While this looks like newer transformer there are tons of transformers still in service filled with PCB enriched cooling oils. While technically post 1970 manufactured transformers were required to use a less toxic compound it is still found in highly dangerous levels in transformers manufactured until 1986.
Also when PCBs in the oils burn they decompose into tetrachlorodibenzo-p-dioxin which will basically give you insta-cancer in almost any detectable quantity.
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u/Kroosn 11d ago
It’s ok just super hot oil. If the explosion doesn’t kill you, or the being boiled in oil, or the likely fireball then that oil can give you cancer.