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    EN 12665-2018 en Light and lighting - Basic terms and criteria for specifying lighting requirements.pdf

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    EN 12665-2018 en Light and lighting - Basic terms and criteria for specifying lighting requirements.pdf

    1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Light and lighting - Basic terms and criteria for specifying lighting requirementsBS EN 12665:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12665 June 2018 ICS 01.040.91; 91.160.01 Supersedes EN 12665:2011Eng

    2、lish Version Light and lighting - Basic terms and criteria for specifying lighting requirements Lumire et clairage - Termes de base et critres pour la spcification des exigences en clairage Licht und Beleuchtung - Grundlegende Begriffe und Kriterien fr die Festlegung von Anforderungen an die Beleuch

    3、tung This European Standard was approved by CEN on 8 February 2018. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographica

    4、l references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility o

    5、f a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Ma

    6、cedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALI

    7、SATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12665:2018 ENational forewordThis British Standard is the UK implementa

    8、tion of EN 12665:2018. It supersedes BS EN 12665:2011, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EL/1, Light and lighting applications.A list of organizations represented on this committee can be obtained on request to its secretary.This publicat

    9、ion does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 90754 8ICS 01.040.91; 91.160.01Compliance with a British Standard cannot confer

    10、immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 12665:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN

    11、 12665 June 2018 ICS 01.040.91; 91.160.01 Supersedes EN 12665:2011English Version Light and lighting - Basic terms and criteria for specifying lighting requirements Lumire et clairage - Termes de base et critres pour la spcification des exigences en clairage Licht und Beleuchtung - Grundlegende Begr

    12、iffe und Kriterien fr die Festlegung von Anforderungen an die Beleuchtung This European Standard was approved by CEN on 8 February 2018. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national

    13、 standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version

    14、 in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czec

    15、h Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kin

    16、gdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12

    17、665:2018 EBS EN 12665:2018EN 12665:2018 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 3.1 Eye and vision . 5 3.2 Light and colour . 8 3.3 Lighting equipment . 23 3.4 Daylight 33 3.5 Lighting installations 35 3.6 Lighting measu

    18、rements . 47 4 Framework for the specification of lighting requirements 49 4.1 General . 49 4.2 Illuminance . 49 4.3 Luminance 49 4.4 Glare 49 4.4.1 Disability glare 49 4.4.2 Discomfort glare . 49 4.5 Colour . 50 4.5.1 Colour rendering 50 4.5.2 Light source colour 50 4.6 Energy. 50 4.7 Maintenance .

    19、 50 4.7.1 Maintenance . 50 4.7.2 Maintenance factor 50 4.8 Measurements and calculations . 50 Annex A (informative) Additional explanation of defined terms 51 Annex B (informative) Index of terms . 54 Bibliography . 63 BS EN 12665:2018EN 12665:2018 (E) 3 European foreword This document (EN 12665:201

    20、8) has been prepared by Technical Committee CEN/TC 169 “Light and lighting”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2018, and conflicting

    21、 national standards shall be withdrawn at the latest by December 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document will supersede E

    22、N 12665:2011. The main technical changes in this revision are the inclusion of terms previously absent, collated from: EN 1837; EN 1838; EN 12193; EN 12464; EN 13032; EN 13201; and EN 15193. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following coun

    23、tries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Po

    24、land, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12665:2018EN 12665:2018 (E) 4 Introduction This European Standard specifies a basic framework intended to be used for the specification of lighting requirements. Where a term is cont

    25、ained in CIE Publication CIE S 017/E:2011 ILV, International Lighting Vocabulary or IEC 60050-845, International Electrotechnical Vocabulary, Chapter 845: Lighting, a reference is given to the equivalent term where the terms in both documents are, for all practical purposes, identical. For some term

    26、s additional explanation is given in informative Annex A. An index of terms is given in informative Annex B. The lighting requirements for a space are determined by the need to provide: adequate illumination for safety and movement; conditions that will facilitate visual performance and colour perce

    27、ption; and acceptable visual comfort for the occupants in the space. The relative importance of these factors will vary for different applications. This basic framework covers aspects in the field of vision, photometry and colorimetry, involving natural and man-made optical radiation over the UV, th

    28、e visible and the IR regions of the spectrum, and application subjects covering all usages of light, indoors and outdoors, including environmental, energy and sustainability requirements and aesthetics and non- image forming biological aspects. Peculiar and specific terms can be defined in applicati

    29、on standards. Considerations should also be given to the energy used by lighting and to maintenance. The parameters that need to be specified to ensure good visual conditions and an efficient lighting installation are common to many applications. These are dealt with in Clause 4 of this standard. LE

    30、D terms and definitions already existing within EN 62504 have not been included in this standard. For terms and definitions concerning daylight openings within a building envelope the following standards may also be consulted: EN 12216, Shutters, external blinds, internal blinds - Terminology, gloss

    31、ary and definitions EN 12519, Windows and pedestrian doors - Terminology BS EN 12665:2018EN 12665:2018 (E) 5 1 Scope This document defines basic terms and definitions for use in all lighting applications. This document also sets out a framework for the specification of lighting requirements, giving

    32、details of aspects that are to be considered when setting those requirements. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. Fo

    33、r undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-845:1987, International Electrotechnical Vocabulary Chapter 845: Lighting CIE S 017/E:2011, ILV: International Lighting Vocabulary 3 Terms and definitions For the purposes of this docume

    34、nt, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 Eye and vision 3.1.1 ada

    35、ptation process by which the state of the visual system is modified by previous and present exposure to stimuli that can have various luminances, spectral distributions and angular subtenses Note 1 to entry: The terms light adaptation and dark adaptation are also used, the former when the luminances

    36、 of the stimuli are of at least several candelas per square metre, and the latter when the luminances are of less than some hundredths of a candela per square metre. Note 2 to entry: Adaptation to specific spatial frequencies, orientations, sizes, etc. are recognized as being included in this defini

    37、tion. SOURCE: IEC 60050-845:1987 845-02-07 / CIE S 017/E:2011; 17-18 3.1.2 accommodation adjustment of the dioptric power of the crystalline lens by which the image of an object, at a given distance, is focused on the retina SOURCE: IEC 60050-845:1987 845-02-44 / CIE S 017/E:2011; 17-10 3.1.3 visual

    38、 acuity visual resolution capacity for seeing distinctly fine details that have very small angular separation SOURCE: IEC 60050-845:1987 845-02-43 / CIE S 017/E:2011; 17-1403, modified - quantitative definition detached, see 3.1.15 BS EN 12665:2018EN 12665:2018 (E) 6 3.1.4 brightness DEPRECATED: lum

    39、inosity attribute of a visual perception according to which an area appears to emit, or reflect, more or less light Note 1 to entry: The use of this term is not restricted to primary light sources. SOURCE: IEC 60050-845:1987 845-02-28 / CIE S 017/E:2011; 17-110 3.1.5 contrast assessment of the diffe

    40、rence in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, colour contrast, simultaneous contrast, successive contrast, etc.) EXAMPLE By the proportional variation in contrast near the luminance threshold (L/L) or by the r

    41、atio of luminances for much higher luminances (L1/L2). SOURCE: IEC 60050-845:1987 845-02-47 / CIE S 017/E:2011; 17-251, modified - definition of contrast in the physical sense detached, see 3.1.16 3.1.6 brightness contrast subjective assessment of the difference in brightness between two or more sur

    42、faces seen simultaneously or successively 3.1.7 colour contrast subjective assessment of the difference in colour between two or more surfaces seen simultaneously or successively 3.1.8 glare condition of vision in which there is discomfort or a reduction in the ability to see details or objects, cau

    43、sed by an unsuitable distribution or range of luminance, or by extreme contrasts Note 1 to entry: See also “disability glare”, “discomfort glare” SOURCE: IEC 60050-845:1987 845-02-52 / CIE S 01/E 7:2011; 17-492 3.1.9 flicker impression of unsteadiness of visual sensation induced by a light stimulus

    44、whose luminance or spectral distribution fluctuates with time SOURCE: IEC 60050-845:1987 845-02-49 / CIE S 017/E:2011; 17-443 BS EN 12665:2018EN 12665:2018 (E) 7 3.1.10 visual field field of vision extent of space in which objects are visible to an eye in a given position and direction of view Note

    45、1 to entry: In the horizontal plane meridian the field of vision extends to nearly 190 with both eyes open, the area seen binocularly is about 120, and the area seen by one eye only is about 154. Note 2 to entry: The extent of the field of vision tends to diminish with age SOURCE: CIE S 017/E:2011;

    46、17-430 3.1.11 visual performance performance of the visual system as measured for instance by the speed and accuracy with which a visual task is performed SOURCE: IEC 60050-845:1987 845-09-04 3.1.12 visual comfort subjective condition of visual well-being induced by the luminous environment 3.1.13 r

    47、eaction time minimum time interval between the occurrence of an event demanding immediate action and the response to the event (unit: s) Note 1 to entry: The reaction time includes the time needed for perception, taking a decision and acting. 3.1.14 visual task visual elements of the activity being

    48、undertaken Note 1 to entry: The main visual elements are the size of the structure, its luminance, its contrast against the background and its duration. 3.1.15 visual acuity visual resolution any of a number of measures of spatial discrimination such as the reciprocal of the value of the angular sep

    49、aration in minutes of arc of two neighbouring objects (points or lines or other specified stimuli) which the observer can just perceive to be separate SOURCE: IEC 60050-845:1987 845-02-43 / CIE S 017/E:2011; 17-1403, modified - qualitative definition detached, see 3.1.3 BS EN 12665:2018EN 12665:2018 (E) 8 3.1.16 contrast quantity intended to correlate with the perceived brightness contrast, usually defined by one of a number of formulae that involve the luminances of the stimuli considered EXAMPLE By the proport


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