Today, we are going to discuss the "What is the AWG standard for electric wire and what is AWG size?This is a note for "AWG" (American Wire Gauge Standard), which seems to vary somewhat depending on the products handled by the wire manufacturer. So, I will leave a note to help you understand how to understand AWG and the contents of the wire a little with examples.
What is AWG?
Meaning: U.S. Wire Gauge Standard AWG is "Circular, Solid, Non-Ferrous Metal, Electrical Conductor" Wire UL Standard
English: American Wire Gauge
Use: AWG is widely used to indicate the thickness of conductors
Selection: Select an AWG size that is protected by an insulator that can withstand the operating temperature range and environment and still meet the ratings.
AWG standard features opposite numbers and diameter sizes
The AWG standard is characterized by the fact that the larger the number, the smaller the diameter. For typical UL and AWG standard sizes, body diameters, and electrical resistance,
Commonly referred to as "AWG24" in the UL standard for wire insulation
Example "UL3398 AWG20
UL3398: Non-lead irradiated cross-linked flame retardant PE wire
RoHs regulation: Compliant
Rating : 150°C/300V
Insulator hue: black, white, red, green, yellow, blue, brown, orange, gray, purple
Insulator : Polyethylene resin (PE)
Meaning of AWG20
Insulator outer diameter: 1.76mm
Insulator thickness: 0.41mm
Conductor diameter: 0.94mm
Resistance of conductor: 38.3Ω/Km
Applications: Wires for internal wiring of equipment
Image: Borrowed from Trusted Hitachi Metals, Ltd.
Example "UL1332 AWG20
UL1332: FEP wire with excellent flame, heat, cold, oil, chemical and solvent resistance
RoHs regulation: Compliant
Rating : 200°C/300V
Insulator hue: black, white, red, green, yellow, blue, brown, orange, gray, purple
Insulator : Fluoropolymer (FEP)
Meaning of AWG20
Insulator outer diameter: 1.68mm
Insulator thickness: 0.36 mm
Conductor diameter: 0.96mm
Resistance of conductor: 34.1 Ω/Km (tin plating)
Resistance of conductor: 32.1Ω/Km (silver plated)
Image: Borrowed from Trusted Hitachi Metals, Ltd.
What is UL Standard?
Establishes standard criteria for product functionality and safety, formulates evaluation methods, and conducts evaluation tests. When a product passes the tests, it is authorized to use the UL Certification Mark. In addition, samples that meet safety standards are authorized to display the UL Mark "only if they are similar in form and configuration to the product.
What is an insulator?
Insulators are,A generic term for a substance with properties that make it difficult to conduct electricity or heat.
Main insulator material
PVC : Polyvinyl chloride
FEP ： Fluoropolymer
ETFE ： Fluoropolymer
PE : Polyethylene resin
What is irradiation cross-linking?
Synthetic resins and other materials become hard when bonds are formed across molecules, so "irradiation and cross-linking" is used as a method of making connections between molecules to form bridges between them.
That's it.