db marking

[telectrix]

not in arabic.

 

[Des 56]

I think it was supposed to say Dydd Gwyl Dewi Sant Hapus.

He must really be one mixed up guy then lol

 

[telectrix]

who is saint hapus?

 

[Silly Sausage]

I think it was supposed to say Dydd Gwyl Dewi Sant Hapus.

So it is.
I'm off out Lamb rustling.

 

[John Barclay]

talking about 3ph DB
that as
5 l1 6 l1
5 l2 6 l2
5 l3 6 l3
3 l1 4 l1
3 l2 4 l1
1 l1 2l1
1 l2 2 l2
1 l3 2l3

if you see what I mean

 

[ipf]

I think I'm getting the jist......re label the DB circuit numbers to suit your methods.

 

[spark 68]

I have seen some DBs marked in some odd ways, when we were panel building the project manager at one place wanted circuit 1 closest to the main switch,on the left, and circuit 2 on the right and so on, so you had all the odd numbers on the left and even on the right, ascending up over, but I have seen plenty of other ways of numbering

Conventionally the circuits are numbered from the incoming supply, usually from highest rated OCPD to the lowest, I think this was for historical reasons as now most internal DB bus-bars are fully rated so it don't really matter, maybe our teachers were from an older generation and the practice just followed on ?

Anyway, it doesn't really matter whatever the physical layout is as far as the schedule of test results is concerned so long as the data matches the correct circuit.

 

[telectrix]

House!

 

[Silly Sausage]

talking about 3ph DB
that as
5 l1 6 l1
5 l2 6 l2
5 l3 6 l3
3 l1 4 l1
3 l2 4 l1
1 l1 2l1
1 l2 2 l2
1 l3 2l3

if you see what I mean

The Correct way is to number clockwise, starting at the Main switch.

 

[Risteard]

not in arabic.

LOL. Numbers go from left to right in Arabic - it's only text that goes from right to left.

 

[ipf]

The Correct way is to number clockwise, starting at the Main switch.

1 to 12, yeah.....oh!..but what if there are more than 12 circuits????:dunce2: