Document ID: chunk:federal_register_of_legislation:F2023C00165:reg:6v:p6
Version: federal_register_of_legislation:F2023C00165
Segment Type: reg
Provision Reference: reg 6V (pt 6/19)
Character Range: 131968–135068

with IEC 61 (sheet 7004-31-2) 13/

ELECTRICAL AND PHOTOMETRIC CHARACTERISTICS
 Rated values                                                 V                              12              12

   W                                                                 60                              60
 Test voltage                                                 V                             13.2            13.2
 Objective values
                                                              W                    73 max.               73 max.

 Luminous flux 1m +/-                                               1,860
   %
          12
Reference luminous flux for headlamp testing:
1,300 1m at approx. 12V

    8/ The eccentricity is measured only in viewing directions */ A and B as shown in the figure on sheet HB3/1. The points to be measured are those where the projection of the outside of the end turns nearest to or furthest from the reference plane crosses the filament axis.
9/ The viewing direction is direction */ B as shown in the figure on sheet HB3/1.
10/ To be checked by means of a "box-system". Sheet HB3/4. */
    11/ The ends of the filament are defined as the points where, when the viewing direction */ as defined in note above, the projection of the outside of the end turns crosses the filament axis.
12/ Dimensions shall be checked with O-ring removed.
    13/ Filament lamp HB3 shall be equipped with the right-angle cap and filament lamp HB3A with the straight cap.

    */ Manufacturers may choose another set of perpendicular viewing directions. The viewing directions specified by the manufacturer are to be used by the testing laboratory when checking filament dimensions and position.

CATEGORIES HB3 AND HB3A

Sheet HB3/4

Screen projection requirements
 This test is used to determine, by checking whether the filament is correctly positioned relative to the reference axis and the reference plane, whether a lamp complies with the requirements.

      p      q      r    s    t    u    v
12 V  1.3 d  1.6 d  3.0  2.9  0.9  0.4  0.7

d = diameter of filament
The filament position is checked solely in directions A and B as shown on sheet HB3/1.
The beginning of the filament as defined on sheet HB3/3, note 11/ shall be in volume "B" and the end of the filament in volume "C".
The filament shall lie entirely within the limits shown. Volume "A" does not involve any filament centre requirement.
CATEGORIES HB4 AND HB4A

Sheet HB4/1
 The drawings are only to illustrate the essential dimensions of the filament lamp

1/ The reference plane is the plane defined by the meeting points of the cap-holder fit.
    2/ The reference axis is perpendicular to the reference plane and concentric with the reference diameter of the cap.
    3/ Glass bulb and supports shall not exceed the envelope and shall not interfere with insertion past the lamp key. The envelope is concentric to the reference axis.
4/ The keyway is mandatory.
    5/ The filament lamp shall be rotated in the measuring holder until the reference lug contacts plane C of the holder.
CATEGORIES