1. No Grounding Protection for Modern Appliances Modern appliances require grounding protection to safely operate, but knob-and-tube systems provide no grounding path. Without this protection, ...

Explanation: Section 210.8(B)(7) now requires GFCI protection for receptacles that supply fixed or stationary appliances when either the receptacle or the appliance is located within 6 ft of the sink.

Older houses were never wired for a world of air conditioners in every bedroom, 240‑volt induction ranges, gaming PCs, and always‑on chargers. When you push that kind of demand through a system ...