electric panel schedule? 1

[CivilTom]

I need to make a panel schedule. I have no electric backround beside a chapter I studied from a physics class many years ago. Given the photo of the panel how do I make a schedule? This looks pretty straightfoward, I just want some advice..the schedule made has nothing to do with the panel picture, it is just an example layout i must use..


Link to pictures..

http://s1282.photobucket.com/albums/a525/bigphoto5...

 

[CivilTom]

WHOOPS! wrong link!

i dont know how to edit..here is the right album

http://s1282.photobucket.com/albums/a525/bigphoto5/Distribution/

 

[MiketheEngineer]

Double posting is frowned upon. Tag the first oen and the moderator will remove it

 

[MiketheEngineer]

I am not sure there is any specific rules other than you get the right wires to the right circuit breakers and mark them. Seems most electricians start at the top and work down leaving the lower ones for future.

Might check with the NEC

 

[CivilTom]

sorry mikem I tried deleting but didnt know how..ill tag it now

 

[DRWeig]

Go here, CivilTom.

http://www.dcengineers.com/downloads.html

These folks offer their stuff for free.

Best to you,

Goober Dave

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[VEBill]

If I understand this topic (it's not exactly my area), it would not be possible to prepare a 'Panel Schedule' with only "Given the photo of the panel..." One would require the details about the wiring inside the panel, and so on. Right?

(Just trying to clarify this point.)

 

[DRWeig]

VE1BLL,

You need to know which loads in the building are attached to which breakers and what VA each needs at full load so you can fill out the outer columns. The the innards behind the front cover are pretty standard, though. Attached is a pic I made for a class I teach in basic AC and power monitoring.

Circuits are numbered odd down one side and even down the other. The usual convention for single-phase is the left incoming phase is L1 or A, the right hand one is L2 or B. The odd numbers alternate down the breaker plug-in postions: 1=A,3=B, 5=A, 7=B, and so on. The even numbers do the same, and the phase is the same as the odd breaker directly across: 2=A, 4=B, and so on. That way, a two-pole breaker always grabs both phases.

For three phases, it's just ABC instead of AB and the breaker poles go 1=A, 3=B, 5=C, on to the bottom. For consistency, A is generally on the left and C is on the right when you look at the incoming feeder.

Best to you,

Goober Dave

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