Description
The standard utility pole in the United States is about 40 ft (12 m) long and is buried about 6 ft (2 m) in the ground. However, poles can reach heights of 120 ft (37 m) or more to satisfy clearance requirements. They are typically spaced about 125 ft (38 m) apart in urban areas, or about 300 ft (91 m) in rural areas, but distances vary widely based on terrain. Joint use poles are usually owned by one utility, which leases space on it for other cables. In the United States, the National Electrical Safety Code, published by the Institute of Electrical and Electronics Engineers (IEEE) (not to be confused with the National Electrical Code published by the National Fire Protection Agency ), sets the standards for construction and maintenance of utility poles and their equipment.
Standards for wood preservative materials and wood preservation processes, along with test criteria, are in ANSI, ASTM, and AWPA specifications, and in GR-60, Generic Requirements for Wooden Utility Poles.
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