Conduit Circuiting Question

[Darkz]

I just started as an Electrical Drafter for this company and I'm trying to learn more and more each day where and how the stuff I draw comes from or how they come up with it.

What I'm trying to learn now is Connecting conduits to the lighting plan. I recently learned how to use a formula to determine how many lighting fixtures can go on a circuit but is there a method to how those lighting fixtures are connected?

Basically what I would like to be able to do is when I set up a drawing and I add in all the lighting fixtures I can start connecting them so hopefully to give my engineer less work to do or less correcting they'll need to do.

Any help you can give me would be great and also if you have any other resources that you think would be good reading material for me to better understand electrical Engineering from a drafter’s point of view would be awesome.

Thanks again for your time.

 

[MacGyverS2000]

Look at it this way... if anything is a simple calculation they would try to offload it to someone less expensive than an engineer, and if it's not a simple calculation they'll probably want an engineer doing it. Either way, it can't hurt to ask the engineer you're working with.

It's going to come down to calculations of power... what's available and what you need. There are rules of thumb as to how lighting units are laid out to get a minimum average lumen rating, with each unit requiring 'X' amount of power. As feed size goes up, so does the cost. There's a break even point that will also typically be a rule of thumb known by the engineer. If he feels like sharing...


Dan - Owner

http://www.Hi-TecDesigns.com

 

[HCBFlash]

If your company hired you to be a draftsman for electrical related drawings they should have provided you with their standards. In the absence of those, have them provide you with other drawings of their own or of example drawings. There are textbooks and/or reference books on electrical drawing standards and conventions readily available through libraries here in the U.S..

As far as lighting plans, as part of a set of blueprints for building construction goes, conduits -or more accurately raceways- are not shown, but branch circuit numbers are indicated at feed points of the particular fixtures or switches.


best of luck to you, and don't forget
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