1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS 5266-6:1999 ICS 91.160
2、.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Emergency lighting Part 6: Code of practice for non-electrical low mounted way guidance systems for emergency use Photoluminescent systemsThis British Standard, having been prepared under the direction of the Electrotechnical
3、 Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 October 1999 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference CPL/34/9 Draft for comment 94/209174 DC ISBN 0 580 33034 6 BS 5266-6:1999 Amendme
4、nts issued since publication Amd. No. Date Comments Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee CPL/34/9, Emergency lighting, upon which the following bodies were represented: Association of British Theatre Technician
5、s Association of Building Engineers Association of County Councils Association of Manufacturers of Power Generating Systems British Cable Makers Confederation British Fire Consortium Chartered Institution of Building Services Engineers Chief and Assistant Chief Fire Officers Association Cinema Exhib
6、itors Association Department of the Environment, Transport and the Regions Department of Trade and Industry Consumer Safety Unit, CA Division District Surveyors Association Electrical Contractors Association Electricity Association Engineering Industries Association GAMBICA (BEAMA Ltd.) Home Office
7、Industry Committee for Emergency Lighting Ltd. (ICEL) Institute of Fire Prevention Officers Institute of Fire Safety Institution of Electrical Engineers Institution of Lighting Engineers Lighting Industry Federation Ltd. London Transport National Illumination Committee of Great Britain National Insp
8、ection Council for Electrical Installation Contracting Photoluminescent Safety Products Association Tenpin Bowling Proprietors AssociationBS 5266-6:1999 BSI 10-1999 i Contents Page Committees responsible Inside front cover Foreword ii Introduction 1 1 Scope 1 2 Normative references 1 3 Definitions 1
9、 4 Planning 2 5 Components 2 6 Design 2 7 Installation 4 8 Commissioning and documentation 4 9 Servicing and maintenance 4 Annex A (informative) Application factors 5 Annex B (normative) Measurement of the luminous performance of the photoluminescent system 5 Bibliography 6 Figure 1 Inter-relationsh
10、ips of specific forms of emergency lighting 3 Table 1 Minimum installed luminance characteristics during light decay 4ii BSI 10-1999 BS 5266-6:1999 Foreword This part of BS 5266 has been prepared by Technical Committee CPL/34/9, Emergency Lighting. This standard is supplementary to, and is intended
11、to be used as an addition to, BS 5266-1. The aim of this standard is to promote wider understanding of non-electrical low mounted way guidance systems, to encourage uniformity of application and to give advice on their most effective use within buildings. Owing to the developing nature of the techno
12、logy, a review of this part of BS 5266 will commence three years after the date of publication, as opposed to the usual five early review period. Annex A is informative. Annex B is normative. As a code of practice, this British Standard takes the form of guidance and recommendations. It should not b
13、e quoted as if it were a specification and particular care should be taken to ensure that claims of compliance are not misleading. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Comp
14、liance 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, pages i and ii, pages 1 to 6, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates
15、when the document was last issued. BSI 10-1999 1 BS 5266-6:1999 Introduction Photoluminescent way guidance systems use lines of light emitting visual markers to assist in indicating the location of escape routes and exits. Photoluminescent materials and products need sufficient pre-excitation by nor
16、mal lighting. On failure of the normal lighting supply, the photoluminescent system emits the stored energy over a period of time with diminishing luminance. The photoluminescent components remain visible during the period of light decay when the lighting fails. 1 Scope This part of BS 5266 gives re
17、commendations for the planning, design, installation and servicing of photoluminescent low mounted way guidance systems, for use within emergency lighting systems. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions
18、 of this part of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latest edition of the publication referred to applies. BS 5266-1:1988, Emergency lighting Code of practice for the emergency li
19、ghting of premises other than cinemas and certain other specified premises used for entertainment. BS EN 60529:1992, Specification for degrees of protection provided by enclosures (IP code). BS EN 60598-1:1997, Luminaires Part 1: General requirements and tests. IEC 60598-2-22:1997, Luminaires Partic
20、ular requirements Luminaires for emergency lighting. IEC 60092-101, Electrical installations in ships Part 101: Definitions and general requirements. 3 Definitions For the purposes of this standard the definitions given in BS 5266-1 apply, together with the following. 3.1 non-electrical low mounted
21、way guidance system low mounted luminous tracks positioned on escape routes in combination with exit indicators, exit marking and intermediate direction indicators along the route, provided for use when the supply to the normal lighting fails, which do not rely on an electrical supply for their lumi
22、nous output 3.2 photoluminescent system non-electrical low mounted way guidance system incorporating photoluminescent pigments that, if excited by UV or visible radiation, store energy which is emitted as light over a period of time with diminishing luminance 3.3 photoluminescent escape route marker
23、 marker forming part of the way guidance system, readily visible in low ambient light NOTE Lines of these markers are provided to clearly delineate an escape route or define an escape path through an open area. 3.4 exit indicator illuminated indicator forming part of the way guidance system, provide
24、d to clearly identify an exit NOTE It may be used with or without a supplementary sign mounted adjacent to the exit at low level for use when any overhead safety sign may be less effective or obscured. 3.5 exit marking that part of the way guidance system provided to clearly identify an exit by usin
25、g the luminous marking to outline part or all of the exit surround 3.6 intermediate information and exit direction indicators that part of the way guidance system provided to identify exit routes and to clearly indicate direction towards an exit 3.7 excitation process by which UV or visible radiatio
26、n provokes the phosphorescent ability of a product 3.8 excitation lighting lighting sufficient to produce the necessary excitation for a particular application 3.9 light decay time dependent decrease of luminance after the end of excitation 3.10 period of light decay period after the end of excitati
27、on in which the luminance decreases to 0.3 mcd/m 22 BSI 10-1999 BS 5266-6:1999 4 Planning 4.1 Consultation The consultation recommendation given in BS 5266-1:1988, 3.1 and the recommendations for the provision of plans given in BS 5266-1:1988, 3.2 should be followed. In addition, the level of integr
28、ation between photoluminescent low mounted way guidance, overhead normal lighting providing excitation, and illumination of signs should be considered. The type of light sources should be noted and site illuminance measurements should be conducted. For new installations, the supplier/provider of the
29、 photoluminescent products should specify the lighting criteria of daylight and artificial light required to excite the product. 4.2 Selection of escape route Photoluminescent low mounted way guidance relies for its effectiveness on a line of visible markers along the escape route. It is therefore i
30、mportant that the following are identified on the plans: a) all routes suitable for use in an emergency; b) all exits on escape routes, such as intermediate doors, storey exits and final exits; c) all doors situated within the escape route and which do not form part of the means of escape; d) any ro
31、ute which crosses an open area and an appropriate form of marking for that route; e) location of normal lighting luminaires, the type of light source and luminaire cover, and predicted illuminances at placement positions for photoluminescent components. 4.3 Modes of operation It is essential that th
32、e photoluminescent way guidance system should either be continuously excited by normal lighting or be sufficiently illuminated at all material times needed to produce the required luminance. 5 Components Components fixed on the surface of an escape route should not have a significant effect on the c
33、ombustibility or surface spread of flame characteristics of the surface. Photoluminescent components should either conform to the requirements of the 8508C glow wire test as given in IEC 60598-2-22 or the appropriate flame spread requirements given in IEC 60092-101. Components may be adversely affec
34、ted by excessive exposure to UV. Manufacturers should supply documentation on the protection against UV built into their product and agree with the customer on the suitability of the performance of the product for the expected environmental conditions. As components are mounted in exposed positions
35、on or close to the floor they should have: a) a minimum degree of ingress protection of IP54 (dust proof/splash proof) in accordance with BS EN 60529:1992; b) adequate mechanical strength. The component should conform to the category of impact energy for road and street lighting luminaires as given
36、in BS EN 60598-1:1997, Table 4.3 by showing no visible cracking of the material when tested in accordance with that standard; c) adequate methods of fixing to the mounting surface, following the manufacturers instructions. 6 Design 6.1 General Photoluminescent low mounted way guidance systems are in
37、tended to complement emergency escape lighting systems. Guidance on the use and suitability of a photoluminescent low mounted way guidance system should be sought from the relevant enforcing authority and can be obtained by the appraisal of the system against an appropriate risk assessed safety prog
38、ramme. The inter-relationships of specific forms of emergency lighting are illustrated in Figure 1. A low mounted way guidance system should be designed to ensure that the escape route is clearly marked with a visible “line of light” (see 6.3). The escape route corridors should be indicated by a lin
39、e of markers on both sides of the escape route. When the escape route crosses an open area, the location of the route should be indicated by two parallel lines of route markers. With the exception of stairs, it is essential that the lines of markers do not cross the route which is to be used in an e
40、mergency and do not cross the threshold of an exit. An exits use should be identified by indicators or markers. This should be achieved by extending the escape route markers up to door handle height adjacent to the exit or to completely outline the surround of the exit. For doors which are not used
41、as part of the escape route (e.g. cupboard doors), the visual line of the wall mounted marker system should be continued by introducing a floor mounted marker system past the doorway. A photoluminescent indicator should be mounted at a level no higher than 1 m above the floor adjacent to any exit. I
42、n all cases the indicator should be sited in such a position that it can be seen from the approach side of the exit. NOTE All exit signs provided in a premises to which the Health and Safety (Safety signs and signals) Regulations 1996 1 apply are subject to those regulations. BSI 10-1999 3 BS 5266-6
43、:1999 Figure 1 Inter-relationships of specific forms of emergency lighting Breaks may be necessary in the marker system when the escape route passes openings or intersecting corridors. Where such situations occur, breaks of up to 2 m in the marker system are acceptable. Changes in level should be de
44、lineated by wall mounted components indicating the pitchline of a flight of stairs or contour of each tread of a flight of stairs, single steps and ramps. The beginning, passage and end of the change of level needs to be clearly marked. Escape route marker systems incorporated into stair treads shou
45、ld be visible when either ascending or descending the stairs. Marking on the guarding or handrail can provide an additional orientation aid. Additional application factors which may need to be considered are given in annex A. 6.2 Mounting Wall mounted marker systems should normally be mounted no hig
46、her than 300 mm above floor level. Floor mounted marker systems should normally be mounted within 150 mm of the side of the escape route. 6.3 Gaps Luminous elements within the lines of the marker system should be as continuous as possible. Any gaps between luminous elements within the marker system
47、should be 300 mm or less. 6.4 Colour The marker light source should be predominantly either white or green. 6.5 Luminance performance Following excitation by the normal installed lighting for 15 min, the luminance performance of the product should be not less than the minimum installed luminance cha
48、racteristics given in Table 1.4 BSI 10-1999 BS 5266-6:1999 Table 1 Minimum installed luminance characteristics during light decay At 1 min At 10 min At 30 min At 60 min At 150 min mcd/m 2 mcd/m 2 mcd/m 2 mcd/m 2 mcd/m 2 60 11.5 2.5 1.1 0.3 NOTE For convenience, luminance should be measured using a p
49、hotopic correction function. 6.6 Width of luminous elements For wall, stair tread and pitchline marker systems, the width of the luminous elements should be at least 75 mm. For stair nosing markings, the width of the luminous elements should be at least 15 mm. For marking of the exit door or exit surround, the width of the luminous elements should be at least 50 mm. 6.7 Installed artificial lighting The installed artificial lighting should provide not less than the minimum excitation illumination necessary for all parts of the photoluminescent system to
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