Document ID: chunk:federal_register_of_legislation:F2023C00165:reg:15:p2
Version: federal_register_of_legislation:F2023C00165
Segment Type: reg
Provision Reference: reg 15 (pt 2/2)
Character Range: 79131–81767

to the right of the projection of the main (high-wattage) filament.

      3.                            Front elevation
      The lamp being placed with the cap down and the reference axis vertical, the lamp being viewed in a direction at right angles to the axis of the main (high-wattage) filament:

      3.1. the projection of the main (high-wattage) filament should lie entirely within a rectangle of height "a" and width "h" centred on the theoretical position of the centre of the filament;

      3.2. the centre of the main (high-wattage) filament should not be offset by more than the distance "k" from the reference axis;

      3.3. the centre of the auxiliary (low-wattage) filament shall not be offset from the reference axis by more than +/- 2mm (+/- 0.4mm for standard filament lamps).
CATEGORY P21/5W

                                             Sheet P21/5W/3 Dimensions in mm

Side elevation

Reference   a    b    c    d    u  v
Dimensions  3.5  3.0  4.8  2.8

Front elevation

Reference  a    h    k
Dimension  3.5  9.0  1.0

CATEGORY R5W
Sheet R5W/1

Dimensions in mm                                                     Filament lamps of   Standard
                                                                     normal production   filament
min.                                                                 nom.                max.        lamp
e                                                                    17.5                19.0        20.5         19.0 +/- 0.3

Lateral deviation 2/                                                                                 1.5          0.3 max.
Beta                                                                 60 degrees          90 degrees  120 degrees
                                                                                                                     90 degrees +/- 5 degrees

Cap BA 15s in accordance with IEC Publication 61 (sheet 7004-11A-8)
ELECTRICAL AND PHOTOMETRIC CHARACTERISTICS
Rated values                                                         V                   6           12           24                           12

W                                                                    3/                  5
                                                                     5
Test voltage                                                         V                   6.75        13.5         28.0
Objective
values                                                               W
                                                                     +/- %               5           7            5 at 13.5V