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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS 3143 : Part 2 : 1990 I
2、ncorporating Amendments Nos. 1 and 2 ICS 93.080.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Road danger lamps Part 2. Specification for low-intensity battery-operated lamps Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontrolled Copy
3、, (c) BSI BS 3143 : Part 2 : 1990Issue 2, December 1998 This British Standard, having been prepared under the direction of the Road Engineering Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 30 June 1990 BSI 1998 First published September 1
4、959 Second edition October 1973 Third edition June 1990 The following BSI references relate to the work on this standard: Committee reference RDB/24 Draft for comment 83/13409 DC ISBN 0 580 18168 5 Amendments issued since publication Amd. No.DateText affected 7882November 1993 Clause 7 9856December
5、1998 Indicated by a sideline in the margin Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Road Engineering Standards Policy Committee (RDB/-) to Technical Committee RDB/24, upon which the following bodies were represented: Battery Opera
6、ted Warning Lamp Association British Gas plc British Glass Manufacturers Confederation British Lighting Association for the Preparation of Standards (Britlaps) British Plastics Federation British Telecommunications plc County Surveyors Society Department of Transport Electricity Supply Industry in E
7、ngland and Wales Home Office Lighting Industry Federation Ltd. Royal Society for the Prevention of Accidents Coopted members Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Issue 1, December 1998BS 3143 : Part 2 : 1990 BSI 1998a Summary of p
8、ages The following table identifies the current issue of each page. Issue 1 indicates that a page has been introduced for the first time by amendment. Subsequent issue numbers indicate an updated page. Vertical sidelining on replacement pages indicates the most recent changes (amendment, addition, d
9、eletion). PageIssuePageIssue Front cover Inside front cover a b 1 2 3 4 2 2 1 blank original 2 original original 5 6 7 8 9 10 Inside back cover Back cover original 2 original original original blank original 2 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontroll
10、ed Copy, (c) BSI bblank Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3143 : Part 2 : 1990 BSI 19981 Contents Page Committees responsibleInside front cover Foreword2 Specification 1Scope3 2Definitions3 3Materials3 4Construction3 5Colori
11、metric performance6 6Photometric performance6 7Supplementary retroreflective areas6 8Marking7 Appendix AMethods of test8 Tables 1Minimum luminous intensities6 2Coefficient of retroreflection of supplementary retroreflective areas6 Figures 1Method used to determine the shape and size of the lens of a
12、 lamp4 2Apparatus for impact test9 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 BSI 1998 BS 3143 : Part 2 : 1990Issue 2, December 1998 | | | | | | Foreword This Part of BS 3143 has been prepared under the direction of the Road Engineeri
13、ng Standards Policy Committee. It is a revision of BS 3143 : Part 2 : 1973 which is superseded and withdrawn. This edition takes into account the provisions of the Traffic Signs Regulations and General Directions 1981 (SI 859), as amended, and current design practice. Users of this British Standard
14、are advised to consider the desirability of third party certification of product conformity with this British Standard based on testing and continuing surveillance, which may be coupled with assessment of a suppliers quality systems against the appropriate Part of BS 5750. Enquiries as to the availa
15、bility of third party certification schemes will be forwarded by BSI to the Association of Certification Bodies. If a third party certification scheme does not already exist, users should consider approaching an appropriate body from the list of Association members. This standard was confirmed on th
16、e publication of Amendment No. 2. The changes incorporated did not reflect a full review of the standard but were those felt necessary to maintain its currency pending its withdrawal and supersession by European Standards currently in preparation. A British Standard does not purport to include all t
17、he necessary 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. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontrolled
18、Copy, (c) BSI 3 BS 3143 : Part 2 : 1990 Specification 1 Scope This Part of BS 3143 specifies requirements for individual, battery-operated, low-intensity road danger lamps that are designed to delineate the outline of a roadworks or other obstruction. WARNING. The lamps specified in this standard ar
19、e not suitable for use in explosive atmospheres. NOTE 1. This Part of BS 3143 does not specify in detail either the power source or light source. All lamps complying with this standard should be fitted with a power and light source as recommended by the manufacturer. NOTE 2. The titles of the public
20、ations referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS 3143 the definitions in BS 5225 : Part 1 apply, together with the following. 2.1 steady burning road danger lamp A road danger lamp in which the light output is practically cons
21、tant. 2.2 ripple road danger lamp A road danger lamp in which the light output regularly pulsates at more than 900 pulses per minute. 2.3 flashing road danger lamp A road danger lamp in which the light output regularly pulsates between 120 and 150 pulses per minute. 2.4 horizontal plane The horizont
22、al plane passing midway between the top and bottom extremities of the lens of a 3608 road danger lamp. 2.5 principal axis The axis perpendicular to the principal plane of a lens passing through its geometric centre (see figure 1(b). 2.6 principal plane The vertical plane that passes through the phot
23、ometric centre of the lamp and that is parallel to the face upon which a lens is mounted (see figure 1(b). 2.7 vertical axis of symmetry The vertical axis passing through the symmetrical centre of the lens of a 3608 road danger lamp (see figure 1(a). 2.8 3608 road danger lamp A lamp that emits light
24、 in all vertical planes passing through its vertical axis of symmetry throughout an angle extending at least 58 above and below the horizontal plane. 2.9 peak intensity The maximum instantaneous intensity of a regularly pulsating road danger lamp. 2.10 duration of flash The duration of the flash is
25、the time interval measured between the flash intensity reading 50 % of its peak, both increasing and decreasing within a single flash. 3 Materials 3.1 Materials for body and lenses of the lamp The body and lenses of the lamp shall be made from material such that they shall comply with clause 4. Mate
26、rials and finishes shall be compatible so as to avoid failure or deterioration due to electrolytic action or by differential thermal expansion. Alloys containing copper shall not be used in contact with aluminium alloys. NOTE. See PD 6484 for further information. Steel components, other than those i
27、n stainless steel, shall be finished in accordance with BS 873 : Part 6. 3.2 Materials for gaskets Materials used for gaskets shall prevent the ingress of moisture and shall not deteriorate unduly in use due to heat, light or compression. Felt gaskets shall be tropicalized. NOTE. Tropicalization inv
28、olves the protection of the material against extreme climatic conditions, particularly high humidity, and against attack by fungi and insects. Any adhesive used shall be chemically compatible with all materials it comes into contact with. 4 Construction 4.1 Components of the lamp 4.1.1 Body Where ne
29、cessary the compartment housing any battery shall be treated to resist corrosive action. Any battery compartment shall be large enough to permit the removal of neglected and swollen batteries. The external surfaces of the lamp body shall be coloured lemon, colour reference No.355, or golden yellow,
30、colour reference No.356 of BS 381C : 1988. NOTE. It is recommended that the lamp has provision for mounting upon legs or similar. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 BS 3143 : Part 2 : 1990 (a) 3608 lamp (b) Lamps other than 36
31、08 lamps Figure 1. Method used to determine the shape and size of the lens of a lamp 4.1.2 Lenses Each lens, excluding any retroreflective ring, when measured with the lamp standing on a horizontal surface, shall be of such a shape and size that: a) in the case of 3608 lamps, the perimeter of the or
32、thogonal projection of its area on to any vertical plane lies wholly within a square having sides 125 mm long and wholly outside a square having sides 40 mm long (see figure 1(a); b) in the case of all lamps not covered in (a), the perimeter of the orthogonal projection of its area on to a vertical
33、plane normal to the principal axis lies wholly inside a circle of 150 mm diameter and wholly outside a circle of 100 mm diameter (see figure 1(b). Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 BS 3143 : Part 2 : 1990 4.1.3 Light source a
34、nd electrical requirements The lamp shall be provided with a concealed ON/OFF device to control the operation of the lamp. The device shall be positioned such that actuation is possible when the lamp is assembled and mounted in the manner intended by the manufacturer. Where the lamp is fitted with a
35、 photosensitive ON/OFF device, it shall cause the lamp to be on when the ambient illumination falls below 50 lx. NOTE. It may be useful to provide an overriding switch where a photosensitive switch is incorporated to permit a lamp to be switched on when ambient illumination is fairly high, but visib
36、ility is low, such as may be found in fog in daylight hours. Radio interference emitted from the lamp shall be within the limits specified for continuous noise in BS 800. All parts of the lamp having a potential of greater than 50 V shall be shrouded or insulated in such a way as to provide protecti
37、on against accidental contact equal to classification IP4X of BS 5490 : 1977. The power source shall be either a disposable or rechargeable battery. 4.2 Assembled lamp 4.2.1 General The assembled lamp shall comprise an optical system and a power source which may be either separate or integral with t
38、he lamp. The optical system may have one or more lenses or may emit light throughout 3608. Lenses shall be mounted vertically. Where a lamp has two lenses they shall be mounted parallel to one another. The light source and power source of the lamp shall be capable of being readily replaced. Where ne
39、cessary, provision shall be made to ensure that the optical component can only be replaced in correct relationship to the light source. NOTE 1. Where a lamp is intended to be disposed of as a single unit the above requirement is considered as being complied with. NOTE 2. Access to certain lamps may
40、only be by the use of a tool recommended by the manufacturer. 4.2.2 Mechanical strength When tested in accordance with A.1 no part of the lamp shall become detached, or be damaged to such an extent that the lamp no longer complies with 4.1.3, 4.2.5, 4.2.7 and clause 6. In addition it shall still be
41、possible to actuate the lamp and, where appropriate, the lamp shall remain flashing. NOTE. A failed light source may be replaced. Any damage sustained by the battery compartment shall not prevent a battery change or charge taking place, or affect the operation of the lamp. 4.2.3 Mechanical stability
42、 When tested in accordance with A.2 the lamp shall not overturn. 4.2.4 Continuous operation 4.2.4.1 Flashing lamp A flashing lamp, when fitted with a new or fully charged battery and light source, both of a type recommended by the manufacturer of the lamp, shall be capable of operating continuously
43、at the design flashing rate (see 6.1.1) for not less than 24 h at an ambient temperature of 02 8C. NOTE. The time period of 24 h does not necessarily represent the useful life of the lamp. 4.2.4.2 Steady burning and ripple lamps Steady burning and ripple lamps, when fitted with a new or fully charge
44、d battery and light source, both of a type recommended by the manufacturer of the lamp, shall be capable of operating continuously for not less than 24 h (see note to 4.2.4.1) at an ambient temperature of 02 8C. NOTE. This requirement relates to ripple lamps operating at their design flashing rate (
45、see 6.1.2). 4.2.5 Resistance to ingress of water Lamps shall comply with the requirements for IPX4 when classified in accordance with BS 5490 : 1977. 4.2.6 Resistance to solvents When tested as described in clause 12 of BS 873 : Part 1 : 1983 no part of the lamp shall show evidence, after 5 min, of
46、softening or dissolving of the surface or any other deleterious effect. 4.2.7 Resistance to corrosion When tested as described in clause 13 of BS 873 : Part 1 : 1983, but with only two periods of exposure, there shall be no deterioration, corrosion or evidence of colour change on more than 5 % of an
47、y of the following: a) total outside surface of the lamp body; b) total inside surface of the lamp body. The lamp shall operate normally when switched on. 4.2.8 Performance in extreme temperatures When tested in accordance with A.3 and A.4 the lamp shall comply with the requirements of clause 6. NOT
48、E. This requirement applies only to the light source and control electronics of the lamp, and not to the operation of the power source, e.g . battery. 4.2.9 Gaskets Gaskets shall be positively retained in their seating and shall not work loose during normal use and maintenance. Licensed Copy: sheffi
49、eldun sheffieldun, na, Wed Nov 29 08:58:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 BSI 1998 BS 3143 : Part 2 : 1990Issue 2, December 1998 | | | 5 Colorimetric performance The colour of light emitted by the lamp, defined in terms of its chromaticity coordinates using the trichromatic system described in CIE Publication 15.2 : 1986, shall fall within the area of the chromaticity diagram bounded by straight lines joining the appropriate points indicated as follows: xy Yellow0.5430.457 0.5430.428 0.6180.382 0.6120.382 6 Photometric performance 6.1 Flashing rate (see also 4.2