Document ID: chunk:federal_register_of_legislation:F2023C00228:front:0:p116
Version: federal_register_of_legislation:F2023C00228
Segment Type: other
Provision Reference: 
Character Range: 313372–316295

and 101,250 candelas, approved in Germany (E1) in accordance with the requirements of Regulation No. 20 as amended by the 02 series of amendments, which is reciprocally incorporated with a front position lamp approved in accordance with the 01 series of amendments to Regulation No. 7;

       or: a headlamp with a passing beam designed for right-hand and left-hand traffic and a driving beam, approved in Germany (E1) in accordance with the requirements of Regulation No. 1 as amended by the 01 series of amendments, which is reciprocally incorporated with the same front position lamp as above;

       or even: either of the above-mentioned headlamps approved as a single lamp.

       The main body of the headlamp shall bear the only valid approval number, for instance:

       Figure 11 (continued)

       Example 2

       The above example corresponds to the marking of a lens of plastic material used in an assembly of two headlamps approved in France (E2), consisting of a headlamp emitting  a passing beam designed for both traffic systems and of a driving beam with a maximum intensity comprised between x and y candelas, meeting the requirements of Regulation No. 20, and of a headlamp emitting a driving beam with a maximum intensity comprised between w and z candelas, meeting the requirements of Regulation No. 8 or Regulation No  20, the maximum intensity of all the driving beams being comprised between 86,250 and 101,250 candelas.

       Annex 3

       MEASURING SCREEN

       A.  Headlamp for right-hand traffic (Dimensions in mm)

       B.  Headlamp for left-hand traffic (Dimensions in mm)

       Figure C

       Note:

       Figure C shows the measuring points for right-hand traffic.

Points 7 and 8 move to their corresponding location at the right-hand side of the picture for left-hand traffic.

       Annex 4

       TESTS FOR STABILITY OF PHOTOMETRIC PERFORMANCE OF HEADLAMPS IN OPERATION

       TESTS ON COMPLETE HEADLAMPS

       Once the photometric values have been measured according to the prescriptions of this Regulation, in the point for Emax for driving beam and in points HV, 50 R, B 50 L for passing beam (or HV, 50 L, B 50 R for headlamps designed for left-hand traffic) a complete headlamp sample shall be tested for stability of photometric performance in operation. "Complete headlamp" shall be understood to mean the complete lamp itself including those surrounding body parts and lamps which could influence its thermal dissipation.

       1. TEST FOR STABILITY OF PHOTOMETRIC PERFORMANCE

       The tests shall be carried out in a dry and still atmosphere at an ambient temperature of 23 degrees C +/- 5 degrees C, the complete headlamp being mounted on a base representing the correct installation on the vehicle.

       1.1. Clean headlamp

       The headlamp shall be operated for 12 hours as described in subparagraph 1.1.1. and checked as prescribed in