About the issue of PCB
About transformer which cannot deny possibility of a very small amount of PCB mixture
1.With a very small amount of PCB mixture transformer
A very small amount of PCB mixture transformer was not originally oil transformer using PCB intentionally, but we said transformer considered that a very small amount of PCB got mixed with insulating oil in at the time of insulating oil production, transportation and became clear in 2002. About findings about a very small amount of PCB mixture to transformer made in us, please see the following.
- Visitor gave report to about detection example of oil transformer made before 1989 and acted for the cause elucidation while planning corporate judicial person Japan Electrical Manufacturers’ Association and cooperation, but did not reach the identification.
- We obtain fufukumishomeisho by PCB analysis from insulating oil maker about apparatus of production every year after 1990 and we analyze PCB regularly in our process of manufacture and strengthen management appropriately and judge if there is not mixture of very small amount PCB in shipment stage.
2.Our opinion about a very small amount of PCB mixture
Because we did not handle PCB oil and reproduction oil from the beginning of transformer production, we judged possibility of a very small amount of PCB mixture in process of manufacture that there was not, but were not able to identify cause investigation that which stage PCB got mixed with at and apparatus and the production generation. We do the following with we opinion about very small amount PCB mixture presence based on management (we confirm PCB non-component) doing transformer process of manufacture appropriately in thing, after 1990 when we did not carry out confirmation of PCB non-component in insulating oil before 1989.
- It is oil transformer of production before 1989: We cannot deny possibility of PCB mixture.
- It is oil transformer of production after 1990: There is no PCB mixture in our shipment stage.
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n addition, it becomes clear that mixture to insulating oil of very small amount PCB being extensive pollution to be started from use of reproduction oil, pollution cause last for the life cycle whole of insulating oil according to “cause investigation working papers” of low-concentrated PCB pollutant measures Exploratory Committee installed by Ministry of Economy, Trade and Industry, Ministry of the Environment (May 10, 2004 announcement), and plural number exists.
3.Matter which wants you to be careful about visitors
- In any of the transformer that transformer owning cannot deny possibility of a very small amount of PCB mixture, we have you analyze oil immediately at stage when you finished use, and it is necessary to confirm whether it is transformer of very small amount PCB mixture. (note 1)
- ■When level of polychlorinated biphenyl exceeds 0.5 mg/kg: We correspond to a very small amount of PCB mixture transformer.
- ■When levels of polychlorinated biphenyl are less than 0.5 mg/kg: We do not correspond to a very small amount of PCB mixture transformer.
- When a very small amount of PCB mixture becomes clear in used transformer, report is necessary for Manager Ministry of Economy, Trade and Industry Nuclear and Industrial Safety Agency industry preservation supervision to have jurisdiction over place setting up by 「electric report rule based on Electricity Enterprises Law concerned”.
- When we finish use of transformer that used a very small amount of PCB mixture became clear, we perform report (prefectural governors or the government ordinance mayor) by「“special measures law (PCB special measures law) about promotion of appropriate measures of polychlorinated biphenyl waste”, and appropriate storage (note 3) before processing is necessary.
- When a very small amount of PCB mixture becomes clear, we perform report (prefectural governors or the government ordinance mayor) by “special measures law (PCB special measures law) about promotion of appropriate measures of polychlorinated biphenyl waste”,and storage (note 3) that is appropriate till it processes is necessary for transformer keeping.
- PCB waste has a duty to complete processing by March 31, 2027. As disposal of a very small amount of PCB mixture transformers was performed start (note 4) of, please take an appropriate step within period.
- Judgment (note 2) by analysis of oil
- Notice 1：about thorough notifications of from Ministry of the Environment notice ring abolished product 051219001st low concentration PCB pollutant (PDF file)
- Notice 2：About business detected a very small amount of PCB note 2 by from Ministry of the Environment notice ring abolished product 040217005th heavy electric machinery mind apparatuses (PDF file)
- Notice 3：Note 3 refers to “about storage of very small amount PCB mixture transformer and transformer which cannot deny possibility of very small amount PCB mixture” for storage method.
- Notice 4：As for the processing of very small amount PCB mixture transformer, processing is started based on detoxification processing recognition system of method of waste disposal note 4, and it is disclosed information by Ministry of the Environment. Specifically, please confirm“about detoxification processing authorized facility based on Ministry of the Environment method of waste disposal”.。
※As you prepare for “flow (figure of flow) of distinction method and correspondence of a very small amount of PCB mixture transformer”, please refer.
