Copper Azole Type A (CBA-A) Pole Field Study

摘要

In 2002,58 Southern Pine utility poles (3 charges) were treated with copper, boron, and tebuconazole (CBA-A). The poles were put into service at a rural electric co-op near Charleston, SC. This area would be considered a Hazard Class Zone 5 exposure due to its proximity to the coastal area.In 2014 the poles were visually inspected and cores were taken in the standards area of within 1 foot of the brand (upper zone). Additional cores were taken within 18" of the ground (lower zone). To determine the preservative remaining in the poles, thecores samples were cut into lA inch zones from the surface to 3.0 inches from the surface. Sections were analyzed for copper, tebuconazole, and boron. In 2015, Mississippi State University performed soil sampling and analysis for copper and boron in various proximities and depths of six of the poles.