30.01.2013 Views

Training course on energy efficiency in SMEs - engine-sme.eu

Training course on energy efficiency in SMEs - engine-sme.eu

Training course on energy efficiency in SMEs - engine-sme.eu

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Step 1 – Identify lamps and bulbs<br />

It is first of all necessary to go through the room and to<br />

identify all lamps <strong>in</strong> use. Count the number of lamps and<br />

multiply each lamp by its power rat<strong>in</strong>g. For fluorescent<br />

lamps do not forget to add ballasts. Where ballasts are not<br />

known it is a rule of thumb to take it to be 12% of the<br />

power rat<strong>in</strong>g of each lamp.<br />

This calculati<strong>on</strong> gives a total power rat<strong>in</strong>g for the light<strong>in</strong>g<br />

system. Take care to always calculate with the same unit<br />

kW (1000W = 1 kW).<br />

E.g. 71 C<strong>on</strong>venti<strong>on</strong>al lamps at 150W = 10650 W / 1000 =<br />

10.65 kW<br />

www.eng<strong>in</strong>e-<strong>sme</strong>.<strong>eu</strong>

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!