The 1st property wiring guidelines showed up around the turn of the century, when Terrell Croft wrote the United States Electricians Handbook. Crofts books laid outed very early wiring strategies. One of Croft's rules was that electrical knob and tube ought to regularly be gone through, certainly never over your home framing. The problem along with operating wiring over framing is actually that it could obtain hit, gotten, and damaged.