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I am replacing a ( hanging ) ceiling fixture in the dining room and found only wires and no box ( see photos ).

There's no junction box and the wires are old and gnarly looking. The house was built in 1900, and while I believe most of the electrical has been redone, there may still be knob and tube in the ceiling.

The other fixture I just replaced in the living room had same old wiring, but a plastic box was there so it seemed fine. This looks dangerous to me, but would love to hear what you all think.

Is it just a matter of putting a box up there and pulling the wires through ?

Fixture requires a rating of 75C, is this wiring safe? Or do I need to get a pro ?

Happy to provide more pix if that's helpful. Thanks in advance.

ceiling fixture hole ceiling fixture 2 ceiling fixture hole

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    Are you sure there is not a box, i see the curved edge of a metal something but it is difficult to see. – Alaska Man May 19 '20 at 20:51
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    Yeah, looks like someone put drywall over plaster at some point, so the box is recessed somewhat. – isherwood May 19 '20 at 21:08
  • Pretty sure -- are you talking about on the left side of the first photo? That's the cable, it's got a white marking along it – Tony Zito May 19 '20 at 21:34
  • It is still too dark inside there, Is there a joist near the wires you can attach a pancake box to ? Is there space in there ? Is there play in the wires ? – Alaska Man May 19 '20 at 21:43
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    At the very least, definitely put in a plastic box. I would avoid metal because you don't want to give the illusion of a ground being available there. Mount the box to whatever joist or support the "two long screws" went into. – Carl Witthoft May 20 '20 at 15:06

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