Document ID: chunk:federal_register_of_legislation:F2023C00165:reg:6v:p1
Version: federal_register_of_legislation:F2023C00165
Segment Type: reg
Provision Reference: reg 6V (pt 1/3)
Character Range: 43752–47809

6V                                                                     12V                     24V
e                                                                      12.25                   5/         +/- 0.15
6/                                                                     6V                      4.5
f                                                                      12V                     5.5        +/- 1.0     +/- 0.50
6/                                                                     24V
g 1/ 2/                                                                0.5 d                   +/- 0.5 d  +/- 0.25 d
h1 2/                                                                  7.1                     5/         +/- 0.20
h2 4/                                                                                          5/         +/- 0.25
h3 1/ 2/                                                               0.5 d                   5/         +/- 0.20
h4 1/ 4/                                                                                       5/         +/- 0.25
Cap X 511 in accordance with IEC Publication 61 (sheet 7004-99-2)
ELECTRICAL AND PHOTOMETRIC CHARACTERISTICS
Rated                                                                  V                       6          12          24        12
values                                                                 W                       55         70          55
Test voltage                                                           V                       6.3        13.2        28.0
                                                                       W                       max.       max.        max.      max.
                                                                                               63         68          84        68 at 13.2V
Objective values                                                       Luminous flux lm        1,300      1,800       2,150
                                                                       +/- %                   15
Reference luminous flux for headlamp testing: 1,300lm at approx. 12V.

CATEGORY H2
Sheet H2/3
1/ d: diameter of filament.
2/ These offsets should be measured in a cross-section perpendicular to the axis of the bulb and passing through that end of the filament */which is nearer to the cap.
3/ The three crosses on the supporting plane show the positions of the three bosses defining this plane on the holder. Within a circle 3mm in diameter centred on these points there should be no apparent deformation and no notches affecting the positioning of the filament lamp.
4/ These offsets should be measured in a cross-section perpendicular to the axis of the bulb and passing through that end of the filament */ which is further from the cap.
5/  To be checked by means of a "box system", sheet H2/4.

    6/ The ends of the filament are defined as the points where, when the viewing direction is as defined by "D" (sheet H2/1), the projection of, the outside of the end turns nearest to or furthest from the cap crosses a line parallel to and at a distance of 7.1mm from line ZZ (special instructions for coiled-coil filaments are under consideration).

*/The points to be measured are those where the outside of the end turn that is nearest to or furthest from the cap crosses the filament axis.

CATEGORY H2

Sheet H2/4

Screen projection requirements
This test is used to determine, by checking whether a filament is correctly positioned relatively to the axes x-x, y-y and z-z */, whether a filament lamp complies with the requirements.

        6V          12V        24V
a1      d + 0.50  d + 1.0

a2                d + 1.0
b1, b2              0.25
d1                  7.1
d2                0.5d - 0.35
h       6         7

d = diameter of filament
The end of the filament **/ which is nearer to the cap must lie between b1 and b2. The filament must lie entirely within the limits shown.
*/ See sheet H2/1.
**/ The end of the filament is defined at sheet H2/3.
Dimensions in