Can a pole be made of wood?

Utility poles can be made of wood, metal, concrete, or composites like fiberglass. They are used for two different types of power lines: sub transmission lines, which carry higher voltage power between substations, and distribution lines, which distribute lower voltage power to customers.

What formula is used to calculate the setting depth of a wood pole?

Standard setting depth is 10% of the pole length plus 2-ft. A pole is a tapered cylinder and since the 45′-4 setting depth is 6.5-ft., the ground-line circumference must be adjusted for the additional 0.5-ft. of depth.

What is the diameter of a wood utility pole?

Class 1 poles range from 35 to 125 feet in length and have a minimum 27-inch circumference at the tip. Their horizontal load-bearing capacity is 4,500 lbs. The sizes drop incrementally down to Class 5, which are 20 to 50 feet in length and a minimum of 19 inches in circumference.

Why are wooden poles electric?

Wooden Poles Made Life More Livable As a remedy, Morse strung it on poles overhead. [2] When home delivery of electricity became the norm, wooden poles made the most sense for distribution. When mass communication and entertainment was born, the infrastructure was tapped to support that too.

How long do wood poles last?

Wood poles offer an opportunity for atmospheric carbon sequestration not provided by other materials. An Electric Power Research Institute study suggested that wood poles lasted 50 years. Most utilities assume that their poles provide 30 to 40 years of service life.

How much of a pole should be in the ground?

Calculating the Depth of the Pole Poles are typically set into the ground: 10% of the overall height + 2 feet, except in questionable soil conditions. Example: Overall pole height: 30 feet, the pole should be buried: 3 feet + 2 feet = 5 feet below grade, and 25 feet above grade.

How deep should a power pole be?

Depth – Power-Pole has a maximum deployment of 10ft deep for the most effective stopping and holding vs. 12ft.

How tall is a wooden power pole?

Typical utility poles measure 30 to 60 feet for poles in residential neighborhoods, and from 60 feet to over 120 feet along major highways.

How are wooden poles classified?

The ANSI 05.1 classification system is based on pole load capacity. This system treats all poles that meet the acceptance criteria as a single grade in which strength varies only with species. Poles are classified only by the size needed to meet preset load capacity requirements for the target pole class.

Where do wood telephone poles come from?

Into the Forest Getting the best pole starts in the woods. Poles are typically made from three species: Douglas Fir, Western Red Cedar and Southern Pine. Logs that have the potential to become wood poles are selected in the forest, often while the trees are still standing.

How do you cut cedar posts?

Stack the posts, rick style, and allow them to age for one year. Knock away the loose bark from the dried cedar after the first year, using a mallet or hammer. The posts are now ready to be used as fencing. Cut the tree, with the chainsaw, approximately two feet above the ground using safe, tree-felling procedures.

What are the standards for preserved wood poles?

Standards that define the quality, dimensions and basic engineering data for preserved wood poles were first written in the early 1900s. Design values for wood poles have been refined over the decades by testing and an extensive record of in-place performance under rigorous conditions.

What are the structural components of a pole building?

Structural Components For Light Lumber roof trusses, purlins and metal deck. Pressure treated timber poles. Small concrete foundation around the poles that extend 4 feet or more into the ground. Girts and Siding. Pole buildings could be used as a barn, shop, office and/or residence.

Do you need a structural engineer to build a pole building?

Structural Design Most cities and counties require permits for pole buildings over a certain size or height, always check with your local building department. Although the design of pole structures is basically very simple, structural engineers should be employed in the design.

Why choose our pole barn (pole building) plans?

Our Professionally Licensed Engineers will ensure that your pole building will be safe and designed to resist loads imposed by wind, snow, earthquakes and other natural elements. Our pole barn (pole building) plans are designed to last. They are: accurately designed, safe, and yet economic to build.