Feeder and Branch separation point

[freakydeakie]

Hi, could some one please explain to me the point at which the feeder stops and becomes a branch on the attached drawing. This is really bugging me and if I had hair it would all be ripped out by now and I am struggling to under stand. Anyone's help would be most appreciated.
Thanks in advance

 

[westward10]

From the EMC filter?

 

[Andy-1960]

We have done work for the USA and UL and they state :

Branch Circuit: The conductors and components following the last
overcurrent protective device protecting a load.

But I must admit it is always a contentious subject!

 

[SparkyChick]

Personally I would have said after F1 because at that point it ceases to be a single feed and becomes multiple branches, but if that's the definition. But then they do call a 2 way light switch a 3 way.

 

[freakydeakie]

Thanks for the reply's. I just wanted confirmation as many people have different thoughts on this, but I have to agree with Andy, anything before fuses F4,5,6&7 are treated as feeder, anything after are branch.
If anyone else can input on this it would be appreciated.

 

[dmxtothemax]

QUOTE [ But then they do call a 2 way light switch a 3 way. ]
Because a 3 way switch (spdt) has 3 connections.
Where's as a normal switch in USA only has 2 connections.