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Fiber would be ideal, but... Bear in mind that terminating fiber is more exacting and more expensive. It requires special equipment and special skills. You can't just cut fiber with a pair of wire snips and crimp a plug on the end of it. The ends have to be angled and polished, and it sucks when you poke the little fibers in the ends of your fingers, etc. ...


2

Your best bet is to do this with fiber optics - copper networks between buildings are notoriously prone to lightning damage. I used to have a bunch of those; life after thunderstorms is much calmer with fiber optic links. Regardless of copper or fiber, be sure to only use exterior/wet location rated cable - all exterior conduits are defined as "wet ...


1

Any plastic type back boxes should be lined on the external side with fire resisting material. A fire resisting putty is available for metal back boxes you should not use open back boxes in fire walls. seal the open end of conduits with FR putty


3

NEC Article 362 I've copied the NEC portions that cover corrugated HDPE (High Density Polyethylene) conduit for your reading pleasure. The NEC differentiates between corrugated and non corrugated HDPE conduits by referring to corrugated HDPE as ENT and non corrugated as just HDPE. Non corrugated HDPE is not allowed at all in any buildings, whereas ...


2

It is okay to drill from below as long as you know, for a fact that you are not going to hit ANYTHING, otherwise go into the attic. The conduit can run on the floor of the attic but I would use a two hole strap and get it above the insulation . I would use a plastic pull box with a plastic cover, the backless may not give you the support that you need when ...


2

I'm not a fire expert, but I doubt fire will actually spread through the conduit. Toxic fumes, sure, but not fire (unless the conduit is really short). Flames will, however, quickly jump through a hole in a 1 1/2" - 3" thick barrier. If you really want to take fireblocking to the extreme, you could seal the ends of the conduit around the cables with ...


1

When it comes to data (Cat6) cable it in not so much about the number of wires you can fit in to the conduit, because the more you get in the conduit the more the speed of the information could degrade. I have always put no more then 4 Cat6e in a 3/4in Conduit. So pick the best cable for your job and then the correct size of conduit or run more then one ...


1

This depends on whether you are using pre-assembled cables or not. The following images were made using The Engineering Toolbox's Smaller Circle in Larger Circle Tool to find the optimal packing. If using bare cable (No Connectors) Using a 6.5mm (0.256) Diameter cable, you can fit only 5 cables per conduit. However, this assumes the cables are perfectly ...


2

If you're following National Electrical Code, you'll need to know the actual size of the cable. In the Notes to tables section of chapter 9, there are two important notes. (5) For conductors not included in Chapter 9, such as multiconductor cables,the actual dimensions shall be used. (9) A multiconductor cable, optical fiber cable, or flexible cord ...



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