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1、BRITISH STANDARD BS 873-5: 1983 Road traffic signs and internally illuminated bollards Part 5: Specification for internally illuminated signs and external lighting luminaires UDC 625.745.5/.6:628.975:656.055.969 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 06
2、:09:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-5:1983 This British Standard, having been prepared under the direction of the Road Engineering Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 January 1983 BSI 02-1999 The following BSI re
3、ferences relate to the work on this standard: Committee reference RDB/6 Draft for comment 78/14585 DC ISBN 0 580 13050 9 Cooperating organizations The Road Engineering Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: Aspha
4、lt and Coated Macadam AssociationGreater London Council Association of Consulting EngineersInstitute of Petroleum British Quarrying and Slag Federation*Institute of Quarrying British Tar Industry AssociationInstitution of Civil Engineers* Cement and Concrete AssociationInstitution of Highway Enginee
5、rs* Concrete Society LimitedInstitution of Municipal Engineers* Contractors Plant AssociationInstitution of Structural Engineers Convention of Scottish Local AuthoritiesMinistry of Defence County Surveyors Society*Refined Bitumen Association Ltd. Department of the Environment (PSA)Road Emulsion Asso
6、ciation Ltd. Department of the Environment (Transport Road Surface Dressing Association and Road Research Laboratory)Sand and Gravel Association Limited Department of Transport*Society of Chemical Industry Federation of Civil Engineering ContractorsTrades Union Congress Federation of Manufacturers o
7、f Construction Equipment and Cranes The organizations marked with an asterisk in the above list, together with the following, were directly represented on the Technical Committee entrusted with the preparation of this British Standard: Aluminium FederationElectricity Supply Industry in England and A
8、ssociation of Public Lighting EngineersWales Association of Road Traffic Sign MakersFibre Building Board Development British Electrical and Allied ManufacturersOrganization Ltd. Association (BEAMA)Lighting Industry Federation Ltd. British Plastics FederationPaint Research Association British Precast
9、 Concrete Federation Ltd.Post Office British Rubber Manufacturers AssociationRetroreflective Equipment Manufacturers British Sign AssociationAssociation British Steel IndustryVitreous Enamel Development Council Chartered Institution of Building ServicesCoopted members Confederation of British Road P
10、assenger Transport Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 06:09:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-5:1983 BSI 02-1999i Contents Page Cooperating organizations Inside fro
11、nt cover Foreword ii 1Scope1 2Definitions1 3Marking and information1 4Materials1 5Mechanical properties and construction2 6Appearance3 7Electrical properties3 8Luminance4 Figure 1 Positions of inner and outer areas6 Table 1 Luminance ratios5 Publications referred to Inside back cover Licensed Copy:
12、London South Bank University, London South Bank University, Fri Dec 08 06:09:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-5:1983 ii BSI 02-1999 Foreword This Part of this British Standard has been prepared under the direction of the Road Engineering Standards Committee. BS 873 was first publ
13、ished in 1939 in response to a request from the Association of Road Traffic Sign Makers, and was revised in 1959 and 1970. As a result of subsequent experience and the advent of new materials and methods of construction, it is being further revised to bring it up-to-date. This process will continue
14、in future revisions. The revised standard is being published in the following separate Parts, relating to the various aspects of road traffic signs and internally illuminated bollards which are considered to be suitable for standardization. Part 1: Methods of test; Part 2: Specification for miscella
15、neous traffic signs; Part 3: Specification for internally illuminated bollards; Part 4: Specification for road studs; Part 5: Specification for internally illuminated signs and external lighting luminaires; Part 6: Specification for retroreflective and non-retroreflective signs; Part 7: Specificatio
16、n for posts and fittings. NOTEBS 873-1 gives further details of the various Parts. Internally illuminated traffic signs generally take the form of an enclosure, housing the light sources and faced with a sheet of light-transmitting material on which is set the information in the form of a legend or
17、symbol. Some signs have more than one illuminated face. External lighting luminaires may be used where signs are not internally illuminated. The committee reconsidered the need for requirements for resistance to abrasion and concluded that, while perhaps desirable, it was not practicable to establis
18、h suitable conditions of test bearing in mind the wide variety of finishes available within the specification. Experience had indicated there was no need for signs of greater strength and no fundamental changes were thought necessary as regards thickness of sheet sign plate materials. Some of the te
19、sts specified in this standard are such as to necessitate a programme of sampling. Such a procedure should be agreed between the purchaser and manufacturer at the time of ordering. Attention is drawn to BS 2635, BS 6000, BS 6001 and BS 6002. A British Standard does not purport to include all the nec
20、essary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. In particular, attention is drawn to the following: The Traffic Signs Regulations and General Direc
21、tions The Traffic Signs (Speed Limits) Regulations and General Directions The Pedestrian Crossing Regulations Information on the relationship between these Regulations and BS 873 is given in Appendix A of BS 873-1:1983. Summary of pages This document comprises a front cover, an inside cover, pages i
22、 and ii, pages 1 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank Universi
23、ty, Fri Dec 08 06:09:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-5:1983 BSI 02-19991 1 Scope This Part of BS 873 specifies the requirements for illuminated road traffic signs including internally illuminated signs and external lighting luminaires. The materials, construction, light sources
24、and electrical requirements are given for internally illuminated signs and for external lighting luminaires. Mean luminance and uniformity of luminance on the sign face are specified. While this standard specifies requirements for resistance to twisting of the mounting arrangements between the sign
25、and its support, it does not specify the requirements for such supports. When these take the form of posts, the requirements of BS 873-7 apply. NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS 873 t
26、he definitions in BS 873-1 apply. 3 Marking and information 3.1 Complete signs 3.1.1 Marking. The internally illuminated signs and external lighting luminaires shall be clearly and durably marked with the following information: a) the number of this British Standard, i.e. BS 873-51); b) the name, tr
27、ade mark or other means of identification of the manufacturer or vendor; c) the relevant marking specified in BS 4533-2.5; d) the month and year of assembly. The marking in a) and b) shall be marked on the outside of the housings of internally illuminated signs and external lighting luminaires in le
28、gible characters and such that the total area of the marking does not exceed 30 cm2. The external marking shall be sufficiently durable to last the expected life of the sign or luminaire to which it is applied. 3.1.2 Information. The manufacturer or vendor shall make available the following informat
29、ion: a) instructions on the assembly and erection of the sign; b) details of any limitations in location or usage; c) instructions on the operation and maintenance of the sign. 3.2 Components of signs 3.2.1 Marking. Where the component complies with a British Standard the marking shall be that speci
30、fied in that standard. 3.2.2 Information. The manufacturer or vendor shall make available the following information: a) where the component is not covered by and/or does not comply with a British Standard, a detailed technical specification of the component; b) instructions on the application of the
31、 component; c) details of any limitations in location or usage, including any potential incompatibility with other materials; d) instructions on the operation and maintenance of the component; e) for external lighting luminaires, data showing the luminance in cd/m2 of a white sign face of a stated a
32、rea when lit by the luminaire, positioned at its specified mounting angle and distance from the face, when tested by the method described in clause 4 of BS 873-1:1983. With the exception of the edge of the face that includes the luminaire, the boundaries of the stated area shall include the luminanc
33、e contour defining 5 % of the maximum luminance. 4 Materials 4.1 General. Materials and finishes shall be compatible so as to avoid failure or deterioration due to electrolytic action or by differential thermal expansion. NOTESee BS 5493 and PD 6484 for further information. Metals shall be finished
34、in accordance with BS 873-6. 4.2 Housings 4.2.1 General. Housings for internally illuminated signs and external lighting luminaires shall be constructed from one or more of the following: a) galvanized sheet steel complying with BS 2989; b) lead-coated sheet steel; c) stainless steel, of austenitic
35、grade complying with BS 1449-2; d) iron castings complying with BS 1452; e) aluminium castings complying with grades LM6-M, LM25-M or LM27-M of BS 1490; 1) Marking BS 873-5 on or in relation to a product is a claim by the manufacturer that the product has been manufactured to the requirements of the
36、 standard. The accuracy of such a claim is therefore solely the manufacturers responsibility. Enquiries as to the availability of third party certification to support such claims should be addressed to the Director, Quality Assurance Division, British Standards Institution, Maylands Avenue, Hemel He
37、mpstead, Herts HP2 4SQ for certification marks administered by BSI or to the appropriate authority for other certification marks. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 06:09:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 873-5:1983 2 BSI 02-1999 f) s
38、heet aluminium complying with grades S1C, NS3, NS4 or HS30 of BS 1470; g) extruded aluminium complying with grade 6063TE (or stronger) of BS 1474; h) copper and copper alloys complying with BS 1400, BS 2870 or BS 4608 as appropriate; j) plastics or reinforced plastics complying with 4.2.2. 4.2.2 Pla
39、stics 4.2.2.1 When tested under conditions of either: a) continuous natural exposure for 2 years; or b) accelerated weathering for 1 200 h; using the procedure described in clause 15 of BS 873-1:1983, samples of the plastics or reinforced plastics material shall show no sign of deterioration such as
40、 cracking, scaling, pitting, blistering, delamination, distortion, staining or chalking. Where specified, the colours of the samples shall remain within the limits of Table 4 of BS 873-6:1983. 4.2.2.2 When subjected to the action of a saline mist as described in clause 13 of BS 873-1:1983 there shal
41、l be no sign of deterioration, corrosion or evidence of colour change. 4.2.2.3 When subjected to the action of sulphur dioxide as described in clause 14 of BS 873-1:1983 there shall be no sign of deterioration, corrosion or evidence of colour change. 4.3 Sign panels and luminaire face panels 4.3.1 R
42、esistance to corrosion and weathering. Sign panels complete with legend and luminaire face panels shall comply with the requirements of 4.2.2. 4.3.2 Bond between sign face sheet material and the sign panel or luminaire face panel. Where legends are laminated to a sign panel or luminaire face panel t
43、he adhesion shall be determined as described in clause 10 of BS 873-1:1983. When tested by this method the force required to produce failure shall be not less than 440 N. 4.3.3 Colour. The colours of the sign face shall comply with BS 873-6. 4.3.4 Impact resistance. The materials used for the sign p
44、anels and luminaire face panels shall be tested as described in clause 7 of BS 873-1:1983 and categorized in relation to impact strength as follows. Impact category 1. Materials that are not penetrated by the steel ball and where any damage that occurs is confined to within a circle of 15 mm radius
45、around the point of impact of the steel ball. Impact category 2. All other materials. NOTEImpact category 2 materials are not considered to be suitable where vandal resistance is required. 4.4 Constructional components. When components for internal use are manufactured from low carbon steel they sha
46、ll be made from the following materials: for sheet and strip BS 1449-1 Grade CR4 for bar BS 970-1 Grade 220 M07 Components made from such material shall be electroplated to comply with classification no. Zn3 or Cd3 of BS 1706 or service condition No. 2 of BS 1224. Components electroplated with zinc
47、or cadmium shall also be passivated. Components manufactured from steels with tensile strengths of 1 000 N/mm2 or more shall be heat treated to relieve hydrogen embrittlement as described in BS 1706. Steel components, other than fixing devices such as screws, etc., for external use shall be construc
48、ted either of stainless steel, austenitic grade complying with BS 1449-2 or of low carbon steel complying with BS 970-1 and galvanized in accordance with BS 2989 or BS 729. Washers shall be of material that will prevent nuts and screw heads from damaging surfaces, but not of material that will shrin
49、k and leave the screws and nuts insecure. Nuts shall either be provided with locking washers or be of the self-locking type. Gaskets shall be positively retained in their seating and shall not work loose during maintenance. Materials used in gaskets shall prevent the ingress of moisture and shall not deteriorate unduly in use due to heat, light or compression to which they are subjected in practice. Felt gaskets shall be tropicalized. NOTETropicalization involves the protection of the material against extreme climatic conditions, particularly high humidity (se
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