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?
poured-in place foundation
pre-cast and bury foundation
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