Final Report Lot 9: Public street lighting - Amper

For the general remarks with this input table is referred to the discussion of the HPS 70W lamp.
Over 97wt% of the materials are modelled, which is acceptable and indicates that the
environmental impact of the production phase is not largely underestimated
The HPS 250W lamp has a mercury content of 0.015g (and 0.005g Na). The BOMs for the
different HPS lamps show a fixed mercury-content for all lamps, independent of their power.
This is due to the fact that for HPS-lamps mercury serves only as a carrier.
The table below gives the other inputs that refer to the production (manufacturing processes) of
the lamp. We assume no specific differences in the production parameters among the different
lamp types. Following the VHK case study we assume that for the production of 1 kg sheet
metal for lamps, 1.25 kg sheet metal is needed as input material (25% sheet metal scrap).
Table 42: Input data for the manufacturing of the HPS 250W lamp
MANUFACTURING Weight Percentage
Description in g Adjust
OEM Plastics Manufacturing (fixed) 0
Foundries Fe/Cu/Zn (fixed) 26
Foundries Al/Mg (fixed) 1
Sheet metal Manufacturing (fixed) 18
PWB Manufacturing (fixed) 4
Other materials (Manufacturing already included) 599,80
Sheet metal Scrap (Please adjust percentage only) 5 25%
4.1.3.3 Typical low pressure sodium lamps (LPS)
► LPS 131W lamp
The input data for the low pressure sodium lamp are specific data for one type of lamp. No
general data were available. Table 43 summarizes the input data that are taken into account for
the environmental assessment.
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