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Nail plates.

Screws should _never_ be able to hit the wiring. If that's possible, someone failed to install nail plates or Smarshield sleeves.

As for the sharp corners, IMHO you should always install a raceway of some sort (everyone just uses smurf tube), then pull the fiber in afterward. It takes real effort to fuck up the bend radius of conduit.

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I was not referring to wiring going thru studs, but along studs. Nail plates are very effective for going thru studs, but often wire is ran along the side of a stud. If it is a large bundle and you don't keep it centered on the side of the stud it will be close to the surface right where a screw could miss. Of course putting some kind of shielding or sleeve could work, but that is very uncommon in house building.

Smurf tubes work great, but are not practical in some high density environments, especially a house with steel structure and I-beam joists. I used these for some locations in my house, but not all.

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