Abhilash said:
DEAR SIR,
In this case we can go for
Rated insulation voltage for the DB: Ui …… how much for doing Asta type test with this DB as per IEC61439.
Dear ;
As we use ” Ui ” to do the tests for ” Dielectric , Clearance & Creepage “, and if the DB contains RCCB where for some of them ” Ui : 440V “, in this case we should use ” Ui : 440V ” to do these tests.
But :
– If there's ” MCB ( C60… & C120… )+ Vigi-block ” we can use ” Ui : 500V “.
– If there's ” MCB ( only NG125… )+ Vigi-block ” we can use ” Ui : 690V “.