Running conduit near knob and tube wiring
You could use "smurf tube" (Electrical Nonmetallic Tubing) or rigid PVC to have a non-conductive conduit. Be sure to bond any metallic conduit that is separated by such non-metallic conduit, or just use nonmetallic the whole way with ground wires. I suspect you are not supposed to contact the K&amp;T in any case and should be securing the wires or conduit to prevent such contact.