1、BSI Standards PublicationBS EN 12464-2:2014Light and lighting Lighting of work placesPart 2: Outdoor work placesCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN
2、12464-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12464-2:2014. It supersedes BS EN 12464-2:2007 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EL/1, Light and lighting applications.A list of organizati
3、ons represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN
4、 978 0 580 82655 9ICS 91.160.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e
5、 c t e dCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12464-2:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12464-2 January 2014 ICS 91.160.20 Supe
6、rsedes EN 12464-2:2007English Version Light and lighting - Lighting of work places - Part 2: Outdoor work places Lumire et clairage - clairage des lieux de travail - Partie 2: Lieux de travail extrieurs Licht und Beleuchtung - Beleuchtung von Arbeitssttten - Teil 2: Arbeitspltze im Freien This Europ
7、ean Standard was approved by CEN on 7 December 2013. 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 bibliographical references co
8、ncerning 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 of a CEN member
9、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 Macedonia, France
10、, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMI
11、TEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12464-2:2014 ECopyright British Standards Institution Provided by IHS under license with BSI - Unc
12、ontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12464-2:2014EN 12464-2:2014 (E) 2 Contents Page Foreword 3 Introduction . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Lighting design criteria . 5 4.1 Luminous environment .
13、 5 4.2 Luminance distribution . 6 4.3 Illuminance . 6 4.3.1 General 6 4.3.2 Illuminance on the task area . 6 4.3.3 Illuminance of surroundings 7 4.3.4 Illuminance grid . 8 4.3.5 Uniformity and diversity 8 4.4 Glare 9 4.4.1 General 9 4.4.2 Glare rating . 9 4.4.3 Veiling reflections and reflected glar
14、e . 10 4.5 Obtrusive light 10 4.6 Directional lighting 11 4.6.1 General 11 4.6.2 Modelling 11 4.6.3 Directional lighting of visual tasks 11 4.7 Colour aspects . 11 4.7.1 General 11 4.7.2 Colour appearance 12 4.7.3 Colour rendering 12 4.8 Flicker and stroboscopic effects 12 4.9 Maintenance factor (MF
15、) . 12 4.10 Energy considerations 13 4.11 Sustainability 13 5 Schedule of lighting requirements . 13 5.1 General 13 5.2 Composition of the Tables 5.1 to 5.15 below 14 5.3 The schedule of areas, tasks and activities 14 5.4 Lighting requirements for areas, tasks and activities . 15 6 Verification proc
16、edures . 21 6.1 General 21 6.2 Illuminance . 21 6.3 Glare Rating 21 6.4 Colour Rendering Index and colour appearance . 21 6.5 Obtrusive light 21 6.6 Maintenance schedule 21 Annex A (informative) Adeviations 22 Bibliography 23 Index of areas, tasks and activities . 24 Copyright British Standards Inst
17、itution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12464-2:2014EN 12464-2:2014 (E) 3 Foreword This document (EN 12464-2:2014) has been prepared by Technical Committee CEN/TC 169 “Light and lighti
18、ng”, 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 July 2014, and conflicting national standards shall be withdrawn at the latest by July 2014. Attention
19、 is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12464-2:2007. Significant changes between this document and EN 1246
20、4-2:2007 are: a) the terms and definitions were deleted to avoid duplication with EN 12665; b) symbols were aligned with EN 12665; c) Figure 1 was corrected; d) 4.4.2 “Glare rating”, the reflectance has a default value of = 0,15; e) 4.7.3 “colour rendering”, aligned with EN 12464-1; f) 4.10 “energy
21、considerations”, aligned with EN 12464-1 and extended; g) subclause 5.1, insertion of requirements regarding routine cleaning of work spaces; h) Table 5.1 “General requirements for areas and for cleaning at outdoor work places”, title changed and new activity added; i) Table 5.12 “Railways and tramw
22、ays”, updated and extended; j) Clause 6 “Verification procedures”, revised and harmonized with EN 12464-1. EN 12464, Light and lighting - Lighting of work places consists of the following parts: Part 1: Indoor work places Part 2: Outdoor work places According to the CEN-CENELEC Internal Regulations,
23、 the national standards organizations of the following countries 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, La
24、tvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or netwo
25、rking permitted without license from IHS-,-,-BS EN 12464-2:2014EN 12464-2:2014 (E) 4 Introduction To enable people to perform outdoor visual tasks efficiently and accurately, especially during the night, adequate and appropriate lighting should be provided. The degree of visibility and comfort requi
26、red in a wide range of outdoor work places is governed by the type and duration of activity. This standard specifies requirements for lighting of tasks in most outdoor work places and their associated areas in terms of quantity and quality of illumination. In addition recommendations are given for g
27、ood lighting practice. It is important that all clauses of the standard are followed although the specific requirements are tabulated in the schedule of lighting requirements (see Clause 5). Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for Re
28、saleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12464-2:2014EN 12464-2:2014 (E) 5 1 Scope This European Standard specifies lighting requirements for outdoor work places, which meet the needs for visual comfort and performance. All usual visual tasks are considered. Thi
29、s European Standard is not applicable for emergency lighting; see EN 1838 and EN 13032-3. This European Standard does not specify lighting requirements with respect to the safety and health of workers at work and has not been prepared in the field of application of Article 153 of the EC treaty, alth
30、ough the lighting requirements, as specified in this standard, usually fulfil safety needs. Lighting requirements with respect to the safety and health of workers at work may be contained in Directives based on Article 153 of the EC treaty, in national legislation of member states implementing these
31、 directives or in other national legislation of member states. This European Standard neither provides specific solutions, nor restricts the designers freedom from exploring new techniques nor restricts the use of innovative equipment. 2 Normative references The following documents, in whole or in p
32、art, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12665:2011, Light and lighting - Basic terms
33、and criteria for specifying lighting requirements EN 13201-2, Road lighting - Part 2: Performance requirements EN 13201-3, Road lighting - Part 3: Calculation of performance ISO 3864-1, Graphical symbols - Safety colours and safety signs - Part 1: Design principles for safety signs and safety markin
34、gs 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12665:2011 apply. 4 Lighting design criteria 4.1 Luminous environment For good lighting practice it is essential that, in addition to the required illuminance, other qualitative and quantitative needs
35、 are satisfied. Lighting requirements are determined by the satisfaction of three basic human needs: visual comfort, where the workers have a feeling of well-being; in an indirect way also contributing to a high productivity level, visual performance, where the workers are able to perform their visu
36、al tasks, even under difficult circumstances and during longer periods, safety. Main parameters determining the luminous environment are: luminance distribution, Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networ
37、king permitted without license from IHS-,-,-BS EN 12464-2:2014EN 12464-2:2014 (E) 6 illuminance, glare, directionality of light, colour rendering and colour appearance of the light, flicker. Values for illuminance and its uniformity, discomfort glare and colour rendering index are given in Clause 5;
38、 other parameters are described in Clause 4. NOTE Intentionally improved and designed luminous environment, glare-free illumination, good colour rendering, high contrast markings and optical and tactile guiding systems can improve visibility and sense of direction and locality. See CIE 196:2011. In
39、addition to the lighting, there are other visual ergonomic parameters which influence visual performance, such as: the intrinsic task properties (size, shape, position, colour and reflectance properties of detail and background), ophthalmic capacity of the person (visual acuity, depth perception, co
40、lour perception), Attention to these factors can enhance visual performance without the need for higher illuminance. 4.2 Luminance distribution The luminance distribution in the visual field controls the adaptation level of the eyes, which affects task visibility. A well balanced luminance distribut
41、ion is needed to increase: visual acuity (sharpness of vision), contrast sensitivity (discrimination of small relative luminance differences), efficiency of the ocular functions (such as accommodation, convergence, pupillary contraction, eye movements). The luminance distribution in the visual field
42、 also affects visual comfort. Sudden changes in luminance should be avoided. 4.3 Illuminance 4.3.1 General The illuminance and its distribution on the task area and the surrounding area have a great impact on how quickly, safely and comfortably a person perceives and carries out the visual task. All
43、 values of illuminances specified in this standard are maintained illuminances and will provide for visual comfort, visual performance and safety needs. All illuminance average and uniformity values are dependent upon the grid definition (see 4.3.4). 4.3.2 Illuminance on the task area The values giv
44、en in Clause 5 are maintained illuminances over the task area on the reference surface, which may be horizontal, vertical or inclined. The average illuminance for each task shall not fall below the value given in Clause 5, regardless of the age and condition of the installation. Copyright British St
45、andards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 12464-2:2014EN 12464-2:2014 (E) 7 The values are valid for normal visual conditions and take into account the following factors: psy
46、cho-physiological aspects such as visual comfort and well-being, requirements for visual tasks, visual ergonomics, practical experience, safety, economy. The value of illuminance may be adjusted by at least one step in the scale of illuminances (see below), if the visual conditions differ from the n
47、ormal assumptions. A factor of approximately 1,5 represents the smallest significant difference in subjective effect of illuminance. The recommended scale of illuminance (in lx) is: 5 10 15 20 30 50 75 100 150 200 300 500 750 1 000 1 500 2 000 The required maintained illuminance should be increased,
48、 when: visual work is critical, visual task or worker is moving, errors are costly to rectify, accuracy or higher productivity is of great importance, the visual capacity of the worker is below normal, task details are of unusually small size or low contrast, the task is undertaken for an unusually long time. The required maintained illuminance may be decreased when: task details are of an unusually large size or high contrast, the task is undertaken for an unusually short time or on only rare occasions. 4.3.3 Illuminance of surroundings The illum
