Disconnection Times

[m4tty]

Hi,

Why is it for circuits above 32A have disconnection times of 5s and under is 0.4s.

Thanks

 

[electrocuted]

I think it is to do with fixed supply as a shower and cooker circuits for 5 sec as they are usually above 32A and 0.4 sec for the rest which is usually portable.

IMO.

 

[electrocuted]

I think it is to do with fixed supply as a shower and cooker circuits for 5 sec as they are usually above 32A and 0.4 sec for the rest which is usually portable.IMO.

Sorry for the rushed what i meant to say that above 32A tend to be fixed load iie shower or cooker circuits and disconnection time is 5 sec and below 32A tend to be socket circuit and these serve portable appliances ,kettles ,toasters,etc.

hope i'm right.

 

[Lee321]

you could have a 10a 5s circuit tho

 

[the doctor]

hi

the other posters have covered it, but there is more.....

the 5 second thing is exclusive to the uk and is something we refuse to give up (a little like the

 

[Lurch]

who remembers this then? and tonights quiz? what was the fusing factors for other devices:coat

alan

60898 MCB's 1.2?

This was part of the 16th as well, I did it as an apprentice.