5 years - Sill Lighting

Lighting Planning according to EN 12464-1,issue 2011-08IlluminanceThe right degree and uniformityof the lighting intensity (lx) havea considerable impact on howquickly and securely a visualtask can be comprehended andcarried out.Guidelines for lighting design incompliance with EN 12464-1CorridorsOffices, archivesOffices,reception deskOffices, filing, copying,traffic zones etc.Offices, writing,reading, EDP areaOffices,CAD workplacesOffices, conferenceand meeting roomsOffices,technical drawingThe lighting intensity should beincreased considerably if thevisual tasks demand accuracyor enhanced productivity.Maintained illuminance* E min area of visual task 100 200 300 300 500 500 500 750Maintained illuminance* E min immediate surrounding area 100 150 200 200 300 300 300 500Uniformity 0,4 0,4 0,6 0,4 0,6 0,6 0,6 0,7UGR limit value 28 25 22 19 19 19 19 16Colour rendering index R a > 40 80 80 80 80 80 80 80* Determination of maintained luminance in accordance with maintenance scheduleArrangement of the calculationand measuring point gridGrid pointsRecommended number of grid points in relation to the distancesbetween the grid points in accordance with EN 12464-1The EN 12464-1 standard nowdefines the arrangementof the grid to guarantee thecomparability of different lightingcalculations:- if possible, quadraticpartitioning - ratio of length towidth of a grid field between0.5 and 2- maximum grid size:p = 0.2 x 5 logdpSide length Maximum distance Minimum numberarea between grip points p of grid points0,40 m 0,15 30,60 m 0,20 31,00 m 0,20 52,00 m 0,30 65,00 m 0,60 810,00 m 1,00 1025,00 m 2,00 1250,00 m 3,00 17100,00 m 5,00 20140 WILA