Effect of Initial Preservative Treatment on Electrical Conductivity in Douglas-Fir Pole Sections

Abstract

The effect of copper naphthenate treatment on electrical resistance of Douglas-fir utility poles was compared with similar poles either left untreated or treated with pentachlorophenol (penta). Penta-treated and untreated wood had similar electrical resistance shortly after treatment and after a 3-month outdoor weathering period. Electrical resistance of copper naphthenatetreated wood was more variable but consistently greater, indicating that poles treated with this chemical would not pose an increased risk to utility personnel working on them.

Borates in remedial treatments for timber in service

“…External decay is usually arrested by application of external preservative pastes that supplement the original treatment and there are a number of tests evaluating different systems [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. The paste is applied to the exposed surface (usually below the ground) and covered with a kraft wrap to help contain the chemicals before the soil is replaced.…”