高圧 こうあつ電流 でんりゅうじゃありませんでした
kōatsudenryūjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 高圧電流

1. It was not high-voltage current.; It wasn't high-voltage current.

Past/Perfective
Negative
Polite
Terminal Form