Common use of Luminous intensity Clause in Contracts

Luminous intensity. 4.7.1.1. Filament lamps and gas discharge light sources are exempted from this test. 4.7.1.2. A photometric measurement shall be made after 1 minute of operation with the device at room temperature. The test point to be measured is horizontal 0° vertical 2.5°D. 4.7.1.3. The lamp shall continue operation until photometric stability has occurred. The moment at which the photometry is stable is defined as the point in time at which the variation of the photometric value is less than 3 per cent within any 15-minute period. After stability has occurred, aiming for complete photometry shall be performed in accordance with requirements of the specific device. Photometry at all test points is required for the specific device. 4.7.1.4. Calculate the ratio between the photometric test point values determined in paragraph 4.7.1.2. and the values determined in paragraph 4.7.1.3. above once stability of photometry has been achieved. 4.7.1.5. Apply the ratio calculated in paragraph 4.7.1.4. above to each of the remainder of the test points to create a new photometric table that describes the complete photometry based on 1 minute of operation. 4.7.1.6. The illuminance values measured after one minute and until photometric stability has occurred, shall comply with the minimum and maximum requirements.

Luminous intensity. 4.7.1.1. Filament lamps and gas discharge light sources are exempted from this test. 4.7.1.2. A photometric measurement shall be made after 1 minute of operation with the device at room temperature. The test point to be measured is horizontal 0° vertical 2.5°D. 4.7.1.3. The lamp shall continue operation until photometric stability has occurred. The moment at which the photometry is stable is defined as the point in time at which the variation of the photometric value is less than 3 per cent within any 15-minute period. After stability has occurred, aiming for complete photometry shall be performed in accordance with requirements of the specific device. Photometry at all test points is required for the specific device. 4.7.1.4. Calculate the ratio between the photometric test point values determined in paragraph 4.7.1.2. and the values determined in paragraph 4.7.1.3. above once stability of photometry has been achieved. 4.7.1.5. Apply the ratio calculated in paragraph 4.7.1.4. above to each of the remainder of the test points to create a new photometric table that describes the complete photometry based on 1 minute of operation. 4.7.1.6. The illuminance values measured after one minute and until photometric stability has occurred, shall comply with the minimum and maximum requirements.