Knob and Tube Wiring
By Sham Pathania
(SAVE MAX FIRST CHOICE REAL ESTATE INC.)
If your home was built prior to 1950, you may have a knob and tube wiring system. Though the technology is older it is still capable of carrying electricity throughout your home. There are additional factors, however, that homeowners should know about when buying or selling a home with knob and tube wiring.What is Knob and Tube Wiring?The system uses porcelain insulators (knobs) for running wires through unobstructed spaces. Porcelain tubes protect wires that run through studs and joists. The two electrical wires are wrapped in a rubberized cloth, and are run suspended through the walls. In contrast, modern systems have a third additional "ground wire" and three-prong outlets that add an extra measure of safety.When is it Unsafe?Installations have to be evaluated on a case by-case bas...