Disconnection time - Urgent help needed

[DanBrown]

Hi guys!,
could anyone tell me the disconnection time and maximum Zs from bs 7671 for

a three phase supply
on a bs 88 20amp

Thanks in advance

 

[EasyFox]

0.4seconds
&
1.77ohms

 

[ian.settle1]

Hi guys!,
could anyone tell me the disconnection time and maximum Zs from bs 7671 for

a three phase supply
on a bs 88 20amp

Thanks in advance

0.4seconds
&
1.77ohms

Does not matter whether it is a single phase or 3 phase supply for disconnection time or max Zs.

 

[DanBrown]

Thanks for that guys!,

any idea for a 63 amp bs 88 fuse?

 

[ian.settle1]

Thanks for that guys!,

any idea for a 63 amp bs 88 fuse?

Look in the regs page 49 table 41.4