Вуличне освітлення. Частина 5. Показники енергетичної ефективності

C.3 Typical values of qmst

Experience shows that good results for energy consumptions and environmental compatibility can be obtained with q_inst >1 with a careful design.

Annex D

(informative]

Presentation of energy performance indicators

The two energy performance indicators - power density indicator (PDI) and annual energy consumption indicator (AECI) are compound parameters, thus they should be always presented together. All values and assumptions taken for the calculation of energy performance indicators should also be displayed clearly with the indicators. Table D.l gives an example. In some cases graphical interpretation of the operational profile can be a suitable way of presentation.

Table D.l — Example of information to be presented together with energy performance
indicators

NOTE The table can be extended by additional luminaires, sub-areas or time periods if needed.

Bibliography

1. CEN/TR 13201-1, Road lighting — Part 1: Guidelines on selection of lighting classes

2. EN 13201-4, Road lighting — Part 4: Methods of measuring lighting performance

3. CIE S 017/E: 2011, ILV, International Lighting Vocabulary

4. CIE 115:2010, Lighting of Roads for Motor and Pedestrian Traffic

5. CIE 144:2001, Road Surface and Road Marking Reflection Characteristics

6. CIE 154:2003, The Maintenance of Outdoor Lighting Systems