Photometric measurement of lamps Sample Clauses

Photometric measurement of lamps. The photometric performance shall be checked: 3.1. For non-replaceable light sources (filament lamps and other): with the light sources present in the lamp, in accordance with paragraph 8.1. of this Regulation. 3.2. For replaceable filament lamps: when equipped with mass production filament lamps at 6.75 V, 13.5 V or 28.0 V, the luminous intensity values produced shall lie between the maximum limit given in this Regulation and the minimum limit of this Regulation increased according to the permissible deviation of the luminous flux permitted for the type of filament lamp chosen, as stated in Regulation No. 37 for production of filament lamps; alternatively, a standard filament lamp may be used in turn, in each of the individual positions, operated at its reference flux, the individual measurements in each position being added together. 3.3. For any signalling lamp except those equipped with filament lamp(s), the luminous intensities, measured after one minute and after 30 minutes of operation, shall comply with the minimum and maximum requirements. The luminous intensity distribution after one minute of operation can be calculated from the luminous intensity distribution after 30 minutes of operation by applying at each test point the ratio of luminous intensities measured at HV after one minute and after 30 minutes of operation. E/ECE/324 Rev.1/Add.76/Rev.1 Regulation No. 77 page 20 Annex 5 RED: limit towards yellow: y 0.335 limit towards purple: z 0.008 WHITE: limit towards blue: x 0.310 limit towards yellow: x 0.500 limit towards green: y 0.150 + 0.640 x limit towards green: y 0.440 limit towards purple: y 0.050 + 0.750 x limit towards red: y 0.382 AMBER: limit towards yellow: y 0.429 limit towards red: y 0.398 limit towards white: z 0.007 For checking those colorimetric characteristics, a source of light at a colour temperature of 2,854 K corresponding to illuminant A of the International Commission on Illumination (CIE) shall be used. However, for lamps equipped with non-replaceable light sources (filament lamps and other), the colorimetric characteristics should be verified with the light sources present in the lamp, in accordance with paragraph 8.1. of this Regulation. E/ECE/324 Rev.1/Add.76/Rev.1 Regulation No. 77 page 21 Annex 6
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Photometric measurement of lamps. The photometric performance shall be checked: 3.1. For non-replaceable light sources (filament lamps and other): with the light sources present in the lamp, in accordance with the relevant sub-paragraph of paragraph 7.1. of this Regulation. 3.2. For replaceable filament lamps: when equipped with filament lamps at 6.75 V, 13.5 V or 28.0 V, the luminous intensity values produced shall be corrected. The correction factor is the ratio between the reference luminous flux and the mean value of the luminous flux found at the voltage applied (6.75 V, 13.5 V or 28.0 V). The actual luminous fluxes of each filament lamp used shall not deviate more than
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Photometric measurement of lamps. For any lamp except those equipped with filament lamp(s) and if not otherwise specified in the individual Regulation, the luminous intensities measured after one minute and after 30 minutes of operation:
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Photometric measurement of lamps. The photometric performance shall be checked: 3.1. For non-replaceable light sources (filament lamps and other): with the light sources present in the lamp, in accordance with paragraph 7.1.1. of this Regulation. 3.2. For replaceable filament lamps: when equipped with mass production filament lamps at 6.75 V, 13.5 V or
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