The spines of a few National Electrical Code books

Free National Electrical Code

Blank opening for an outside light next to a front door

Old Exterior Light Fixture

An incorrectly installed plastic electrical switch box with a broken screw connection point

Repair A Broken Electrical Box

Depicted is a two inch grounding or bonding bushing with an attached lay-in lug that is used to connect a grounding wire to a metal electrical conduit or fitting

How To Ground An Outlet

Outdoor light fixture mounted with an indoor electrical box, duct tape, and caulk

Repair An Outdoor Light Fixture

Recessed lights before being removed for the installation of pendant lights

Change Recessed Lights

Front and Rear of an Old Style Ceiling Electrical Pancake Box for Knob and Tube Wiring

Replace Old Ceiling Pancake Box

Three very old non-grounding type electrical receptacle outlets

To Ground A Two Prong Outlet

A Four-Way Switch Wiring Diagram depicting the LINE and the LOAD in two separate switch boxes. A two conductor cable with a grounding conductor supply's power from the source to the first three-way switch. From the first switch a three conductor cable goes to the first four-way switch and then to the next four-way switch and ends at the last three-way switch. The white neutral conductor is spliced through each switch box until it is connected to the white LOAD wire in the two conductor cable that goes to the lighting LOAD or ceiling fan. The black LOAD wire terminates on the 3-way switch common screw terminal. Travelers are connected on the 4-ways according to the manufacturers' instructions.

Four-Way Switch Diagrams

Bare Kitchen walls after all old cabinets, counter top, and appliances have been removed

Extend Kitchen Electrical Outlets

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