Externally, the jollity of aged men has much in common with the mirth of children; the intellect, any more than a deep sense of humour, has little to do with the matter; it is, with both, a gleam that plays upon the surface, and imparts a sunny and cheery aspect alike to the green branch and grey, mouldering trunk.
1) Knob and tube wiring is two-stranded â with a hot wire and a neutral wire only â it uses no ground wire. There is absolutely no protection whatsoever when a fault occurs.
In our opinion, rewiring the home is the only solution that correctly addresses knob and tube wiring. Other solutions like eliminating it only where it is open to view (in basements and attics), or installing GFCI receptacles, are band-aid solutions that we do not recommend.