I opened a exterior wall and discovered my 1956 house wiring has some cloth insulated wire. The cloth wires I discovered are wrapped around a stud and a few have copper exposed, looks like a bird or rodent chewed through it to the copper.
I pulled the wires away from the stud and wrapped them (separately) in electrical tape.
Any suggestions on the next step? Is there a device that can test the integrity of a wires insulation?