Document ID: chunk:federal_register_of_legislation:F2023C00144:reg:6:p2
Version: federal_register_of_legislation:F2023C00144
Segment Type: reg
Provision Reference: reg 6 (pt 2/17)
Character Range: 22274–25524

the light emitted outside the zone defined by the measuring points +/- 10 degrees H and +/- 10 degrees V (10 degrees -field) must not exceed the following values:

Direction indicator of category  Maximum values in cd outside the 1.0 degrees - field
Single Lamp                      Lamp (single) marked "D" (see paragraph 4.2.2.3.)     Total for the assembly of two lamps (see paragraph 4.2.2.3.)
2b by night                      100                                                   70                                                            140
1, 3 and 4                       400                                                   280                                                           560

       Between the boundaries of the 10 degrees -field (+/- 10 degrees H and +/- 10 degrees V) and the 5 degrees -field (+/- 5 degrees H and +/- 5 degrees V), the maximum admissible values of the intensities are linearly increased up to the values as defined in paragraph 6.1.;

       6.2.3.3. For devices of category 1a and 1 b, the intensity of the light emitted outside the zone defined by the measuring points +/- 15 degrees H and +/- 15 degrees V (15 degrees - field) shall not exceed the following values:

Direction indicator of category  Maximum values in cd outside the 15 degrees - field
Single Lamp                      Lamp (single) marked "D" (see paragraph 4.2.2.3.)    Total for the assembly of two lamps (see paragraph 4.2.2.3.)
1a                               250                                                  175                                                           350
1b                               400                                                  280                                                           560

       Between the boundaries of the 15 degrees -field (+/- 15 degrees H and +/- 15 degrees V) and the 5 degrees -field (+/- 5 degrees H and +/- 5 degrees V), the maximum values are increased linearly up to the values as defined in paragraph 6.1.

       6.2.3.4. The provisions of paragraph 2.2. of Annex 4 to this Regulation on local variations of intensity must be observed.

       6.3. The intensities shall be measured with the filament lamp(s) continuously alight.

       6.4. In the case of devices of category 2b the time that elapses between electrical supply being switched on and the light output measured on the reference axis to reach 90% of the value measured in accordance with paragraph 6.3. above shall be measured for both the day and the night conditions of use. The time measured for the night condition of use shall not exceed that measured for the day condition of use.

       6.5. Annex 4, referred to in paragraph 6.2.1. above, gives particulars of the measurement methods to be used.

       7. TEST PROCEDURE

       7.1. All measurements shall be made with an uncoloured or amber-coloured standard filament lamp of the category prescribed for the device, the supply voltage being so regulated as to produce the reference luminous flux prescribed for that category of lamp.

       7.1.1. All measurements on lamps equipped with non-replaceable light sources (filament lamps and other) shall be made at 6.75 V, 13.5 V or 28.0 V respectively.

       In the case