Le présent document spécifie les classes d'éclairage mentionnées dans la NF EN 13201-2 et fournit des lignes directrices pour sélectionner la classe la mieux adaptée à une situation donnée. A ce titre, il fait appel à un système visant à définir des classes d'éclairage appropriées pour différentes zones publiques extérieures en termes de paramètres pertinents pour atteindre les buts exposés en préambule.

This European Standard specifies measurement conditions and procedures for measuring the photometric quality parameters of road lighting installations, i.e. the quantities that quantify their performances in accordance with EN 13201-2 lighting classes. Parameters used for quantifying the energy performance of road lighting installations are not considered. A methodology to evaluate the road lighting performances considering tolerances in the design parameters is described in the informative Annex A.

This European Standard specifies the conventions and mathematical procedures to be adopted in calculating the photometric performance of road lighting installations designed in accordance with the parameters described in EN 13201-2 to ensure that every lighting calculation is based on the same mathematical principles. The design procedure of a lighting installation also requires the knowledge of the parameters involved in the described model, their tolerances and variability. These aspects are not considered in this part of EN 13201 but a procedure to analyse their contribution in the expected results is suggested in EN 13201-4 and it can also be used in the design phase.

This document specifies the lighting classes M, C and P set out in EN 13201-2 and gives guidelines on the application of these classes. For this purpose, parameters are given that are relevant to the lighting of outdoor traffic areas. These are usually provided by the competent authorities for public traffic areas or by private decision-makers for non-public traffic areas. For comparability in the application of the different lighting classes, this document presents practical relationships in the form of comparable lighting classes. This document contains specifications for the selection of the area considered, on which the lighting classes according to DIN EN 13201-2 as well as the calculation grid and procedures according to DIN EN 13201-3 and energy efficiency criteria according to DIN EN 13201-5 are to be applied. The parameters used in this document allow: a) the description of a lighting situation in dependence on: the position of the area considered; the specific traffic present on the area; the influence of the environment. b) the special consideration of conditions that enable the effective use of energy. This document does not specify criteria for deciding whether to illuminate a traffic area or how to use a lighting system. It does not contain instructions for selecting the lighting classes for pedestrian crossings, tunnels, canals or locks. This document does not apply to the lighting of pedestrian crossings. For these, DIN 67523-1 and DIN 67523-2 apply.

This document defines performance requirements which are specified as lighting classes for road lighting aiming at the visual needs of road users, and it considers environmental aspects of road lighting.

This part of the European Standard defines how to calculate the energy performance indicators for road lighting installations using the calculated power density indicator (PDI) and the calculated annual energy consumption indicator (AECI). Power density indicator demonstrates the energy needed for a road lighting installation, while it is fulfilling the relevant lighting requirements specified in EN 13201-2. The annual energy consumption indicator determines the power consumption during the year, even if the relevant lighting requirements change during the night or seasons. These indicators may be used to compare the energy performance of different road lighting solutions and technologies for the same road lighting project. The energy performance of road lighting systems with different road geometries or different lighting requirements cannot be compared to each other directly, as the energy performance is influenced by, amongst others, the geometry of the area to be lit, as well as the lighting requirements. The power density indicator and annual energy consumption indicator apply for all traffic areas covered by the series of lighting classes M, C and P as defined in EN 13201-2.