Mute
ELETRICITY - O CANAL
No esquema TT temos o neutro aterrado no padrão de entrada e um aterramento na edificação completamente isolado, ou seja, não existe conexão entre neutro e terra em nenhum ponto da instalação. Em caso de falha, a corrente circula pelo solo e por isso tem valor baixo, sendo insuficiente para acionar disjuntores ou fusíveis. Se estes dispositivos não atuam, temos consumo elétrico e pessoas estão em risco de choque. O uso de dispositivos como o IDR (interruptor diferencial residual) é obrigatório ...
Ikuti
638
2
214
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