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Afternoon all
Hopefully someone can throw some light on a small problem i have.
I am currently on a job, carrying out an eicr on a building and i am confused by the ocpd feeding it......
The set up is, main cut out in the sports hall building, then there are 5 circuits fed from the 200a main panel, this is where the theatre building i am testing is fed from.
The Zs at the 3 phase board is around 0.45.
The ocpd feeding it is branded OEZ and has C80 on it, which if you class it as a standard 60898 mcb would obviously put the Zs way above the max value. But as it's physical size is bigger than a standard 60898 3 phase mcb it has confused me, is it an mcb or mccb?
Google doesn't throw up much help so thought i would try here.
Thanks
Matt
View attachment 35493
View attachment 35494
Hopefully someone can throw some light on a small problem i have.
I am currently on a job, carrying out an eicr on a building and i am confused by the ocpd feeding it......
The set up is, main cut out in the sports hall building, then there are 5 circuits fed from the 200a main panel, this is where the theatre building i am testing is fed from.
The Zs at the 3 phase board is around 0.45.
The ocpd feeding it is branded OEZ and has C80 on it, which if you class it as a standard 60898 mcb would obviously put the Zs way above the max value. But as it's physical size is bigger than a standard 60898 3 phase mcb it has confused me, is it an mcb or mccb?
Google doesn't throw up much help so thought i would try here.
Thanks
Matt
View attachment 35493
View attachment 35494