Accredited Standards Committee O5

Standards for Wood Utility Structures

ASC O5 Standards and Other Publications

Note:  ASC O5 Standards and Technical Reports are currently available as downloadable PDF files from the following sources:

Alternately, you may click on the document designations below to purchase these documents from the ANSI eStandards Store:

ANSI O5.1-2008

(Approved by ANSI - September 2008)

Wood Poles - Specifications and Dimensions

ANSI O5.2-2012

(Approved by ANSI - May 2012)

Wood Poles - Structural Glued Laminated Timber for Utility Structures

ANSI O5.3-2008

(Approved by ANSI - July 2008)

Wood Products - Solid-Sawn Wood Crossarms and Braces - Specifications and Dimensions

ANSI O5.4-2009

(Approved by ANSI - July 2009)

Naturally Durable Hardwood Poles – Specifications and Dimensions

ANSI O5.5-2010

(Approved by ANSI - June 2010)

Wood Ground Moulding - Specifications & Dimensions

ANSI O5.6-2010

(Approved by ANSI - October 2010)

Solid Sawn Naturally Durable Hardwood Crossarms & Braces - Specifications & Dimensions

O5.TR.01-2004

(Approved by ASC O5 - June 2004)

Photographic Manual of Wood Pole Characteristics (based on ANSI O5.1)

 

The ASC O5 Operating Procedures are available for free download by clicking this link.

In the development of the O5 Standards, a database of wood pole test data was used.  It was last updated on 30 May 2002 and includes data from EPRI 1,2,3,4,5,6

1 (Copyright © (1985). Electric Power Research Institute. EL-4109-V1. Wood Pole Properties, Volume 1: Background and Southern Pine Data. Reprinted with Permission.
2 (Copyright © (1986). Electric Power Research Institute. EL-4109-V2. Wood Pole Properties, Volume 2: Douglas Fir Data. Reprinted with Permission.
3 (Copyright © (1986). Electric Power Research Institute. EL-4109-V3. Wood Pole Properties, Volume 3: Western Red Cedar Data and Size Effect. Reprinted with Permission.
4 (Copyright © (1981). Electric Power Research Institute. EL-2040-V1. Probability-Based Design of Wood Transmission Structures. Reprinted with Permission.
5 (Copyright © (1981). Electric Power Research Institute. EL-2040-V2. Probability-Based Design of Wood Transmission Structures. Reprinted with Permission.
6 (Copyright © (1981). Electric Power Research Institute. EL-2040-V3. Probability-Based Design of Wood Transmission Structures. Reprinted with Permission.