Featured Terms
What do a "bug" and a "cherry" have in common?
They are both electrical slang terms!
Curious about what these and other slang terms mean?
Scroll through our collection of slang terminology used in the electrical industry!
Whether you are an electrician, contractor, or just someone trying to understand what your local electrician is jabbering about, use the glossary to learn trade slang and electrical jargon.
Baffled by a term you just overheard?
Type it in the search box at the top and flip the switch!
The Edge Beam Clamp (EC) mounts pipe parallel to the beam. Associated products are the Edge (EC) and Right Angle (RC) clamp. Comes in sizes from 1/2" to 3" conduit.

Large grooved joint pliers with right angle teeth for excellent holding ability.

The steel conduit hanger is used to secure 1/2" to 4" rigid (GAL) or EMT conduit to some type of support using the hole on top of the hanger. Typically, the pipe is suspended from strut or directly from the concrete using a piece of threaded rod but the hanger is also used to attach conduit directly to an insulator or some other surface. Manufactured by Steel City, Erico (Caddy), Bridgeport and others; the hanger is available with or without the lower bolt and nut. Originally invented by Minneralac in 1904 as the Standard Conduit Hanger.
"I hit my head on another pain hanger."

Red wire marker dispenser with 10 flip-top slots holding numbers 1-49, or letters A-Z or Colors.

An adaptor used to affix a lighting fixture directly to an electric box when the fixture and electrical box mounting holes do not line up, (see also 'Fixture Bar').

Typically though of as the goo used in compression and split-bolt connections where aluminum wire is used, the PENETROX product is an oxide-inhibiting grease designed to create an air-tight and moisture resistant joint. The goal is to prevent the oxidation or corrosion of the metal products used in the electrical connection. Depending upon the type of metals found in the joint, you would use a specific version of the product containing suspended particles designed for that metal. Type "A" contains Copper particles and is used for Aluminum to Copper or Aluminum to Conduit (Steel). Type "B" contains Zinc particles and is used where the metals are all aluminum. It has found favor in a number of industries, such as Ham Radio operators, where the grease acts as a lubricant for threaded connections and reduces the chance of them seizing down the road.
