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    BS EN 1838 1999 BS 5266-7-1999 Lighting applications-Emergency Lighting.pdf

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    BS EN 1838 1999 BS 5266-7-1999 Lighting applications-Emergency Lighting.pdf

    1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1838:1999 BS 5266-7:1999 The European

    2、 Standard EN 1838:1999 has the status of a British Standard ICS 91.160.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Lighting applications Emergency lighting Licensed copy:RMJM, 29/08/2005, Uncontrolled Copy, BSIThis British Standard, having been prepared under the direct

    3、ion of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 October 1999 BSI 10-1999 ISBN 0 580 32992 5 BS EN 1838:1999 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard is the

    4、 English language version of EN 1838:1999. Together with BS 5266-1:1999, it supersedes BS 5266-1:1988 which is withdrawn. This standard gives details of the UK A deviations in annex B and should be read in conjunction with BS 5266-1:1999. The UK participation in its preparation was entrusted to Tech

    5、nical Committee CPL/34/9, Emergency lighting, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Europ

    6、ean developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standa

    7、rds Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible fo

    8、r their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this docum

    9、ent indicates when the document was last issued. Licensed copy:RMJM, 29/08/2005, Uncontrolled Copy, BSICEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of explo

    10、itation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1838:1999 E EUROPEAN STANDARD EN 1838 NORME EUROPE ENNE EUROPA ISCHE NORM April 1999 ICS 91.160.10 English version Lighting applications Emergency lighting Eclairagisme Eclairage de secours Angewandte Licht

    11、technik Notbeleuchtung This European Standard was approved by CEN on 22 March 1999. 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 an

    12、d bibliographical references concerning such national standards may be obtained on application to the Central Secretariat 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 responsibi

    13、lity of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherla

    14、nds, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed copy:RMJM, 29/08/2005, Uncontrolled Copy, BSIPage 2 EN 1838:1999 BSI 10-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 169, Light and lighting, the Secretariat of which is held by DIN

    15、. 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 October 1999, and conflicting national standards shall be withdrawn at the latest by October 1999. According to the CEN/CENELEC Internal Regulatio

    16、ns, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the Unite

    17、d Kingdom. It is intended to replace in part national standards relating to emergency lighting luminous requirements. It should be read in conjunction with the standards being produced by CEN/TC 169 WG7, Measurement and presentation of photometric data, and in conjunction with prEN 50172 Emergency e

    18、scape lighting systems. Users of this EN, prepared in the field of application of Article 118 A of the EC Treaty, should be aware that standards have no formal legal relationship with Directives which may have been made under Article 118 A of the Treaty. In addition, national legislation in the Memb

    19、er states may contain more stringent requirements than the minimum requirements of a Directive based on Article 118 A. Information on the relationship between the national legislation implementing Directives based on Article 118 A and this EN may be given in a national foreword of the national stand

    20、ard implementing this EN. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Normative references 3 3 Definitions 4 4 Emergency escape lighting 4 4.1 General 4 4.2 Escape route lighting 4 4.3 Open area (anti-panic) lighting 5 4.4 High risk task area lighting 6 4.5 Standby lighting 6 5 Safety signs

    21、6 Annex A (normative) Luminance and illuminance measurements 7 Annex B (informative) Countries requiring different light levels 8 Annex C (informative) Bibliography 9 Licensed copy:RMJM, 29/08/2005, Uncontrolled Copy, BSIPage 3 EN 1838:1999 BSI 10-1999 Figure 1 Specific forms of emergency lighting I

    22、ntroduction Emergency lighting is provided for use when the supply to the normal lighting fails and is therefore powered from a source independent of that supplying the normal lighting. For the purposes of this standard emergency lighting is regarded as a generic term of which there are a number of

    23、specific forms, as shown in Figure 1. The requirements given in this standard are a minimum for design purposes and are calculated for the full rated duration period and end of design life of the equipment; the contribution to illumination by reflected light is ignored. The overall objective of emer

    24、gency escape lighting is to enable safe exit from a location in the event of failure of the normal supply. The objective of escape route lighting is to enable the safe exit from a location for occupants by providing appropriate visual conditions and direction finding on escape routes and in special

    25、locations, and to ensure that fire fighting and safety equipment can be readily located and used. The objective of open area (anti-panic) lighting is to reduce the likelihood of panic and to enable safe movement of occupants towards escape routes by providing appropriate visual conditions and direct

    26、ion finding. The flow of light for escape routes or open areas should be downward to the working plane but illumination should also be provided to any obstruction up to 2 m height above that plane. The objective of high risk task area lighting is to contribute to the safety of people involved in a p

    27、otentially dangerous process or situation and to enable proper shut down procedures to be carried out for the safety of other occupants of the location. There are emerging techniques that when applied to escape routes in addition to conventional emergency lighting luminaires can enhance their effect

    28、iveness in an emergency. These techniques are not included in this standard. Vision varies from person to person, both in the amount of light required to perceive an object clearly and in the time taken to adapt to changes in the illuminance. In general, older people need more light and take a longe

    29、r time to adapt to low illuminance on a hazard or escape route. Much anxiety and confusion can be alleviated by strategically placed signs indicating the way out of a location. It is very important that exits are clearly signposted and are visible, whenever the location is occupied. 1 Scope This sta

    30、ndard specifies the luminous requirements for emergency lighting systems installed in premises or locations where such systems are required. It is principally applicable to locations where the public or workers have access. 2 Normative references This European Standard incorporates by dated or undat

    31、ed reference, provisions from other publications. These normative references are cited in the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when i

    32、ncorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 60598-2-22, Luminaires Part 2-22: Particular requirements Luminaires for emergency lighting. (IEC 60598-2-22:1997, modified) prEN 50172, Emergency escape lighting systems.

    33、 ISO 3864:1984, Safety colours and safety signs. IEC 50 Chapter 845, International Electrotechnical Vocabulary Chapter 845: Lighting. Licensed copy:RMJM, 29/08/2005, Uncontrolled Copy, BSIPage 4 EN 1838:1999 BSI 10-1999 3 Definitions For the purposes of this standard the following definitions apply:

    34、 3.1 emergency lighting lighting provided for use when the supply to the normal lighting fails IEC 50 Chapter 845 3.2 escape route a route designated for escape in the event of an emergency 3.3 emergency escape lighting that part of emergency lighting that provides illumination for the safety of peo

    35、ple leaving a location or attempting to terminate a potentially dangerous process before doing so 3.4 escape route lighting that part of emergency escape lighting provided to ensure that the means of escape can be effectively identified and safely used when the location is occupied 3.5 open area lig

    36、hting (in some countries known as anti-panic lighting) that part of emergency escape lighting provided to avoid panic and provide illumination allowing people to reach a place where an escape route can be identified 3.6 high risk task area lighting that part of emergency escape lighting that provide

    37、s illumination for the safety of people involved in a potentially dangerous process or situation and to enable proper shut down procedures for the safety of the operator and other occupants of the premises 3.7 standby lighting that part of emergency lighting provided to enable normal activities to c

    38、ontinue substantially unchanged IEC 50 Chapter 845 3.8 emergency exit a way out that is intended to be used during an emergency 3.9 safety sign a sign which gives a general safety message, obtained by a combination of colour and geometric shape and which, by the addition of a graphic symbol or text,

    39、 gives a particular safety message ISO 3864:1984 3.10 externally illuminated safety sign a sign that is illuminated, when it is required, by an external source 3.11 internally illuminated safety sign a sign that is illuminated, when it is required, by an internal source 4 Emergency escape lighting 4

    40、.1 General To provide visibility for evacuation purposes lighting is required in the volume of the space. In this standard the recommendation is fulfilled by the mounting of luminaires at least 2 m above the floor. Signs which are provided at all exits intended to be used in an emergency and along e

    41、scape routes shall be illuminated to indicate unambiguously the route of escape to a point of safety. Where direct sight of an emergency exit is not possible, an illuminated directional sign (or series of signs) shall be provided to assist progression towards the emergency exit. An escape lighting l

    42、uminaire complying with EN 60598-2-22 shall be sited to provide appropriate illuminance near each exit door and at positions where it is necessary to emphasize potential danger or safety equipment. The positions to be emphasized shall include the following: a) at each exit door intended to be used i

    43、n an emergency; b) near (see note) stairs so that each flight of stairs receives direct light; c) near (see note) any other change in level; d) mandatory emergency exits and safety signs; e) at each change of direction; f) at each intersection of corridors; g) outside and near to each final exit; h)

    44、 near (see note) each first aid post; i) near (see note) each piece of fire fighting equipment and call point. Positions denoted as h) or i) if not on the escape route nor in an open area shall be illuminated to 5 lx minimum on the floor. NOTE.T 20For the purposes of this clause, “near” is normally

    45、considered to be within 2 m measured horizontally. 4.2 Escape route lighting 4.2.1 For escape routes up to 2 m in width, the horizontal illuminances on the floor along the centre line of an escape route shall be not less than 1 lx and the central band consisting of not less than half of the width of

    46、 the route shall be illuminated to a minimum of 50 % of that value. NOTE.T 181 Wider escape routes can be treated as a number of 2 m wide strips or be provided with open area (anti-panic) lighting. NOTE.T 182 Countries requiring different lighting levels are given in annex B. Licensed copy:RMJM, 29/

    47、08/2005, Uncontrolled Copy, BSIPage 5 EN 1838:1999 BSI 10-1999 Table 1 Disability glare limits Mounting height above floor level h Escape route and open area (anti-panic) lighting maximum luminous intensity I max High risk task area lighting maximum luminous intensity I max mc dc d h 2,5 500 1 000 2

    48、,5# h 3,0 900 1 800 3,0# h 3,5 1 600 3 200 3,5# h 4,0 2 500 5 000 4,0# h 4,5 3 500 7 000 h$ 4,5 5 000 10 000 4.2.2 The ratio of the maximum to the minimum illuminance shall not be greater than 40:1 along the centre line of the escape route. 4.2.3 Disability glare shall be kept low by limiting the lu

    49、minous intensity of the luminaires within the field of view. For level horizontal escape routes the luminous intensity of the luminaires shall not exceed the values in Table 1 within the zone 608 to 908 from the downward vertical at all angles of azimuth (see Figure 2). For all other escape routes and areas, the limiting values shall not be exceeded at all angles (see Figure 3). NOTE High contrast between a luminaire and its background can produce glare. In escape route lighting the main problem will be disability glare, in


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