A homeowner is finishing their kitchen remodel. They have installed three countertop receptacles, each 5 feet apart, supplied by a 20A general purpose circuit. None of these receptacles are GFCI protected. The refrigerator is plugged into a GFCI-protected receptacle on a separate 15A circuit. The kitchen's general lighting is on a 15A circuit with no AFCI protection.

In a new bathroom installation, a 15A general lighting circuit powers the vanity light and a new fan/light combo unit. The single duplex receptacle in the bathroom is also connected to this same 15A circuit.

During a basement finishing project, an electrician installed several non-IC rated recessed lights. The insulation was pushed directly up against the sides and tops of the light housings. In one of the lighting circuit's junction boxes (a standard 4x4x1.5 inch square box), there are 10 #14 AWG conductors joined with wire nuts, supplying power to multiple fixtures.

A new 200A residential service is being installed. The service entrance conductors are 3/0 AWG copper. The grounding electrode conductor (GEC) is #6 AWG copper, run in PVC conduit from the meter base to a single 8-foot ground rod. The existing metal water pipe is properly bonded, but the newly installed metal gas piping system, which enters the basement near the service panel, has not been bonded to the grounding electrode system.

An outdoor standard (non-WR/TR) receptacle is installed on the side of a house, covered by a weatherproof cover. To power a new shed, an electrician buried a standard NM-B (Romex) cable directly in the ground from a junction box inside the house to the shed. Mid-way to the shed, the NM-B cable was spliced to an extension cord that runs the rest of the way to a light fixture inside the shed. The splice was wrapped in electrical tape and buried under the lawn.

In a residential garage, the two general-purpose 15A receptacles are connected to a standard circuit breaker with no AFCI or GFCI protection. The garage door opener is powered by an extension cord plugged into one of these receptacles, with the cord draped across the ceiling joists to reach the opener.