What do numbers on electrical cable mean?
They refer to the number and types of wire inside the cable. For example, 14-2 means the cable has two 14-gauge wires inside. 12-3 G means the cable... More »
What do the numbers mean on electrical wire?
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A wire marked 14/2 means that it's a 14-gauge wire and it contains two wires inside the insulated jacket.
What do the teeth-per-inch numbers mean on sawblades?
The numbers indicate the number of points per inch on a saw... More »
What do the teeth per inch numbers mean on sawblades?
The numbers indicate the number of points per inch on a saw... More »
What do the numbers—such as 8-32—mean on a machine screw?
The first number is the diameter. The bigger the number the bigger the screw. The second number is the number of threads per... More »
How is UF electric wire different from regular Romax cable?
If you lay cable underground, it must be UF (underground feed) cable, which has each individual wire insulated and has plastic wound around the... More »
I am putting a couple of more outlets in my garage can I use 14-guage wire?
While 14-guage wire is the minimum for most houses wiring, it can only be used for 15-amp circuits. Number 12-gauge wire is recommended for general... More »
How do I use a wire nut?
Strip off about ½ inch of insulation from the wires you want to connect. Hold these wires next to each other and twist clockwise. Screw on the... More »
What tool should I use to strip the plastic sheathing off wire?
A combination wire stripper tool has openings that fit different sizes of wire. When a wire is put into the correct one and pulled it will remove... More »
What do the colors of the plastic insulation mean on wires?
They are designed to indicate their use, but be careful, because they are not always hooked correctly. Hot wires, those carrying current at full... More »
What does gauge mean?
Wires have size numbers that express their diameter. These are even numbers from 0 to 18, and smaller numbers indicate larger diameters that can... More »
How to Run Wire Through Walls
One of the best reasons for mounting your new flat panel TV on the wall is the sleek and stylish look that it gives the entire room. Just look... More »
Adding an Electrical Outlet: TV Hook-up (Part 2)
In the first video on running electrical wire and cable through the wall, we ran wires up to a spot directly behind where our flat-panel TV is... More »
Installing an Electrical Outlet
Changing an electrical outlet/receptacle may seem intimidating, but it’s an easy project, as long as you follow the proper procedures for working... More »
