I have been regressing lately to traditional trains. I saw this car for the first time last month. It struck me how absurd the markings are. Maybe a bit of an inside joke for electrical guys.
First off transformer warning placards are usually about volts, not amps. Second no power transformer built can handle 10 million amps or volts.
A good friend works at a local hydroelectric plant that could power about a third of the state on its own. Of course they transmit at high voltage to keep the current on the wires down. Still the total amps they produce is about 1/50th of what Lionel's is rated at. I told him they need to get their transformers from Lionel and he said theirs come from China too.
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Pete