Changes for the 18th Edition - Disconnection times for distribution circuits in a TN system

Question

Hi, 
 With reference to the post in " Changes for the 18th Edition ", what is the reason for considering 1 Sec (see snap below) disconnection time for Other circutis in TN system. 
 As per BS 7671:2018 Regulation 411.3.2.3 - In a TN system, a disconnection time not exceeding 5 s is permitted for a distribution circuit and for a circuit not covered by Regulation 411.3.2.2. 
 So is this supposed to be 5 Sec as per the BS 7671?

Shane Regan · Answer

Hi Yadagani, 
 The reference here to the previous 17th edition regs is included for consistency with older 17th edition projects so that they are compatible in the latest version . This option will be disabled if you create a new project as the 18th edition will be chosen by default.

Shane Regan · Answer

Hi Yadagani, 
 This may just be a display issue as I believe the software does take the figures you mention into account - please see the following excerpt from the manual:

I am consulting our development team to see if this is the case.

Shane Regan · Answer

Hi Jonathon, 
 Yes, update 8 has been released for this - please see further information here.