IEC 61231-2013 pdf free download.International lamp coding system (ILCOS).
The complete lamp code ILCOS consists of a letter section and a figure section.
4.1 Letter section
The first letter of the letter section designates the lamp category as follows:
I Incandescent lamps — tungsten filament lamps
H Tungsten halogen lamps (non-vehicle)
F Fluorescent lamps
S High-pressure sodium vapour lamps
L Low-pressure sodium vapour lamps
Q High-pressure mercury vapour lamps
M Metal halide lamps
D LED modules and lamps
X Special lamps
NOTE Vehicle lamps, including their coding, are covered by national and/or regional legislation.
The next letters within the letter section give further details as outlined in the description of the
different lamp categories. The letter section is separated from the rest by a hyphen.
4.2 FIgure section
The figure section consists of several blocks mainly containing figures. Each block, separated by hyphens, contains characteristic values of lamps such as
— wattage:
— voltage:
— lamp cap:
— dimensional values.
As a hyphen is used to separate the blocks, it cannot be applied within a block. As a consequence. the sign of equality = is used instead of the hyphen. for example within the cap designation.
The sequence and the specific content of the blocks is determined for each lamp category and described in 5.1 to 5.89.
4.3 Length of the code
4.3.1 General
The code can be used in different lengths depending on the purpose. In catalogues and leaflets, specialities, for example special applications, can be indicated with an asterisk (*) in the place where the difference occurs or at the end of the code and explained in a separate remark, also indicated with an asterisk ().
The code can be shortened by deleting parts from the end, not by deleting intermediate parts. In general, if standard’ types are concerned, the dimension block can be omitted. Intermediate parts may be omitted, providing the separating signs such as hyphens (—) and slashes (I) are given.
NOTE These shortening rules do not apply to the extended short version ILCOS LE
4.3.2 Short version: ILCOS L
The short version consists of the tetter section or a part of it and is called ILCOS L. It can be used for the general classification of lamps. A survey of ILCOS L is given in Annex A.
4.3.3 Extended short version: ILCOS LE
The extended short version. where applicable, consists of the first part of the letter section (ILCOS L) immediately followed (without spaces) by the relevant dimensions.
4.3.4 Standard version: ILCOS 0
The standard version gives the complete designation and consists of the letter section and (a part of) the figure section. The use of ILCOS 0 should enable the customer to find the correct lamp type, for example in the case of lamp replacement from a different manufacturer. It can be used for the purpose of marking Iuminaires, when suitable also in an abbreviated form.
5 Lamp categories
For information about relevant lamp standards and lamp-related standards, see the lEG publications prepared by IEC technical committee 34.
5.1 Incandescent lamps — tungsten filament lamps
5.1.1 ILCOS L for Incandescent lamps — tungsten fIlament lamps
The ILCOS L code is built up as follows:
After the first two letters IA, IB and IN the shape of the bulb follows, indicated as specified in IEC 60887.IEC 61231 pdf download.