Utilisation factor diagram - PDF document

Utilisation factor diagram 90°90°60°60°30°30° 21 Kerbside Publiclightingauthoritiesalloverthecountryarefindingitincreasingly difficult to cope with an ever-increasing volume, Public Lighting Authorities, Lighting Engineers and other users of Road Lighting Installations would like to find out the various values High Intensity Discharge Lamp due to its high luminous efficacy,uniformity, glare values etc. The illuminance deals mainly with the amount of light falling on the road surface and the luminance installations. Since the surface brightness of the lamp is higher,only for proper light distribution on the road surface, but also to preventthedirectglarefromtheluminaire.Aids to Road Lighting DesignCFL lamps for highways, main roads, arterial roads, lanes and by-type of luminaire are required for a particular road lighting installation. The polar intensity diagram provides a rough idea of the international standards and code of practices. With highly efficient with,thinlayerofglasscoatedreflectorswhichincreasedistribution of the luminaire, viz. cut-off, semi cut-off and non cut-diagram the luminous intensity is given in the form of a polar curve.Utilisation Factor DiagramsClassificationLevelUniformityGroup A130 lux0.4Group A215 lux 0.4Group B18 lux 0.3Group B2 4 lux 0.3As per the IEC Publication 598-2-3 (1979), in the latest BIS 10322 (Part 5/sec 3) 1987, the above concept of light distribution control. To indicate the suitability or otherwise for a given application. Luminaire characteristics are to be specified by the above parameters based on: TM 2703003303309000300060 Polar Light Distribution Curve Roadway Lighting of a "utilisation curve" or by illuminance of a straight road of infinite length, is by using the the luminous flux from a luminaire, expressed as a fraction of the utilisation factor curves given in lamp flux, emitted in the zone subtended at the luminaire by the the Photometric Data Sheets C=0 plane and the sloping plane, through a longitudinal roadway and the following formula:line. The longitudinal roadway line may be defined by its lateral angle (angle in the C = 90 plane) or by its lateral distance from the longitudinal roadway line beneath the luminaire as a function of luminaire mounting height.Where:Thus, there are two possible forms of utilisation factor diagrams, as shown in Fig. 1. The sum of asymptotic utilisation factors on the = Luminous flux of the lampkerbside and the road gives the downward light output ratio of the W= Width of the roadluminaire. This diagram may be used to determine the average S= Spacing between the luminairesilluminance in any longitudinal strip parallel to a long line of =UtilisationfactorIn outdoor lighting the utilisation factor is defined as that fraction of the luminous flux coming from a luminaire which actually reaches the road : The value of the illuminance at point p on a road, consists of the sumof the partial illuminance produced by all the lanterns (neglecting illuminance contributions from any other light sources there may From this definition formula (1) may be derived as be) where IE, Ci is the luminous intensity of lantern i in the direction of point p as indicated the angles i and Ci (see Fig. 2 - illuminanceatpointpbylanterni).With this formula, it is possible to Computer- Aided Lighting Designsare plotted on a plane of the systems with a fair degree of confidence and without resorting to together, the result forms what is experimentation. This has been done considering the practical impossibility of carrying out manual calculations for multi lamp installations in large areas. Also, this has the added advantage of maximum illuminance, for every mounting height, as the relative isolux diagram on plane to be illuminated Emax=100% (see Fig.3).which is appropriate. Prior to carrying out the computer To obtain illuminance from a lantern i at point p, all that is necessaryHowever, for computer aided design exhaustive photometric data of diagram at point p. This read-off value should be multiplied by Emax the luminaires are required and with the help of software the results are obtained. Luminaires Division of BEL not only provides modern outdoor software for illumination design to the Architects, Consultants, Project Authorities and the users on request. State-of- 0.10.20.30.4 Kerbsideroadside Fig 2 CKPh Fig 3 2hh0h2h2h3hh0 Kerbside RoadsideRelative Isolux diagram Eav =... (1) L (utilisedofallluminares)(utilisedofoneluminare)(areaoftheroad)(areaoftheroad) 410 27 DIA 535 490 100 120 29 I/S BJSLA 111/118 CFLDegree of Protectionpowder coated CRCA sheet steel gear tray, clear acrylic with felt gasket20 mm OD entry for direct mounting on pipe bracket.gear tray.BJSLA 136 CFLDegree of Protectionpowder coated CRCA sheet steel gear tray, clear acrylic with rubber gasket fixed to the housing by 6 nos. toggles.25 mm OD entry for direct mounting on pipe bracket. 395155140 57551035 I/S172125 Retro-fit CFL roadway luminaireNote: Suffix in cat. ref indicates AL - Aluminium housingDegree of Protectioncoated CRCA sheet steel gear tray, clear acrylic with rubber gasket fixed 30 mm OD entry for direct mounting on pipe bracket.gear tray. Degree of ProtectionBlack epoxy powder coated sheet CRCA housing, with perforated lamp holder cover, clear acrylic with rubber gasket fixed to the housing by 4 30 mm OD entry for direct mounting on pipe bracket.body.Allelectricalaccessoriessuitablefor 85W retro-fit CFL lamp are wired Roadway Lighting 700265 Degree of ProtectionGrey hammertone stove enamelled finish die-cast aluminium housing,single piece integral luminaire with highly transparent acrylic bowl,anti-moth treated felt gasket fixed to the housing with SS toggles.Side mounting arrangement for 50 mm OD for pipe entry.Suitable for 250W HPSV lamp. GES lamp holder, open construction control gear, integral, HID lamp Degree of ProtectionGrey hammertone stove enamelled finish sheet aluminium housingintergral luminaire, clear acrylic bowl with anti-moth treated felt gasketpipe bracket.Suitable for 70W HPSV lamp. E-27 lamp holder, open construction 195 control gear, integral, HID lamproadway luminaire Roadway LightingDegree of ProtectionGrey hammertone stove enamelled finish sheet aluminium housingintergral luminaire, clear acrylic bowl with anti-moth treated felt gasketbracket.Suitable for 150/250W HPSV lamp. GES lamp holder, open B PIPEENTRYFOR40TO50mmODGIPIPE Cat. Ref. BJMSD 04 150 SV520555260BJMSD 04 250 SV300 mm360 mm Degree of ProtectionGrey hammertone stove enamelled finish sheet aluminium housinganti-moth treated felt gasket by SS toggles.2 nos. U bolts are provided to hold 40 to 50 mm OD pipe bracket for BJMSD 1150 SV FG SH.Side entry mounting for 40-50mm pipe bracket in BJMSD 1250 SV FG SH.Inner side of the lamp housing is white painted and fixed with side reflector.Suitable for 150/250W HPSV lamp. GES lamp holder, open construction BJMSD110V FG SHBJMS 1250 SV FG SH 115 Pipe EntryOD GI Pipe 560120 BGEST 150/250 SV IP65 ACR322 Luminaire Body:Degree of Protectionaluminium frame fixed with highly transparent acrylic hinged to the housing rubber gasket and SS toggle.Side entry mounting for 40-50mm OD pipe bracket.Electrochemicallybrightened,polishedfinishcomputerSuitable for 150/250W HPSV lamp. GES lamp holder, open full frame and acryilc cover, 470 Pipe entry for Max.width - 216 mm BGEST 02 70 SV IP65 FGIntegral, single piece, cast aluminium with full glass cover reflector luminaire Degree of ProtectionGrey epoxy powder coated single piece cast aluminium housing, clear,toughend full glass cover fixed to the housing with rubber gasket and SS Side entry mounting for 40-50 mm OD pipe bracket.Electrochemicallybrightened,polishedfinishcomputerSuitable for 70W SV/MH lamp. E-27 lamp holder, open construction Roadway Lighting 610 Pipe entry for Max.width - 306 mmBGEST 150 SV/MH IP 65 FGBGEST 250 SV/MH IP 65 FG SHfull glass cover reflector luminaire BGEST150SV/MHIP66FFGBGEST250SV/MHIP66FFGfull frame glass cover, reflector Degree of Protectionaluminium frame fixed with clear, toughned glass with rubber gasket by Side entry mounting for 50-60 mm OD pipe bracket.Electrochemicallybrightened,polishedfinishcomputerSuitable for 150/250W SV/MH lamp. GES lamp holder, open IP 66 (Lamp compartment only) PIPEENTRY Cat. Ref.700205 Degree of ProtectionGrey epoxy powder coated single piece cast aluminium housing, clear,toughend full glass cover fixed to the housing with rubber gasket and SS Side entry mounting for 40-50 mm OD pipe bracket.Electrochemicallybrightened,polishedfinishcomputerSuitable for 150/250W SV/MH lamp. GES lamp holder, open Pipe entry for Degree of Protection Ivory powder coated die-cast aluminium frame fixed with heat resistant toughened clear glass and rubber gasket. Aqua blue powder Computeraidedpotopticaluminiumreflectorwithfinish.Suitable for 250/400W SV/MH lamp. GES lamp holder, copper ballast IP 66 (Lamp compartment only)NOTE: Luminaire is available with curved glass on request. Single toggle, single piece, cast aluminium,TOP opening reflector luminaires "JET" Pipe entryBGWRL70/150SV/MHFFG Degree of ProtectionIvory powder coated die-cast aluminium frame with heat resistant toughened clear glass fixed with rubber gasket. Aqua blue powder Side entry mounting for 40-50 mm OD pipe bracket.Computeraidedpotopticaluminiumreflectorwithfinish.Suitable for 70/150 W SV/MH lamp. E-27/E-40 lamp holder, open IP 66 (Lamp compartment only) "WAVE"Cat. Ref.545145 BGWRL 70 SV/MH FFGBGWRL 70 SV/MH FFG Roadway Lighting Pipe entry for Degree of ProtectionIvory powder coated die-cast aluminium frame with heat resistant clear glass with rubber gasket. Aqua blue powder coated die-cast aluminium Side entry mounting for 50-60 mm OD pipe bracket.Computeraidedpotopticaluminiumreflectorwithfinish.Suitable for 250W SV/MH lamp. GES lamp holder, open construction IP 66 (Lamp compartment only)NOTE: Luminaire is available with curved glass on request. Single toggle, Cast aluminium, TOP opening reflector luminaires BGWRL 250 SV/MH FFG "WAVE" "WAVE" 225 PipeEntryfor50to60mmODGIPipeMax.width-350mmTOPopeningsinglepiece,castaluminiumhousingwithfullframe&glassintegralluminairesDegree of ProtectionIvory powder coated die-cast aluminium frame fixed with heat resistant toughened clear glass fixed to the framewithrubbergasket.Aquabluepowder coated die-cast aluminium housing locked to the frame by Side entry mounting for 50-60 mm OD pipe bracket.Electrochemicallybrightened,polishedandfinishcomputerSuitable for 250W HPSV/MH lamp. GES lamp holder, open IP 65 (Lamp compartment only) "Dolphin" NOTES BRANCH PHONE FAX E-mail27543964-27543967079-27543950lum_am_ahm@bajajelectricals.com106, Sakar III, Off Ashram RoadNavrangpura, Ahmedabad 380 014BANGALORE22235486-22238984080-22214878lum_am_ban@bajajelectricals.comBajaj Bhavan, No. 16, Residency Road,22275505Bangalore 560 0252390697-23969800674-2390294lum_am_bhu@bajajelectricals.comKharavela Nagar, Janpath, Bhubaneswar 751 0015005778 - 50057790172-2792932lum_am_chd@bajajelectricals.comSCO 52, Sector-26, Madhya Marg, Chandigarh 160 02652162200044-52163300lum_am_che@bajajelectricals.com142, Anna Salai, Chennai 600 0022391119-23920390484-2391744lum_am_ccn@bajajelectricals.comCRL House, 42/1107, Tata Oil Mills Rd, Cochin 682 018.COIMBATORE2320954…lum_am_cmb@bajajelectricals.com41, Damu Nagar, Puliyakulam, Coimbatore 641 04523236055-23056-5057011-23230214lum_am_del@bajajelectricals.com1/10, Asaf Ali Road, New Delhi 110 002GUWAHATI2346497-23464990361-2346496lum_am_guw@bajajelectricals.comAgarwal House, Christian Basti,G.S. 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