Film-Tech Forum ARCHIVE: Server to Projector wiring question.

This is topic Server to Projector wiring question. in forum Digital Cinema Forum at Film-Tech Forum ARCHIVE.

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Posted by Christopher Schaffner (Member # 6132) on 08-04-2011, 10:25 PM:

Hello all.
We are in the process of moving a server from the projectors rack, to the sound rack so its at eye level, and I was wondering, Would there be any interference if we were to run the video and network cables through the conduit channel with the power wires??

The video cables are shielded Coax, and just your standard CAT5e net cable.

This isn't completely necessary but I like things to look professional and clean.

Server is a GDC SA-2100A, and the projector is a Barco DP-2k.

Posted by Jeremy Weigel (Member # 4208) on 08-04-2011, 10:37 PM:

Running low voltage and high voltage wiring through the same conduit is usually not permitted by electrical code.

Posted by Christopher Schaffner (Member # 6132) on 08-04-2011, 10:59 PM:

That answers my question. Thank you Jeremy

Posted by Mark Gulbrandsen (Member # 72) on 08-06-2011, 03:26 PM:

Thats actually illegal in most locations. The wiring that goes along with any AC woring has to be at least 600 volt insulated wiring and the coax and Cat 5e are not. Hence, those will require a seperate conduit or flex. If you have Plenum rated wiring it could be neatly cable tied up without flex or conduit.

Mark

Posted by Steve Guttag (Member # 268) on 08-06-2011, 05:27 PM:

Watch out on cable tying Cat cables...you'll ruin their characteristic if you go too tight...same with not paying attention to the bend radii. Coax also has rules on how it must travel.

I see a lot a bad work out there.

-Steve

Posted by Mark Gulbrandsen (Member # 72) on 08-06-2011, 08:11 PM:

Steve is correct about this. The radius of the bends should be at least be 4X the diameter of the cable. Set your cable tie cutter gun to it's lowest setting for the size tie you are using and preferably use wider cable ties. The extremely narrow ones seem to do the most damage. The tie should only keep the bundle together... it should not squeeze the insulation of the cables. Follow 1:1 color scheme on your connectors. The bend for coax varies depending on the coax itself. You can check the manufacturers specs on this or at a minimum you could follow the rules for ethernet bend radius you'll probably stay out of trouble...

Mark

Posted by Christopher Schaffner (Member # 6132) on 08-06-2011, 09:45 PM:

Okay, Thanks for the info. I suppose the original conduit for the old 35mm's analog sound would work great? it doesn't have sharp bends in it.

Posted by Mark Gulbrandsen (Member # 72) on 08-08-2011, 05:07 PM:

As long as you can get the connectors through the conduit it is large enough! Stagger them if necessary but try to pull them all at one time.

Mark