Guidence note 3

[tuckermot]

Hi all
Do i need to purchase gn3 17th edition as i all ready have gn3 16th edition.I am about to start 2391 is there much difference between the the old and new book apart from zs tables ect
thanks
Rich

 

[kung]

Hi Rich
There are diff coding for disc in periodics in the new 17th ed such as some code 2 16th ed are now a code 3 etc your tutor will be able to advise more. but just like onsite guide and bs7671 it will be worth updating to the new 17th ed copy of GN3 as this is now what your working to.

 

[tuckermot]

thank you for quick reply kung ,i will go and buy one on ebay now

thanks
Rich

 

[kung]

Ok and best of luck with 2391-10 !
Regards
Tony.

 

[tuckermot]

thanks kung i can only but try