they don't seem to be consistent with BS EN 60898 anyway - occasionally dangerously so
Could you highlight where the inconsistencies are? Are you referring to Table 7?
Back to this old discussion - https://communities.theiet.org/discussions/viewtopic/1037/24502 - which seemed to conclude that BS 7671 was claiming that certain rating of certain types of MCB would open within 5s for a given current whereas both BS EN 60898 and manufacturer's data suggested it could take up to 8s to disconnect.
they don't seem to be consistent with BS EN 60898 anyway - occasionally dangerously so
Could you highlight where the inconsistencies are? Are you referring to Table 7?
Back to this old discussion - https://communities.theiet.org/discussions/viewtopic/1037/24502 - which seemed to conclude that BS 7671 was claiming that certain rating of certain types of MCB would open within 5s for a given current whereas both BS EN 60898 and manufacturer's data suggested it could take up to 8s to disconnect.
