漏電 ろうでん遮断 しゃだん ではありませんでした
rōdenshadankidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 漏電遮断器

1. Was not a leakage circuit breaker.; Was not an ELB.

Past/Perfective
Negative
Polite
Formal Register