About ten minutes ago, I got an e-mail notification from the IET Shop that 'The Big Orange Book' has been dispatched and is on its way to me . . . 
About ten minutes ago, I got an e-mail notification from the IET Shop that 'The Big Orange Book' has been dispatched and is on its way to me . . .
So UPS just delivered my updated BS7671 publication. Despite ordering it in advance months ago, and notification earlier this week its on its way. Its taken that wee bit longer to make its way up north to Loch Lomond side!! frustrating others on the forum had delivery far earlier.
Then again, given it was a Electric vehicle van that delivered it and not a ICE one, I just put it down to the number of times the van had to stop and charge to get all the way here.
Anyway it certainly is Orange.
Cheers GTB
So UPS just delivered my updated BS7671 publication.
The brown van arrived here on the very sunny south coast just before lunch.
I agree rather disappointing. Did others get them from 3rd party vendors more quickly?
Anyway it certainly is Orange.
The Dutch would love it. :-)
I am surprised how much GN3 has expanded.
I am surprised how much GN3 has expanded.
There are fewer pages than the 2022 9th Edition (197 in 2022, 189 in 2026).
The guidance on the forms that is in Appendix 6 of BS 7671 has not been duplicated in GN3 (because it doesn't really add anything), although the guidance remains for the Generic Schedules of Circuit Details and Test Results, as this is not in BS 7671.
OK, since my last edition. 
Guidance for EICRs has changed so that FIs don't mean an unsatisfactory outcome. Surely this should be in GN3?
The purpose of a periodic inspection and testing is " to determine ,so far as is reasonably practicable, whether the installation is in a satisfactory condition for continued service".
Appendix 6 is informative not normative so, is only guidance. The EICR inspection form residential and similar installations up to 100A.
The outcome of the report is a binary option either satisfactory or unsatisfactory, there is no third option of not determined.
The FI code should be a rarely used option.
If I could not determine with a high degree of certainly, without further investigation, that the installation was satisfactory for continued service I would not record it as satisfactory. If I could type in undermined, if the software permitted, and write in why I further inspection was needed.
JP
since my last edition
Ah, yes, there was a thorough re-write in 2022, so that added about 20 % to the book. Among that were done for the 9th Ed in 2022:
Most of the illustrations of test methods were re-drawn.
Updated guidance on ring final circuit testing (expected readings when you are using rings that are wired in something other than singles or 2.5/1.5 flat cable ... the theory behind it is explained in this wiring matters article: https://electrical.theiet.org/wiring-matters/years/2022/89-march-2022/resistance-readings-for-step-3-of-the-ring-final-circuit-test/ ).
Revised guidance for RCD testing (as it was in 2022 BS 7671 clarified there was no requirement of the standard to do a 5x test, or any of the additional tripping tests for Type A, Type F and Type B RCDs that are available with some instruments).
New information on tests for prosumer's electrical installations.
More information on sampling.
New Appendix C showing use of a clamp tester to provide an indication of the state of insulation in circuits downstream of the point of test.
New Appendix D on checks for diverted neutral currents.
since my last edition
Ah, yes, there was a thorough re-write in 2022, so that added about 20 % to the book. Among that were done for the 9th Ed in 2022:
Most of the illustrations of test methods were re-drawn.
Updated guidance on ring final circuit testing (expected readings when you are using rings that are wired in something other than singles or 2.5/1.5 flat cable ... the theory behind it is explained in this wiring matters article: https://electrical.theiet.org/wiring-matters/years/2022/89-march-2022/resistance-readings-for-step-3-of-the-ring-final-circuit-test/ ).
Revised guidance for RCD testing (as it was in 2022 BS 7671 clarified there was no requirement of the standard to do a 5x test, or any of the additional tripping tests for Type A, Type F and Type B RCDs that are available with some instruments).
New information on tests for prosumer's electrical installations.
More information on sampling.
New Appendix C showing use of a clamp tester to provide an indication of the state of insulation in circuits downstream of the point of test.
New Appendix D on checks for diverted neutral currents.
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