Document ID: chunk:federal_register_of_legislation:F2023C00165:reg:12v:p2
Version: federal_register_of_legislation:F2023C00165
Segment Type: reg
Provision Reference: reg 12V (pt 2/3)
Character Range: 212076–214996

as shown in the figure on sheet H10/1. 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.

    * 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.
CATEGORY H10

Sheet H10/3
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 filament lamp complies with the requirements.

      a1     a2     b1    b2   c1   c2
12 V  1.4 d  1.8 d  0.25  6.1  4.9

d = diameter of filament
The filament position is checked solely in directions A and B as shown on sheet H10/1.
The ends of the filament as defined on sheet H10/2, note 10/ shall lie between lines Z1 and Z2 and between
Annex 2
COMMUNICATION

(Maximum format: A4 (210 x 297 mm))

Issued by: Name of administration:

[1]

Concerning: [2]APPROVAL GRANTED
    APPROVAL EXTENDED
    APPROVAL REFUSED
    APPROVAL WITHDRAWN
    PRODUCTION DEFINITELY DISCONTINUED

of a type of filament lamp pursuant to Regulation No. 37 Approval No.  Extension No.

     1. Trade name or mark of the device:
     2. Manufacturer's name for the type of device:
     3. Manufacturer's name and address:
     4. If applicable, name and address of manufacturer's representative:
     5. Submitted for approval on:
     6. Technical service responsible for conducting approval tests:
     7. Date of report issued by that service:
     8. Number of report issued by that service:
     9. Concise description:
Category of filament lamp:
Rated voltage:
Colour of light emitted: White/selective yellow/amber2
10.  Position of the approval mark:
11.  Reason(s) for extension (if applicable):
12.  Approval granted/refused/extended/withdrawn:2
13.  Place:
14.  Date:
15.  Signature:
The following documents, bearing the approval number shown above, are available on request:
Annex 3

EXAMPLE OF THE ARRANGEMENT OF THE APPROVAL MARK

(See paragraph 2.4.3.)

The above approval mark affixed to a filament lamp indicates that the filament lamp has been approved in the United Kingdom (E11) under approval code A1. The first character of the approval code indicates that the approval was granted in accordance with the requirements of Regulation No. 37 as amended by the 02 and 03 */ series of amendments.

*/ Not requiring changes in the approval number.
Annex 4

LUMINOUS CENTRE AND SHAPES OF LAMP FILAMENTS

 Save as possibly otherwise indicated on the lamp data sheets, this standard is applicable to the determination of the luminous centre of different filament shapes.
 The position of the luminous centre depends upon the filament shape.

No.  Filament shapes  Observations