BS 505:1971
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Specification for road traffic signals
Hardcopy , PDF
15-07-2000
English
12-10-1971
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Co-operating organizations
Foreword
Specification
1 General
1.1 Scope
1.2 Definitions
2 Optical requirements
2.1 Distribution of light
2.2 Directions of beam
2.3 Arrangement of optical systems
2.4 Green arrow
2.5 Pedestrian signal
2.6 Pedestrian push-button box
2.7 Limits of chromaticity of signals
2.8 Height of signal
3 Constructional requirements
3.1 Signal head assembly
3.2 Signal head
3.3 Optical systems
3.4 Reflector
3.5 Lamp and lamp holder
3.6 Visor
3.7 Post
3.8 Supports for overhead mounted signals
3.9 Equipment housing
3.10 Locks
3.11 Interconnecting cables
3.12 Earthing
3.13 Mains termination
3.14 Post Office equipment
3.15 Safety
3.16 Controller electrical components
3.17 Time switch
3.18 Cable and wiring
3.19 Interchangeability
3.20 Vibration and noise
3.21 Radio interference
3.22 Ambient air temperature
4 Tests
4.1 General
4.2 Timing
4.3 Compliance with customer requirements
4.4 Insulation resistance and electric strength
4.5 Chromaticity
4.6 Luminance measurements (green arrow and red and
green pedestrian signals)
4.7 Optical systems - conformity of production
4.8 Measurement of phantom effects
Appendices
A Information to be given with enquiry and order
B Typical symbols to be used on plans
Tables
1 Distribution of red and green light for signals on
normal roads (candelas)
2 Distribution of red and green light for signals on
high-speed roads (candelas)
3 Minimum values of luminance for green arrow and
red and green pedestrian signals (candelas per
square metre)
4 Multiplying factors for adjusting the minimum
intensity/luminance values shown in Tables 1, 2,
and 3
Figures
1 Permitted arrangement of green arrow signals
2 Optical system spacings
3 Symbols for pedestrian signals
4 Signal heads
5 Green arrow
6 210 mm signal visors
7 300 mm signal visors
8 Pedestrian crossing control panel
9 Mask for luminance measurements on 300 mm signal
Optical and constructional requirements and tests. Includes requirements for pedestrian controlled and wig-wag signals.
| Committee |
EPL/526
|
| DevelopmentNote |
REMAINS CURRENT UNTIL 01.7.2000
|
| DocumentType |
Standard
|
| Pages |
36
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy |
| DEFSTAN 02-587(PT1)/3(2008) : 2008 | REQUIREMENTS FOR LIGHTING SYSTEMS - PART 1: SURFACE SHIPS |
| BS 873-2:1984 | Road traffic signs and internally illuminated bollards Specification for miscellaneous signs |
| BS 2011-2.1A:1977 | Environmental testing. Tests Tests A. Cold |
| BS 2011-2.1B:1977 | Environmental testing. Tests Tests B. Dry Heat |
| BS 4300-2(1973) : LATEST | BTR SI AND BTR S2 SHEET AND STRIP SUITABLE FOR BRIGHT TRIM/REFLECTOR APPLICATIONS |
| BS 2569-1:1964 | Specification for sprayed metal coatings Protection of iron and steel by aluminium and zinc against atmospheric corrosion |
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