Calculation of grouping factor for 3 phase tails

[spud1]

Hi, when determining a grouping factor for a galvanised trunking containing 3 phase tails, and when consulting table 4C1 BS7671 to determine the factor does each phase/tail count as a seperate circuit or are the tails considered in themselves one three phase circuit?
Thanks

 

[infinity]

Surely if it's 3 phase, it's one circuit. Fed via one breaker/ fuse

 

[telectrix]

wot he said^^^^^

 

[spud1]

Lovely thank you gentlemen!

 

[Engineer54]

Sounds about the same daft idea as applying a grouping factor to a parallel supply!! ...lol!!

Eg, ....it's a ''Single 3 phase Circuit''!!

 

[Rockingit]

Lol....Eng!!!! What have you done??!! You've gone and dug the old chestnut up, it'll take us ages to bury it again! I was in therapy for weeks after that last ridiculous thread...what a waste of money that was now!! Am holding you entirely responsible for the onslaught about to happen and I hope you've got a decent stack of Valium to hand.