knob-and-tube wiring See electrical terms.
knot (nœud, m.) That portion of a branch or limb embedded in the tree and cut through in the process of lumber manufacture. Knots are classified according to size, form, quality and occurrence.
Knob-and-tube wiring " A common form of electrical wiring used before the Second World War. When in good condition it may still be functional for low amperage use such as smaller light fixtures. Read More...
KNOB-AND-TUBE WIRING: oldest type of electrical wiring; the knobs serve as insulators, and the ceramic tubes isolate the wiring from neighboring wood.
LATH: perforated base for application of plaster; formerly wood, now usually metal.
Knob-and-Tube wiring uses supply and return wiring that are separated by 6 to 16 inches, depending on travel direction relative to installed structural lumber.
After they bought their 1897 Victorian, Jim and Marissa found that they would not only need to replace their knob-and-tube wiring, but would have to heavy up their service in order to power their new 60" flat screen TV.
Related Articles ...
I counted what appear to be at least 6 additions to the original house. It seems that they built it one room at a time. There is still knob-and-tube wiring in the place, ...
 See also: Wiring, Electrical, Light, Wall, Building
|
