Document ID: chunk:federal_register_of_legislation:F2023C00161:front:0:p5
Version: federal_register_of_legislation:F2023C00161
Segment Type: other
Provision Reference: 
Character Range: 12976–16012

and ballast.

       3.1.5. "Test voltage":  Voltage at the input terminals of the ballast for which the electrical and photometry characteristics of the gas-discharge light source are intended and are to be tested.

       3.1.6. "Objective value":  Design value of an electrical or photometry characteristic.  To be achieved, within the specified tolerances, when the gas-discharge light source is energized by the ballast operated at the test voltage.

       3.1.7. "Standard (etalon) gas-discharge light source":  Special gas-discharge light source used for the testing of headlamps.  It has reduced dimensional, electrical and photometric characteristics as specified on the relevant data sheet.

       3.1.8. "Reference axis":  An axis defined with reference to the cap and to which certain dimensions of the gas-discharge light source are referred.

       3.1.9. "Reference plane":  A plane defined with reference to the cap and to which certain dimensions of the gas-discharge light source are referred.

       3.2. General specifications

       3.2.1. Each sample submitted shall conform to the relevant specifications of this Regulation when tested with the ballast according to paragraph 2.2.2.4.

       3.2.2. Gas-discharge light sources shall be so designed as to be and to remain in good working order when in normal use.    They shall moreover exhibit no fault in design or manufacture.

       3.3. Manufacture

       3.3.1. The bulb of the gas-discharge light source shall exhibit no marks or spots which might impair their efficiency and their optical performance.

       3.3.2. In the case of a coloured (outer) bulb, after an operating period of 15 hours with the ballast at test voltage, the surface of the bulb shall be lightly wiped with a cotton cloth soaked in a mixture of 70 volume % of n-heptane and 30 volume % of toluol.  After five minutes, the surface shall be inspected visually.  It shall not show any apparent changes.

       3.3.3. Gas-discharge light sources shall be equipped with standard caps, complying with the cap data sheets of IEC Publication 61, third edition, as specified on the individual data sheets of annex 1.

       3.3.4. The cap shall be strong and firmly secured to the bulb.

       3.3.5. To ascertain whether gas-discharge light sources conform to the requirements of paragraphs 3.3.3.  to 3.3.4., a visual inspection, a dimension check and, where appropriate, a trial fitting shall be carried out.

       3.4. Tests

       3.4.1. Gas-discharge light sources shall be aged as indicated in annex 4.

       3.4.2. All samples shall be tested with the ballast, according to paragraph 2.2.2.4.

       3.4.3. Electrical measurements shall be carried out with instruments of at least class 0.2. (0.2% full scale accuracy).

       3.5. Position and dimensions of electrodes, arc and stripes

       3.5.1. The geometric position of the electrodes shall be as specified on the relevant data sheet. An example of a method of measuring arc and electrodes position is given