METHOD FOR DISMANTLING TRANSFORMER CONTAINING PCB LIQUID IN INSTALLATION SITE

摘要

PROBLEM TO BE SOLVED: To reduce the PCB concentration of the dismantlement space in an installation site, to prevent PCB from leaking outside the work space, to seal a transformer so that the PCB liquid left in the dismantled parts from being brought into contact with the outside air, and to prevent occurrence of dioxin.;SOLUTION: A method has a first process for surrounding the transformer containing PCB liquid with a tray laid on a floor, covering the transformer with a hood, forming a separation chamber by joining the tray with the hood, and connecting an exhaust device and a PCB removing device to a vent hole made in the separation chamber; a second process for discharging the air from the vent hole while air is taken in from an inlet hole 33 made in the separation chamber, and removing the PCB liquid from the transformer in the separation chamber; and a third process for dismantling at least one of a radiator, a burst tube, a conservator and a bushing from a case with a transformer main body, by removing a fastener of the transformer, stopping a close cover to an opening part formed in the case or bonding it so as to seal dismantled articles.;COPYRIGHT: (C)2004,JPO