International Electrotechnical Commission

EN cap
base, en US  
part of a lamp which provides connection to the electrical supply by means of a lampholder or lamp connector and, in most cases, also serves to retain the lamp in the lampholder

Note 1 to entry:·The term "base" is also used in both the United Kingdom and the United States of America to denote an integral part of a lamp envelope which has been so shaped that it fulfils the function of a cap. It may engage either a holder or a connector, depending on other design features of the lamp- and holder system.

Note 2 to entry:·The cap of a lamp and its corresponding holder are generally identified by one or more letters followed by a number which indicates approximately the principal dimension (generally the diameter) of the cap in millimetres. The standard code is to be found in IEC 60061.

TC/SC:82Terms     Info     Publications
Published in:IEC 62257-12-1, ed. 2.0 (2015-10) Terms     Info
Reference number:3.25

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