R4-1 & 2 Lighting Standards

Cards (14)

  • What is the point of a lighting standard?
    Elevates the source of illumination above the surface to be lit
  • What is the common voltage level of lighting standards?
    Up to 347V to ground
  • What are the different types of lighting standards?
    -traffic signal standards
    -roadway lighting standards
    -parking lot lighting standards
    -driveway, decorative and security lighting standards
    -sports field lighting standards
  • What is the height of traffic signal standards?
    6m to 9m
  • What are standards usually made of?
    Galvanized steel
  • What are roadway lighting standards for?
    installed where driver attention needs to be increased or where conditions dictate that a higher level of light intensity be provided to improve safety
  • what is the height of roadway lighting standards?
    Can be 30m or more in height
  • What is the difference between roadway standards and parking lot sighting standards?
    Parking lot sighting standards are usually shorter. They are also most often installed on a concrete bollard that raises the base of the fixture so cars can bump into them (unlike roadway where the base will come off to save try and save the person)
  • What is the height of sports field lighting standards?
    can be 30m high, like roadway
  • What are the 3 primary methods of creating a foundation for a lighting standard?
    1. poured-in place foundation
    2. pre-cast and bury foundation
    3. metal screw-post anchor foundation
  • What does galvanized mean?
    coating steel or iron with a protective layer of zinc to prevent rust or corrosion. It is a barrier against moisture
  • Which method of creating a foundation is best for lateral loads?
    poured-in place
  • Which method of creating a foundation is not suitable for very high/long lighting standard loads?
    pre-cast and dig foundation. Also not good for metal screw post anchor foundation
  • What is the kellum grip?
    It holds wire in place sturdily (vertical support) and acts to prevent theft. It must be put on before you terminate the conductors