Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p7
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 7/15)
Character Range: 642044–645396

more than one cut-off line shall be visible.[43]/

       4.1.2. Sharpness of cut-off:  if scanned vertically through the horizontal part of the cut-off line along the ± 2.5 -lines, the maximum value measured for:

       G = (log EV - log E(V + 0.1°) )

       is called the sharpness factor G of the cut-off line. The value of G shall not be less than 0.13 for class B and 0.08 for classes A, C and D.

       4.1.3. Linearity:  the part of the cut-off line which serves for vertical adjustment shall be horizontal from 3°L to 3°R of the V-V-line.  This requirement is deemed to be met if the vertical positions of the inflection points according to paragraph 3.2. above at 3° left and right of the V-V-line do not differ by more than 0.2° for class B and 0.3° for class A, C and D head lamps from the nominal position at the V-V-line.

       5. Instrumental vertical adjustment:  if the cut-off line complies with the above quality requirements, the vertical beam adjustment can be performed instrumentally.  For this purpose the inflection point where d2 (log E ) / dv2  = 0  is positioned on the     V-V-line in its nominal position below the H-H-line.  The movement for measuring and adjusting the cut-off line shall be upwards from below the nominal position.

Compilation NOTES
This compilation of Vehicle Standard (Australian Design Rule 46/00 - Headlamps) 2006 includes all the instruments set out in the Table of Instruments.  This vehicle standard is determined under section 12 of the Road Vehicle Standards Act 2018.

The Table of Amendments provides a history of clauses that have been amended, inserted or deleted.

Table of Instruments

Name of Instrument                                                                                           Registration Date  Commencement Date
Vehicle Standard (Australian Design Rules 46/00 – Headlamps) 2006                                            21/07/2006         22/07/2006
Vehicle Standard (Australian Design Rules 46/00 – Headlamps) 2006 Amendment 1 (F2007L02250)                  23/07/2007         24/07/2007
Vehicle Standard (Australian Design Rules 46/00 – Headlamps) 2006 Amendment 2 (F2007L02251)                  23/07/2007         24/07/2007
Vehicle Standard (Australian Design Rule) Lighting Standards Amendment Instrument 2022 (No.1) (F2023L00042)  19/01/2023         20/01/2023

Table of Amendments

Clause affected   How affected  Amending instrument
0.2.              del           Legislation Act 2003 – section 48D
0.3.              del           Legislation Act 2003 – section 48C
3.1               am            Vehicle Standard (Australian Design Rules 46/00 – Headlamps) 2006 Amendment 1
4.1               am            Vehicle Standard (Australian Design Rules 46/00 – Headlamps) 2006 Amendment 1
4.1.              am            Vehicle Standard (Australian Design Rule) Lighting Standards Amendment Instrument 2022 (No.1)
4.2               ad            Vehicle Standard (Australian Design Rules 46/00 – Headlamps) 2006 Amendment 2
4.2.              del           Vehicle Standard (Australian Design Rule) Lighting Standards Amendment Instrument 2022 (No.1)
5.1               am            Vehicle Standard (Australian Design Rules 46/00 – Headlamps) 2006 Amendment 1
5.6               ad            Vehicle Standard (Australian Design Rules 46/00 – Headlamps)