1、 ANSI E1.25 - 2012Recommended Basic Conditions for Measuring thePhotometric Output of Stage and Studio Luminairesby Measuring Illumination Levels Produced on aPlanar SurfacePhoto/2003-5001r7blank pageANSI E1.25 - 2012Recommended Basic Conditions for Measuring thePhotometric Output of Stage and Studi
2、o Luminairesby Measuring Illumination Levels Produced on aPlanar SurfaceDocument number Photo/2003-5001r7Approved as an American National Standard by the ANSI Board of Standards Reviewon 15 October 2012.This standard was originally published when the Entertainment Services andTechnology Association
3、was operating under the name of PLASA North America. ESTA has reverted to its original name, and this document has been rebranded with thecurrent corporate name and logo. No changes have been made to the contents of thestandard. 2017 ESTAANSI E1.25 - 2012 2017 ESTA. All rights reserved. Photo/2003-5
4、001r7Notice and DisclaimerESTA does not approve, inspect, or certify any installations, procedures, equipment or materials for compliance with codes, recommended practices or standards. Compliance with an ESTA standard or recommended practice is the sole and exclusive responsibility of the manufactu
5、rer or provider and is entirely within their control and discretion. Any markings, identification, or other claims of compliance do not constitute certification or approval of any type or nature whatsoever by ESTA.ESTA neither guarantees nor warrants the accuracy or completeness of any information p
6、ublished herein and disclaim liability for any personal injury, property or other damage or injury of any nature whatsoever, whether special, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on this document.In issuing and distributi
7、ng this document, ESTA does not either (a) undertake to render professional or other services for or on behalf of any person or entity, or (b) undertake any duty to any person or entity with respect to this document or its contents. Anyone using this document should rely on his or her own independen
8、t judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstance. Published By:Entertainment Services and Technology Association630 Ninth Avenue, Suite 609New York, NY 10036USAPhone: 1-212-244-1505Fax: 1-212-244-1502E
9、mail: standardsesta.orgpage iANSI E1.25 - 2012 2017 ESTA. All rights reserved. Photo/2003-5001r7The ESTA Technical Standards ProgramThe ESTA Technical Standards Program was created to serve the ESTA membership and the entertainment industry in technical standards related matters. The goal of the Pro
10、gram is to take a leadingrole regarding technology within the entertainment industry by creating recommended practices and standards, monitoring standards issues around the world on behalf of our members, and improving communications and safety within the industry. ESTA works closely with the techni
11、cal standards efforts of other organizations within our industry, including USITT and VPLT, as well as representing the interests ofESTA members to ANSI, UL, and the NFPA. The Technical Standards Program is accredited by the American National Standards Institute.The Technical Standards Council (TSC)
12、 was established to oversee and coordinate the Technical Standards Program. Made up of individuals experienced in standards-making work from throughout our industry, the Council approves all projects undertaken and assigns them to the appropriate working group.The Technical Standards Council employs
13、 a Technical Standards Manager to coordinate the work of the Council and its working groups as well as maintain a “Standards Watch” on behalf of members. Working groups include: Control Protocols, Electrical Power, Event Safety, Floors, Fog and Smoke, Followspot Position, Photometrics, Rigging, and
14、Stage Lifts.ESTA encourages active participation in the Technical Standards Program. There are several ways to become involved. If you would like to become a member of an existing working group, as have over four hundred people, you must complete an application which is available from the ESTA offic
15、e. Your application is subject to approval by the working group and you will be required to actively participate in the work of the group. This includes responding to letter ballots and attending meetings. Membership in ESTA is not a requirement. You can also become involved by requesting that the T
16、SC develop a standardor a recommended practice in an area of concern to you.The Photometrics Working Group, which authored this Standard, consists of a cross section of entertainment industry professionals representing a diversity of interests. ESTA is committed to developing consensus-based standar
17、ds and recommended practices in an open setting.page iiANSI E1.25 - 2012 2017 ESTA. All rights reserved. Photo/2003-5001r7Contact InformationTechnical Standards ManagerKarl G. RulingESTA630 Ninth Avenue, Suite 609New York, NY 10036USA1-212-244-1505karl.rulingesta.org Asst. Technical Standards Manage
18、rErin GrabeESTA630 Ninth Avenue, Suite 609New York, NY 10036USA1-212-244-1505erin.grabeesta.org Technical Standards Council ChairpersonsMike GarlMike Garl Consulting LLC1-865-389- Mike WoodMike Wood Consulting LLC1-512-288- Photometrics Working Group ChairpersonJerry GorrellTheatre Safety Programs1-
19、480-837- page iiiANSI E1.25 - 2012 2017 ESTA. All rights reserved. Photo/2003-5001r7AcknowledgmentsThe Photometrics Working Group members when this document was approved by the working group on 21 March 2012 are shown below. Voting members:Ron Bonner; PLASA EU; GKimberly Corbett; Schuler Shook; DERy
20、an Fletcher; Arnold MPJerry Gorrell; Theatre Safety Programs; UJefferey Knox; Schuler Shook; DEMichael Lay; Royal Philips Electronics ; MPMark Ravenhill; GLP German Light Products GmbH; MPKarl G. Ruling; Unit 12 Productions; DEMarkus Salm; GLP German Light Products GmbH; MPKen Vannice; Leviton Manuf
21、acturing Co., Inc.; MPMike Wood; Mike Wood Consulting LLC; GChris Wyatt; Royal Philips Electronics ; MPObserver (non-voting) members: Robert Barbagallo; Solotech Inc.; DRDavid Bertenshaw; David Bertenshaw; GLee J. Bloch; Bloch Design Group, Inc.; UAndr Broucke; Andr Broucke; GLarry Busch; ADB Lighti
22、ng Technologies; MPJames Eade; PLASA; GBill Ellis; Candela Controls, Inc.; UGregg Esakoff; Electronic Theatre Controls, Inc.; MPJoseph M. Good III; Spectrum Professional Services; GCharles H. Green; Charles H. Green; UTim Hansen; Oasis Stage Werks; UMitch Hefter; Mitch Hefter; GA C Hickox; Domingo G
23、onzalez Associates; UEd Hyatt; Boston Illumination Group; CPFrancois Juliat; Robert Juliat; MPDennis Thykjr Jrgensen; Martin Professional A/S; MPHiroshi Kita; Marumo Electric Co., Ltd.; MPBill Klages; New Klages Inc.; ULarry Lieberman; Vision Quest Lighting; CPRick Loudenburg; Barbizon Companies; DR
24、John Luk; Altman Stage Lighting; MPDoug MacDonald; Designlab Chicago Inc.; DRJim McHugh; Humboldt State University; UMartin Moore; DEAfsan Quazi; Lighting GJohn T. Ryan; Altman Stage Lighting; MPRon Rykowski; Radiant Imaging, Inc.; GFrancesc Rodelles Vinyoles; Institut del Teatre; DGarrett Young; Pr
25、ism Projection, Inc.; MPInterest category codes:CP = custom-market producer DE = designerDR = dealer rental company G = general interestMP = mass-market producer U = userpage ivANSI E1.25 - 2012 2017 ESTA. All rights reserved. Photo/2003-5001r7Table of Contents1 Scope62 Selection Of Luminaires, Lamp
26、s, Ballasts, And Drivers.63 Basic Conditions64 Test Lamp Calibration65 Lamp Operation During Luminaire Testing76 Test Measurement Equipment.7page 5ANSI E1.25 - 2012 2017 ESTA. All rights reserved. Photo/2003-5001r71 ScopeThis document describes the basic conditions for measuring the photometric outp
27、ut of a stage or studio luminaire by testing methods that measure the illumination levels produced by the luminaire on a planar surface. These testing methods include, but are not limited to, measurements taken by digital cameras or hand-held meters. This standard is not intended to give guidance on
28、 testing conditions for testing methods that use goniophotometers. 2 Selection Of Luminaires, Lamps, Ballasts, And Drivers2.1 The luminaire selected for testing shall be representative of the manufacturers product being tested.2.2 The lamp used for the testing shall be representative of the lamps th
29、at are intended to be used in the luminaire.2.3 With luminaires that use discharge lamps, the ballasts used shall be representative of the ballasts recommended by the luminaire manufacturer for the luminaires. 2.4 With luminaires that use LED sources, the drivers used shall be representative of the
30、drivers recommended by the luminaire manufacturer for the luminaires. 3 Basic ConditionsPrecautions shall be taken to eliminate stray light from the test so that the stray light is less than the margin of error of the testing equipment.The temperature of the test area shall be maintained at 25C 1C (
31、77F 2F) for fluorescent lamps and LED sources, and at 25C 5C (77F9F) for all other types of lamps.4 Test Lamp CalibrationThis standard does not require test lamp calibration in all cases, but test lamp calibration may be appropriate depending on the intended use of the data being collected by the me
32、asurements. Some consideration of the variability of lamp output must be used if the measurements from the testing are to beextrapolated to a population of luminaires.4.1 If a statistically small number of luminaires are to be tested, and some statement about the performance an end-user can expect f
33、rom any luminaire out of the population of luminaires of the same type is intended to be made, the test lamps output shall be calibrated using the calibration method used by the lamp manufacturer. This will allow normalizing the measured data relative to the rated lumen output of the lamp.4.2 If som
34、e statement about the performance an end-user can expect from any luminaire out of the population of luminaires of the same type is intended to be made, but a statistically significant number of luminaires are to be tested, lamp calibration is not required. In lieu of lamp calibration, the output of
35、 the luminaires in a significantly large sampling may be measured. This will allow the mean to be reported, along with the standard deviation and sample size, or along with the confidence interval of the true population mean. Lamp calibration, as described in 4.1, may be used.4.3 If the intention is
36、 to make a statement about the efficiency of the optical system, the lamp must be calibrated while operated in the conditions found in the luminaire. These conditions would include the temperatures, operating position, current, and voltage found in the luminaire.Caution: Measuring voltage and curren
37、t under luminaire operating conditions may involve exposure to hazardous voltages. All measurements shall be made by qualified personnel who are able to recognize the dangers and to take appropriate remedial action.page 6ANSI E1.25 - 2012 2017 ESTA. All rights reserved. Photo/2003-5001r75 Lamp Opera
38、tion During Luminaire Testing5.1 Luminaire tests with incandescent lamps are to be performed with the lamp operated within 1% of theluminaire manufacturers rated voltage. The lamp shall be operated at the rated voltage in the luminaire for at least 15 minutes before the testing begins.5.2 Luminaire
39、tests with discharge lamps are to be performed with the ballast specified by the luminaire manufacturer operated on a supply within 1% of the input voltage specified by the luminaire manufacturer.The discharge lamp shall be operated in the luminaire until the light output is stable.5.3 Luminaire tes
40、ts with LED sources are to be performed with the driver specified by the luminaire manufacturer operated on a supply within 1% of the input voltage specified by the luminaire manufacturer.The LED source or sources shall be operated in the luminaire until the light output is stable.6 Test Measurement EquipmentAll measurement equipment used in luminaire testing shall be calibrated and used in accordance with the equipment manufacturers instructions and recommendations.page 7
