Betekenis van:
light ballast

Voorbeeldzinnen

1. Information on the efficiency of the ballast or the applicable type of light source control gear.
2. ‘Ballast’ means an electronic light source control gear between supply and light source to stabilise the electrical current of a gas-discharge light source;
3. Ballasts for dimmable high intensity discharge lamps which can be dimmed down to 40 % light output having ballast efficiency of 0,9 (best known result, actual dimming possibilities may depend on the HID lamp type used with the ballast).
4. Basically, the electronic ballast supplies electrons into the gas discharge tube. The electrons activate the gas that emits energy in the form of light.
5. The power consumption of ballasts used with fluorescent lamps without integrated ballast shall not exceed 0,5 W when operated lamps do not emit any light in normal operating conditions.
6. ‘luminaire’ means an apparatus which distributes, filters or transforms the light transmitted from one or more light sources and which includes all the parts necessary for supporting, fixing and protecting the light sources and, where necessary, circuit auxiliaries together with the means for connecting them to the supply, but not the light sources themselves; 7. ‘fluorescent lamps’ means discharge lamps of the low pressure mercury type in which most of the light is emitted by one or several layers of phosphors excited by the ultraviolet radiation from the discharge; 8. ‘fluorescent lamps without integrated ballast’ means single and double capped fluorescent lamps without integrated ballast; 9. ‘high intensity discharge lamps’ means electric discharge lamps in which the light producing arc is stabilised by wall temperature and the arc has a bulb wall loading in excess of 3 watts per square centimetre.
7. the power consumption of luminaires for fluorescent lamps without integrated ballast shall not exceed the sum of the power consumption of the incorporated ballasts when the lamps they are normally operating do not emit any light when other possible connected components (network connections, sensors etc.) are disconnected.
8. The power consumption of ballasts used with fluorescent lamps without integrated ballast shall not exceed 0,5 W when operated lamps do not emit any light in normal operating conditions. This requirement shall apply to ballasts when other possible connected components (network connections, sensors etc.) are disconnected.