in compliance with:
Law of the Lombardy Region n.17 of the 27/03/00
(supp. n.13 to the BURL of the 30/03/00)

CieloBuio
National coordination for the Protection of the Nocturnal Sky
You open them 2000
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In order to facilitate the punctual application of the law norm, some notes and suggestions for the planning of the systems of public and private lighting system are of continuation collected. The progettuali indications refer exclusively to thematic the relative ones to the illuminotecnici criteria in order to obtain an effective discouragement of the luminous pollution and in order to favor the energetic saving, as far as therefore the ulterior progettuali aspects (electrical workers, it determine the proportions them, etc…) it is sent back to the relative dispositions of national and regional law.

• The systems realize to you must have one the maximum intensity in the advanced hemisphere (with g ³ 90°) of 0 candles for 1000 lumen
• The apparatuses will have to be equip you of the more efficient lamps available on the market. In the zones of respect of the Observatories Astronomical (it lists you to the Art. 10 of the Lombardic Law) the choice of the lamps to the sodio is preferibile to high or low pressure.
• In the lighting system of roads to traffic motorized the maintained medium luminance it does not have to exceed the recommended minimal level from the emergency norms. As reference in order to obtain systems to ‘regola of arte' is possible to use one whichever of the norms of a country of the European Community and in particular to Directives 83/189/cee (the 21 law of June 1986 n.317) and moreover to DPR 447/91 (regulations of law 46/90) to the art. 5, E' possible, as an example, to use Norm DIN 5044 rather than UNI 10439 (Appendix 2).
• To use like reference the norm that concurs the minimal level of luminance with parity of type of road allows to contain energetic expenses that the Common one will have to support for all the life of the system. For a reason or purpose of example we bring back, in tab.1 and 2 (Appendix the 2) values of luminance advises you from the Italian norm and that German (to make however reference to the tables originates them).
• The systems must be supplies of I affixed you dispositi to you in a position to reducing, within the hours ventiquattro, the emission of lights of the systems in not inferior measure to the thirty for hundreds regarding the full regimen of operativity. The reduction goes applied in case the conditions of use of the illuminated surface are such that the emergency does not come any compromised.
• In the calculation of the luminance to use the effectively present type of street paving. As an example, in the inert asphalt case with luminosity (R1) the same luminances that with a dark asphalt (R3 can be obtained) using inferior illuminamenti.
• To parity of luminance to the ground, to use the apparatus that allows to obtain the system from the minimal possible power, compatibly with point 1, so as to to diminish expenses of management and exercise (out of order, substitution lamps, pulizia optical, expenses for the electric power, etc.) that the Common one will have to face during the arc of the life of the system (to make the calculation for one average life of the system of 25 years). In any case to prefer apparatuses that, in the respect of point 1, they concur the greater possible interdistanza between the points light.
• The use factor must be greater of 0,5 (but particular dispositions).

5,2 EXTRAURBANI SYSTEMS (circonvallazioni, freeways, tangential etc):

• To use lamps to the sodio to low pressure,
• To use single tower-beacon if the installed power turns out inferior to the correspondent (as far as luminance on the street center) system with traditional apparatuses or if the use factor exceeds the value of 0,5 (to consider in the calculation of the use factor only the street surface).

• To use single tower-beacon if the installed power turns out inferior that is to the correspondent (, to luminance parity on the center street) system with traditional apparatuses or if the use factor exceeds the value of 0,5 (to consider in the calculation of the use factor only the surface to illuminate).
• In the case of systems it locates to you in zones not residential (es. industrial zones) to use lamps to the sodio to low pressure. In case the perception of the colors was necessary to integrate the light of the lamps to sodio to the low pressure with some to high pressure (mixed lighting system).
• The systems must be equip you of affixed systems to you for the extinction or the reduction of the flow in the hours in which the same system it is not used (es. parkings of centers trades them).

5,4 SYSTEMS SPORTSWOMEN:

• For this type of systems it is concurred I use of lamps to the ioduri metallic, even if remain to prefer those to the sodio in all the cases in which the perception of the color he is not fundamental.
• To preview various levels of lighting system in relation to I use of the system (training, television contest, resumptions).
• To use asymmetric floodlights mounts with glass of horizontal protection or others to you equivalents so as to to obtain 0 candles for 1000 lumen to g ³ 90° and containing the dispersion of light to outside of the field of gara/gioco (es. on the spalti).
• Moreover, in the case of lighting system of tracks from ski, to use apparatuses to edge track revolts towards goes them (that they respect however point 1 of the criteria generates them). This allows to nearly increase to the contrasts on the snowy mantle (thanks to the light shaving for the low height of sources), not dazzle the skiers (apparatuses revolts to goes them) and to contain to the maximum the installed power (to hold account of the high riflettività of the snowy mantle in the calculation of the luminances). In this type of systems he is fundamental to place the maximum attention in limiting the light dispersed to outside of the tracks and the same luminous intensity, seen the large one riflettività of the snow, to the aim also to safeguard the natural atmosphere surrounding.

5,5 Historical Centers And Ways Trade Them:

• To hold account of the lighting system produced also from the private ones by means of luminous standards, illuminated display windows etc, so as to to reduce lessened the installed power.
• In the case they are present trees, to place attention so that the luminous centers are posizionati in such way that the flow towards the superficial ones to illuminate is not intercepted meaningfully from the chioma of the same trees.
• If the architectonic requirements demand the use of so-called apparatuses from ‘arredo urbano' these they must however to satisfy requirement indicates you to point 1 of the common criteria to all the systems (0 candles for 1000 lumen to g ³ 90°).
• In the historical centers they are preferibili apparatuses posizionati under gronda.

5,6 Lighting system Of Buildings And Monuments:

• To use a shaving lighting system from high towards the bottom following the indications of the art.6, codicil 10 of Lombardic Law: In the lighting system of buildings and monuments they must be privileges systems to you of lighting system from the high one towards the bottom. Only in the case in which that it does not turn out possible and for subjects of particular and proven architectonic value, it makes us of light must remain at least a meter under the advanced edge of the surface to illuminate and, however, within the perimeter of the same ones supplying to the partial extinction or total, or to the lessening of power employed within the hours ventiquattro.
• Not to exceed in superficial the illuminated ones luminance of the surrounding areas (es. road, other buildings). In any case not to exceed one luminance of 1 cd/m ² (2 cd/m ² in the case of buildings of particular historical or architectonic value).
• In the case of industrial sheds to use lamps to sodio to the low pressure or systems with sensors of movement for the ignition of the emergency lighting system.
• In the case of buildings without some historical and artistic value to use lamps to sodio or systems with sensors of movement for the ignition of the emergency lighting system.
• In the lighting system of buildings and monuments control systems that supply to the partial extinction or total, or to the lessening of power employed within the hours must be supplied ventiquattro.

APPENDIX 1 -
REQUIREMENT ILLUMINOTECNICI OF THE ROADS WITH MOTORIZED TRAFFIC

APPENDIX 2 -
ECONOMIC ESTEEM

CieloBuio - Coordination for the Protection of the Nocturnal Sky