Document ID: chunk:federal_register_of_legislation:F2023C00142:front:0:p11
Version: federal_register_of_legislation:F2023C00142
Segment Type: other
Provision Reference: 
Character Range: 29277–31677

headlamp shall be so aimed that:

       6.2.2.1. in the case of headlamps designed to meet the requirements of right-hand traffic, the "cut-off" on the left-half of the screen [9/] is horizontal and, in the case of headlamps designed to meet the requirements of left-hand traffic, the "cut-off" on the right-half of the screen is horizontal;

       6.2.2.2. this horizontal part of the "cut-off" is situated on the screen 25 cm below the line HH (see annex 3).  The kink of the elbow of the cut-off shall be on the VV line.

       6.2.3. When so aimed, the headlamp needs, if its approval is sought solely for a passing beam, comply only with the requirements referred to in paragraphs 6.2.5. and 6.2.6. below; if it is intended to provide both a passing beam and a driving beam, it shall comply with the requirements set out in paragraphs 6.2.5. to 6.3.2.3. The values specified for Segment II in paragraph 6.2.6. do not apply to annex 3, Screen 2.

       6.2.4. Where a headlamp so aimed does not meet the requirements set out in paragraphs 6.2.6. and 6.3., its alignment may be changed, provided that the axis of the beam is not displaced laterally by more than 0.5 degrees (=22 cm) to the right or left and vertically not more than 0.2 degrees (=8.7 cm) up or down. [10/] To facilitate alignment by means of the "cut-off", the headlamp may be partially occulted in order to sharpen the "cut-off".

       6.2.5. Only one gas-discharge light source is permitted for each passing beam headlamp.

       6.2.5.1. The voltage applied to the terminals of the ballast(s) is: either:13.5 V +/- 0.1 for 12 V systems

       or: otherwise specified (See annex 7)

       6.2.6. After more than 10 minutes after ignition the illuminances produced on Screen 1 or 2 (or mirrored about the VV line for left-hand traffic) shall meet the following requirements:

       Note: In the table:

       Letter L means that the point or segment is located on the left of VV line.

       Letter R means that the point or segment is located on the right of VV line.

       Letter U means the point or segment is located above HH line.

       Letter D means the point or segment is located below HH line.

POINTS or SEGMENTS                                    Designation            Illuminances (lux) 1 max  HORIZONTAL Distances (cm)  VERTICAL Distances (cm)
On and above line H/H2, or On and above line H/H3/H4