BS EN 12193:2008 pdf free download – Light and lighting一 Sports lighting.
6 Requirements for the lighting of sports most practised in Europe
6.1 General requirements
Annex A contains 28 tables of requirements to which, in addition, the following general points apply.
a) All illuminances quoted in the tables are maintained and apply to the principal area (PA).
Furthermore, when total areas (TA) are specified in the tables, their illuminance requirements shall additionally be a minimum of 75 % of those of the principal area (PA) of the sport being considered.
b) In multi-purpose halls better colour rendering than that stated in the tables can be required to reveal the pitch markings.
c) Reference area dimensions are rounded and given only as an indication in order to determine the number of grid points. For exact dimensions the individual sporting federation should be contacted. For some sports there is a variation in the dimensions of the playing area that affects the number of grid points. Typical minimum and maximum dimensions are shown in the tables together with the corresponding number of points.
d) Tables of requirements are based primarily on the needs of the participants. It is necessary to ensure a minimum vertical component. This shall not be less than 30 % of the horizontal level.
e) It is important that the standard of play and spectator viewing distance are both taken into account in selecting the class of lighting to be used. The higher the standard of play and the longer the spectator viewing distance, the higher the class of lighting that shall be selected.
f) Semi-cylindrical illuminances can also be taken into account but no guidance levels have been provided as actual values will be dependant on both viewing positions and type of installation.
The following explanations and Table 3 assist in the selection of the lighting class.
Lighting Class I: Top level competition such as international and national competition which will generally involve large spectator capacities with long potential viewing distances. Top level training can also be included in this class.
Lighting Class II: Mid level competition such as regional or local club competition which generally involve medium size spectator capacities with medium viewing distances. High level training can also be included in this class.
Lighting Class Ill: Low level competition such as local or small club competition which generally do not involve spectators. General training, physical education (school sports) and recreational activities will also come into this category.
6.3 Specific requirements for colour television and film recording
6.3.1 Vertical illuminance
The illuminance on a vertical plane forms the basis of the lighting requirements for CTV and film systems.
Where vertical illuminance is determined calculation points shall be as specified in the tables of lighting requirements in Annex A, on grid points at 1 m height (default value).
When the main camera has an undefined position somewhere in an area bordering one of the side-lines of say a football pitch, the illuminances on vertical planes facing that side line shall fulfil the requirements for level and uniformity.