# IESNA: LM-63-1995 # [TEST] 768861 # [DATE] 12/28/01 # [MANUFAC] COOPER LIGHTING # [LUMCAT] ACN25SXX55X4XR # [LUMINAIRE] GENERATIONS POST TOP # [MORE] W/TALL SPUN TOP # [LAMP] 250 WATT HPS CLEAR E-18 # [_REFLECTOR] SPUN ALUMINUM # [_REFRACTOR] TYPE 5 ACRYLIC # [_SOCKETPOS] FIXED BASE DOWN # [_LAMPLUMENS] 27500 # TILT=NONE # Bulbs: 1, 27500 lm each # Number of measured angles: 47 vertical, 1 horizontal ones # Photometric type: 1, Units type: 1 # Luminous openig width, length and height: 0.000 0.000 0.000 # Ballast factor: 1, Input power: 250 W # Source file: acn2s54r.ies # Luminaire flux = 21181 lx, # 77.0 % of the bulb flux # between 75 and 90: 24.3 % of the luminaire flux # - this part causes just GLARE in case of road lighting and similar purposes # 80deg and above: max 146.4 cd/1000lm , 19.5 % of the luminaire flux # 90deg and above: max 28.6 cd/1000lm , 9.3 % of the luminaire flux # CutOff Type: IES_Semi-CutOff # Increase of Sky Luminance due to light going # from the luminaire difectly above horizon, as compared with the # luminance produced by the light dispersed from the ground: 237 % # Increase of Sky Luminance in Distant Places by light below 30.0 degrees # due to light going from the luminaire directly above horizon: 455 % # (for the zenith luminance such an angle suits places up to 10 km distance) # The increases concern the following situation: # Albedo = 0.10 # Zenith Extinction = 0.30 mag (i.e., direct light remaining 76 %) # Indicatrix type =0 (0: acc. to P.Cinzano, 4..6: CIE sky types) # (the downward-scattered part of lambertian uplight is 0.1108 then) # Illumination of a rectangle of 0.0:1.0:-2.5:2.5 pole heights: # Per cent of luminaire output falling there: 11.2 # for a unit case (glass at 1 m height, 1000 lm bulb) its illumination: # Maximum: 20.0 lx # Average: 17.2 lx # Minimum: 7.2 lx # Average/Minimum: 2.4 # The following table gives luminous intensities which would be produced # using a hypotetic bulb giving a luminous flux of 1000 lm (i.e., cd/klm): 0.0 7.6 2.5 7.2 5.0 7.2 7.5 9.0 10.0 10.3 12.5 13.7 15.0 15.6 17.5 16.7 20.0 17.5 22.5 19.4 25.0 21.9 27.5 24.5 30.0 28.1 32.5 33.0 35.0 31.7 37.5 32.6 40.0 37.3 42.5 43.6 45.0 49.6 47.5 56.1 50.0 64.0 52.5 75.5 55.0 92.3 57.5 111.2 60.0 143.6 62.5 203.1 65.0 248.6 67.5 265.5 70.0 262.5 72.5 249.6 75.0 223.2 77.5 191.5 80.0 146.4 82.5 99.9 85.0 63.2 87.5 38.2 90.0 28.6 95.0 21.2 105.0 16.4 115.0 12.5 125.0 9.2 135.0 6.5 145.0 4.0 155.0 1.8 165.0 0.3 175.0 0.0 180.0 0.0