4mm in walls is <32 yet we use 32A mcb | Page 2 | on ElectriciansForums

4mm in walls is <32 yet we use 32A mcb

Discuss 4mm in walls is <32 yet we use 32A mcb in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

Forgot to mention, some of those 4mm final ring circuits are protected by 40A type B RCBO's.
I wonder who's going to have kittens over that, because nothing is mentioned in BS7671 or any of OSG's etc about 40A ring circuits?? lol!!
 

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