Engineering Utilities 1 - Conductors
Engineering Utilities 1 - Conductors
Engineering Utilities 1 - Conductors
5 CONDUCTORS
WIRE
• May be made of copper or aluminum metal, both of which conducts electricity, but copper is a
much better conductor than aluminum and a safer option. When electricity flows from one
point to another through something such as an electrical wire, it is called conductivity
BUSES
• A bus, sometimes called a bus bar, is an electrical conductor that serves as a
common connection for two or more electrical circuits.
• Solid bars typically used for power distribution.
• Commonly found in panel boards, switchboards, and other power distribution
equipment.
CONDUCTOR
MATERIALS
• In physics and electrical engineering, a conductor is an object or type of material that allows the
flow of charge (electrical current) in one or more directions. Materials made of metal are
common electrical conductors.
• Silver is the best electrical conductor material because it has the least resistance of common
materials. The same as Gold.
• Copper and Aluminum conductors are used in building conductor (wiring) installations as a
compromise between good conductivity and economy.
CONDUCTOR INSULATION
• It is a process by which a conductor surrounded by insulation to prevent current leakage
or short circuits. Also known as insulated wire.
CABLE
• May be made of copper or aluminum metal, both of which conducts electricity, but copper is a
much better conductor than aluminum and a safer option. When electricity flows from one
point to another through something such as an electrical wire, it is called conductivity.
• It contains more than one conductor bundled together in a factory assembly of wires.
• An outer sheathing encases and protects the conductor, simplifying installation of multiple wiring.
• Nonmetallic-sheathed Cable – is
classified as type NM or NMC. NM is
used in dry, indoor applications.
CORDS
• Cords are made of stranded conductors within a flexible insulated sheathing materials.
• They are designed for flexibility and bending.
• They are used on power tools, large stationary equipment, or detachable computer power cords.
CONCEALED KNOB-AND-TUBE
WIRING
• It consists of an old style wiring technique using insulated conductors strung between glass or porcelain knobs
and tubes.
• K&T wiring is installed in walls or ceilings so it is concealed from view when finish materials such as plaster
is applied.
• A form of K&T wiring is still used to provide temporary lighting at the construction site, at roadside stands,
and at carnival tents.