Indoor Furnishings User Manual

2000-11-07
4
1.3 Nomenclature
The name of the lamp family is:
‘TL’ fluorescent lamps
The technical name of the product is:
‘TL’5
5: tube diameter of 5/8 inch
Example:
‘TL’5 HE 14W /827: ‘TL’5 tubular double-ended lamp
High Efficiency range
14Watt /827:R
a
>80,T
c
of 2700 K
‘TL’5 HO 54W /840: ‘TL’5 tubular double-ended lamp
High Output range
54Watt /840:R
a
>80,T
c
of 4000 K
For the ILCOS code of ‘TL’5 lamps see Annex 1.
1.4 Environmental aspects
Life Cycle Assessment (LCA) studies show that at least 99% of
light sources’ contribution to pollution is caused by their energy
consumption.This means the higher the efficacy,the better from
the environmental (and economical) point of view.Less energy
consumption means less energy generation, which will have a
positive effect on the environment:reduced fuel consumption
results in a reduction of power plant emissions.
‘TL’5 HE fluorescent lamps perform up to 104 lm/W. Due to the
low lamp power and the low ballast losses (High Frequency
operation) the energy consumption is about 25% less than a ‘TL’D
system with conventional operation in comparable installations and
still fulfilling the required level.
The /80 New Generation phosphor technology which is used with
‘TL’5 lamps is a true breakthrough in product development and
manufacturing techniques,minimizing the mercury absorption that
is the major cause of lumen depreciation.
Advanced coating technologies apply a single-layer tri-phosphor
coating instead of the formerly used double-layer halophosphor
and tri-phosphors.Furthermore, new precoating procedures
dramatically reduce mercury absorption in the single-layer
tri-phosphor and glass.As a result,down to a minimum of mercury
is required inside the lamp,just as with ‘TL’D New Generation
lamps.
So in respect to environmental effects ‘TL’5 is another step
forward.