Document ID: chunk:federal_register_of_legislation:F2023C00156:body:0:p10
Version: federal_register_of_legislation:F2023C00156
Segment Type: other
Provision Reference: 
Character Range: 25729–28642

(c) devices for illuminating a plate for agricultural or forestry tractors (240 x 165 mm)

a = 25 mm  b = 95 mm c = 100 mm d = 90 mm e =70 mm f = 57.5 mm g = 65 mm                            h = 60 mm

Note: In the case of devices for illuminating two or all of the plates, the measurement points used are obtained by combining the corresponding drawings above in accordance with the outline indicated by the make or manufacturer; however, if two measurement points are less than 30 mm apart, only one shall be used.

Annex 4

MINIMUM FIELD OF VISIBILITY OF THE SURFACE TO BE ILLUMINATED

       1. The field-of-visibility angles shown above relate only to the relative positions of the illuminating device and the space for the registration plate.

       2. The field of visibility of the registration plate when mounted on the vehicle remains subject to the relevant national regulations.

       3. The angles shown take account of the partial occultation caused by the illuminating device.  They must be adhered to in the directions in which there is most occultation. The illuminating devices must be such as to reduce the areas partly occulted to the minimum strictly necessary.

Annex 5

PHOTOMETRIC MEASUREMENT OF LAMPS EQUIPPED WITH SEVERAL LIGHT SOURCES

       1. The photometric performance shall be checked:

       1.1. For non-replaceable light sources (filament lamps and other):

       with the light sources present in the lamp, in accordance with paragraph 5.2.1. of this Regulation.

       1.2. For replaceable filament lamps:

       when equipped with mass production filament lamps at 6.75 V, 13.5 V or 28.0 V, the luminous intensity values produced shall lie between the maximum limit given in this Regulation  and  the  minimum  limit  of  this  Regulation  increased  according  to  the permissible deviation of the luminous flux permitted for the type of filament lamp chosen, as stated in Regulation No. 37 for production filament lamps; alternatively a standard filament lamp may be used in turn, in each of the individual positions, operated at its reference flux, the individual measurements in each position being added together.

Annex 6

MINIMUM REQUIREMENTS FOR CONFORMITY OF PRODUCTION CONTROL PROCEDURES

       1. GENERAL

       1.1. The conformity requirements shall be considered satisfied from a mechanical and geometric standpoint, if the differences do not exceed inevitable manufacturing deviations within the requirements of this Regulation.

       1.2. With respect to photometric performances, the conformity of mass-produced devices shall not be contested if, when testing photometric performances of any device chosen at random and equipped with a standard filament lamp, or when the lamps are equipped with non-replaceable light sources (filament lamps or other), and when all measurements are made at 6.75 V, 13.5 V or 28.0 V respectively:

       1.2.1. no