure 8 of IEC 61 1 84.
Pour les autres douilles, les filetages à filet rond autres que ceux illustrés dans cette norme peuvent être utilisés lorsque la douille peut seulement être installée par le fabricant du luminaire ou de l’équipement. Dans tous les autres cas, les filetages à filets ronds spécifiés dans cette norme sont obligatoires.