ON site PCB analysis in support of a transformer rebuliding project

摘要

The Emergencies Science Division (ESD) was contracted to peform on-site PCB analysis during a transformer rebuilding project at Sault Ste-Marie, Ontario. The rebuilding of the two transformers were carried out during December 1997 to January 1998. Samples generated on site consisted of the original transformer oil, surface wipes, varsol rinses of the transformer tank and fins and the backfill R-Temp fluid. To validate the proposed rebuilding method, extensive analysius of the solvent rinse samples were carried out. All surface wipe sampes after w ash down twice with varsol showed surface conentration of several hundred #mu# g/100 cm~2, well below the target 1000 #mu# g/100 cm~2.