- Feb 25, 2011
- 9,547
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- If you're a qualified, trainee, or retired electrician - Which country is it that your work will be / is / was aimed at?
- United Kingdom
- What type of forum member are you?
- Practising Electrician (Qualified - Domestic or Commercial etc)
- Business Name
- Richard Burns
For reference these are the Zs tables from BS7671 Amendment 3, provided by Amberleaf.
I have cleaned up the scans a bit which is why they may look a bit odd round the edges.





Remember IET have also issued the corrected tables for the latest GN3 page 121 table A4 and OSG table B6 which are available for free download here .
I have cleaned up the scans a bit which is why they may look a bit odd round the edges.





Remember IET have also issued the corrected tables for the latest GN3 page 121 table A4 and OSG table B6 which are available for free download here .