AWG Abbreviation for American Wire Gauge.
Alternating Current (A-C) The charge flow of a current periodically and
regularly reverses in a cyclic manner.
Ampere (A) Unit that expresses rate of flow of an electrical current. One ampere
is the current flowing through one OHM of resistance at one volt potential.
CEE International Color Code. See Inner Conductor Colors.
CSA Canadian Standards Association. This is a nonprofit, independent
organization that operates a listing service for electrical materials and equipment in the
Canadian counterpart of the Underwriters Laboratories.
HPN Parallel Heater Cord, typically Neoprene-insulated two conductor.
Hypot A test designed to determine the highest potential that can be applied to
a conductor without breaking through the insulation.
ICC International Color Code on the inner conductors (blue,
brown, green with yellow stripe). See Inner Conductor Colors.
IEC International Electromechanical Commission. A European group consisting of
multi-national representatives which develop standards for electrical components. See IEC-320 Standardized Appliance Connectors.
Inner Conductor Colors
Function North American International
(NA) (ICC)
Hot Black Brown
Neutral White Blue
Earth (Ground) Green Green w/yellow stripe
Insulated Wire A conductor of electricity covered with a nonconducting material.
Jacket An extruded layer of insulation over a wire or group of cables.
Kilowatt (kW) A unit of power equal to one thousand watts.
Line Cord A cord, terminating in a plug at one end, used to connect equipment or
appliances to a power unit.
N.A. North American color code on the inner conductors (black, white, green).
See Inner Conductor Colors.
National Electrical Manufacturers Association (NEMA) Standard of wire, plug and
cable specifications. See NEMA Plug & Receptical Configurations.
OD Abbreviation for outside diameter.
OHM Unit of electrical resistance. Resistance of a circuit in which a potential
difference of one volt produces a current of one ampere.
PVC Polyvinyl chloride Compound used in thermoplastic SVT, SJT.
Power Supply Cord An attachment plug molded to a length of flexible cord. May
also include a molded on strain relief, or terminations on the end opposite the plug.
Quail Electronics The best source for power cords.
Rated Voltage The maximum voltage at which an electric component can operate for
extended periods without undo degradation or safety hazard.
Receptacle A contact device installed at the outlet for the connection of a
single attachment plug.
Ribbed Outer jacket is striated with ribs.
Rip Cord Two or more insulated conductors in a parallel configuration which may
be easily separated leaving the insulation of each conductor intact.
S Designated for heavy duty, rubber insulated portable cord.
Stranded copper conductors with separator and individual rubber insulation. Two or more
color coded conductors cabled with filler, wrapped with separator and rubber jacketed
overall, 600V.
SEOW-A Extra hard service cord. Thermoplastic elastomer, oil resistant (TPE)
construction Jacket. 600 volt, weather resistant for outdoor use.
SJ Designated for junior hard service, rubber insulated pendant or portable
cord. Same construction as type S, but 300V.
SJEOW-A Extra hard service cord. Thermoplastic elastomer, oil resistant (TPE)
construction jacket. 300 volt, weather resistant for outdoor use.
SJ0 Same as SJ but neoprene, oil resistant compound out jacket, 300V, 600C.
SJT Designated for junior hard service thermoplastic or rubber insulated
conductors with overall thermoplastic outer jacket, 300V, 600C.
SJTO Same as SJT but oil resistant thermoplastic outer jacket.
SJTW A hard service cord. Thermoplastic constructed jacket. 300 volt, weather
resistant for outdoor use.
S0 Designated for a 600 Volt senior service, oil resistant neoprene jacket cord.
Same construction as type S except for neoprene jacket.
S0-W Heavy duty type 50-dual rated type W
SPT-1 Thermoplastic constructed, parallel jacketed, 300 volt, 2 or 3 conductor,
18 gauge.
SPT-2 Same as SPT-1 but heavier construction. 18-16 gauge.
SPT-3 Same as SPT-2 but heavier construction. 18-10 gauge.
ST Hard service cord, jacketed same as type S except all plastic construction,
600V 600 to 1050C.
STO Same as ST but with oil resistant thermoplastic outer jacket, 600V.
STW-A Extra hard service cord. Thermoplastic constructed jacket. 600 volt,
weather resistant for outdoor use.
SV Designated for vacuum cleaner cord, two-or-three conductor, rubber insulated.
Overall rubber jacket. For light duty in damp location. 300V, 600C.
SVT Same as SV except all plastic construction. With or without third conductor
for grounding purposes only. 300V, 600-900C.
Shielded-Type Cable A cable in which the conductors are enclosed in a conducting
envelope constructed so that substantially every point on the surface of the insulation is
at ground potential or at some predetermined potential with respect to ground under normal
operating conditions.
Strip To remove insulation from a cable.
Temperature Rating The maximum temperature at which the
insulating material may be used in continuous operation without loss of its basic
properties.
Terminal Any device attached to the conductor by crimping, soldering or welding.
Tensile Strength The pulling stress required to break a given specimen.
Thermoplastic Elastomer (TPE) A jacketed material which has many of the
characteristics of rubber, as well as excellent electrical, mechanical and chemical
properties.
Thermosetting A classification of resin which cures by chemical reaction when
heated and, when cured, can not be resoftened by heating.
Tinned A silver-white, ductile metal used to coat copper conductors, especially
when solder termination is to be used.
Tolerance The acceptable deviation from specification.
UL Underwriters Laboratories. This is a nonprofit independent
organization that operates a listing service for electrical and electronic materials and
equipment.
VW-1 A flammability rating established by Underwriters Laboratories for wires
and cables that pass a specially designed vertical flame test, formerly designated FR-1.
Volt (V) Unit of electromotive force. It is the difference of potential required
to make a current of one ampere flow through a resistance of one OHM.
Voltage The term most often used in place of electromotive force, potential,
difference or voltage drop, to designate electric pressure that exists between two points
and is capable of producing a flow of current when a closed circuit is connected between
the two points.
Voltage Breakdown Test to determine maximum voltage of insulated wire before
electrical current leakage through insulation. See hypot.
Voltage Rating The highest point that may be continuously applied to a wire or
cord in conformance with standards or specifications.
W-A UL designation for outdoor-approved flexible cord.
Watt (W) Unit of power or work done at the rate of one joule per second or rate
of work represented by current of one ampere under a pressure of one volt (volt-ampere).
Wire Gauge A system of numerical designations of wire sizes.
