A microwave oven installed under a cabinet.

USA Installation of a Microwave Oven Over a Stove

Be careful when removing the old hood.  That same wire that is feeding the hood will be used to power an outlet for the...
Ohms Law

Electrical Terms and Equations

One Ohm = The resistance of a column of mercury (At the temperature of melting ice) of a uniform cross section of one square...

One Inch (27) Electrical Conduit Dimensions

One Inch 1″ is the trade size, not the actual dimension of electrical conduit.  Twenty seven 27 is the metric designator not the actual...
An old and a new water pipe ground clamp on an older water pipe. Note the corrosion on the old clamp and the use of an armored grounding conductor.

Grounding Electrode System

Dear Mr. Electrician: I recently hired an electrician to fix something in my very old house.  He told me that the electrical service to...

Electrical Conduit Hole Saw Sizes

Dear Mr. Electrician: I plan to install a lot of electrical conduit.  I know that I will need to drill with hole saws or...

USA Aluminum Wiring

Dear Mr. Electrician: I am planning to have the electrical service to my house upgraded. The licensed electrical contractor that I am using will be...