Philips Indoor Luminaires Indoor Furnishings User Manual


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Philips indoor luminaires12.6
Specication data luminaires
Gear types
Fluorescent and high-intensity discharge lamps require a device to limit
the current due to the unfavorable current-voltage characteristics of
the lamps. Traditionally this has been achieved using electromagnetic
control gear in combination with either a glow-starter switch or
electronicstarter.AlmostthecompleterangeofPhilipsuorescent
and high-intensity discharge lamp/luminaires are available with the
electromagnetic type of ballast system. From the point of view of
energy consumption the electromagnetic control gear system is
inefcientbecausethelossesinthesystemarerelativelyhighand
signicantimprovementsarepossiblebyapplyingelectroniccontrol
gear instead.
Electronic control gear offers a number of advantages in comparison
withelectromagneticballasts:
- The electronic ballast offers interesting cost savings, such as
reduction in energy consumption of about 25%, extension of the
lamp life up to 50% and, moreover, lower maintenance costs.
- Application of electronic ballasts adds to the comfort in numerous
ways:nocathodeickeroccurs;attheendoflamplifethelampis
automatically switched off; smooth and rapid starting is ensured
withoutickering;andnostroboscopiceffectscanariseduetothe
high frequency at which the lamps are operated.
- Extra safety is assured through over-voltage detection, protected
control of the mains voltage input and a noticeably lower operating
temperature.
-Flexibilityisenhanced:installationswithuorescentlamps,for
instance, are dimmable if a regulating ballast is selected, allowing
for adjustment of lighting levels to personal preference and the
opportunity for additional savings on energy, e.g. by daylight-linked
lighting control.
Followingthetrendtowardsgreaterefciencyandcomfort,someof
theneweruorescentlampslikeallTL5andhigh-wattagePL-Ltypes
will operate only on electronic control gear.
Electronic transformers
Philips offers high frequency electronic transformers for operation
with 12 V halogen lamps up to and including 150 W. Electronic
transformers are compact, lightweight and are also dimmable.
They fully comply with the applicable safety and radiofrequency
interference standards. Over conventional gear they offer self-resetting
short-circuit protection, thermal-switch interruption for overload
protection, temperature protection by output voltage reduction and
inaudible operation. Electronic transformers produce a constant
output voltage, ensuring long lamp life and a constant light level.
CELMA classication
The Federation of National Manufacturers’ Associations for
LuminairesandElectrotechnicalComponentsforLuminairesinthe
EuropeanUnion,CELMA,hascreatedaguidefortheapplicationof
Directive2000/55/EConenergyefciencyrequirementsforballasts
foruorescentlighting.TheDirectiveaimstoreducetheenergy
consumptionofballastsforuorescentlightingbymovinggradually
awayfromthelessefcientballaststowardsmoreefcientones.
Thedegreeofenergyefciencyofuorescentlightingcircuitsdepends
uponthecombinationofballastandlamp.CELMAhasdevelopeda
ballastclassicationsystembasedontheballastlampsystem.
Thisclassicationsystemdenesballastclassesaslistedinthe
followingtable.Forfurtherdetailsrefertotheirwebsitehttp://www.
celma.org.
Ballast classication
Class Typical ballast type
A1 Dimmable electronic ballasts (best energy performance)
A2 Electronic ballasts with reduced losses
A3 Electronic ballasts
B1 Magnetic ballasts with very low losses
B2 Magnetic ballasts with low losses
C Magnetic ballasts with moderate losses
D Magnetic ballasts with very high losses (lowest energy performance)
Technical data
Indoor_2008_Chapter_12_LIS.indb 6 20-05-2008 14:32:53
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