TRAFFIC SIGN LIGHTING - SEEN IN RELATION TO THE CURRENT RE-DRAFT OF BS873

The author reviews the proposed new version of BS873 and analyses the important changes in policy involved. The structure of the new standard, which will be separated into a number of sections, is discussed. Separate parts of the standard will deal with the post, mounting and plate; reflective performances of surfaces; tests and electrical and illumination aspects. The testing of materials is discussed. The author suggests that the test cycle should meet operating conditions as near as possible. It is impossible to describe a policy on behalf of all users. There are little opportunities for the use of other than standard fluorescent lamps. A more relaxed terminology is needed to allow development. In order to meet the new standard, dual circuits will be required to provide a back up when using cold cathode lighting. Difficulties with high background luminance are discussed. The major advantage of the new standard is that units may be compared without resorting to photometry. (TRRL)

  • Corporate Authors:

    Association of Public Lighting Engineers

    78 Buckingham Gate, Westminster
    London SW1E 6PF,   England 
  • Authors:
    • Barnes, B T
  • Publication Date: 1980-3

Media Info

  • Pagination: p. 36-37
  • Serial:
    • Public Lighting
    • Volume: 45
    • Issue Number: 1
    • Publisher: Association of Public Lighting Engineers

Subject/Index Terms

Filing Info

  • Accession Number: 00323047
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: May 21 1981 12:00AM