Electrical vocabulary
A standardized system of designating wire size based on a wire diameter.
American Wire Gauge (awg)
A hand tool with fixed or movable jaws that can be used to turn nuts, bolts and other fasteners.
Wrench
These fasteners are used to fasten sheet metal or other materials to hollow surfaces.
Toggle bolts
The Atoms in these materials have virtually no free electrons. They resist the flow of electrons.
Insulators
This type of air pushes against and mixes with the air that is already in the room
Primary air
A unit used to measure the flow of electric current.
Ampere
This tool consists of a handle with a socket head on one end
Socket wrench
These fasteners got their name because they tap their own mating threads as they are driven into the material.
Sheet metal screws, Self tapping
This is the name of the electrical property that expresses how much a material resists the flow of electrons
Resistance
Airflow through these is almost always caused by the pulling action of a fan or a blower.
Return air ducts
An electric current in which the direction of electrons flow reverse or switches at regular intervals.
Alternating current (A.C)
A tool used tool used draw straight and slightly curved lines
Scriber
These fasteners often used with sheet metal, are usually made of copper, brass, and aluminum. The most common head shapes are flat, button and counter-sunk,
Rivet
This type of circuit has the same current flow throughout all the electrical loads in the circuit. if one of the devices is broken or does not conduct, the circuit is broken.
Series circuit
These are passageways that circulate and distribute air to and from a heated or conditioned space.
Ducts
An electrical circuit that is complete, providing a continuous path for electrons to flow.
Closed circut
A floor machine used for squaring, trimming, and cutting sheet metal into various shapes and sizes.
Squaring sheer, Foot shear.
Common types of these fasteners are threaded externally. Common types include carriage and machine.
Bolts
This word is used to describe any device that consumes electricity to perform work. Such as a lightbulb.
Electrical load.
The duct of this type of material is made of compressed fiberglass material that can be easily cut with a knife.
Ductboard
A material or substance that allows electrons to flow easily.
Conductor
A machine used for making cylindrical and round pipe.
Sip roll former , roll forming machine
This type of fastener is used to fasten stranded wire to various terminals or to connect two lengths of stranded wire.
Solderless terminals.
This type of electricity is an imbalance of electric charges in a material, which can be caused by contact between two surfaces.
Static Electricity.
They are located on the supply side of the duct system. they spread the air leaving the duct more uniformly than registers.
Diffusers