絶縁 ぜつえん抵抗 ていこう けいじゃありませんでした
zetsuenteikōkeijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 絶縁抵抗計

1. Was not an insulation resistance meter.; Was not a disconnecting switch.

Past/Perfective
Negative
Polite
Terminal Form