Discuss Max ZS for BS 3871's in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

just googled this to check and

17th Edition Maximum Ze & Zs Values

states "BS7671 does not give maximum Zs values for BS 3871 mcb's"

If you have the disconnection time, device manufacturer (if not i can use generic) and rating I can use my software (single cable) to find the values.

Hi guys, James here with first post!


Does anyone know the max permitted Zs for a 32A type 4 3871 mcb?

Many thanks to anyone who can help, cheers


James.


5s = 1.0034
0.4s = 0.5134

Taken from Single Cable 17th eddition generic values
 
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