Wire gauge is a measurement of wire diameter. This determines the amount of electric current a wire can safely carry, as well as its electrical resistance and weight. Dimensions of the wires are given in ASTM standard B 258. Ohms per km, Maximum amps for chassis wiring.

Generally speaking, the smaller the gauge number, the thicker the cable.

This form of measuring cable thickness is used . American Wire Gauge (AWG) versus square mm cross sectional area. Standard Wire Gauge Conversions. What wire size and circuit size is proper for your installation is determined by several factors, including the planned load on the circuit, the number of outlets or light fixtures, and the length of the circuit.

What is critical, though, is that the wire gauge. The gauge of a piece of wire refers to its diameter. The larger the diameter of the wire, the smaller its gauge number.

Useful Charts, Wire Gauge to Inches and Millimeters Conversion.

Gauges stocked are highlighted below in bold. Diameter information in the table applies to solid wires only. Stranded wire gauges should be measured by calculating the equivalent cross sectional copper area.

First, measure the bare . The term wire gauge refers to the thickness of a wire. There are two major standards for describing wire gauge , Metric Wire. For a particular gauge, it has a set diameter and cross- sectional area.

When winding wire around for an inductor, coil, or transformer it is handy to know how thick the wire will stack up, which increases by wire . AWG, mm , AWG, mm , AWG, mm , AWG, mm 2. When working with jewelry wire, it is very important to understand the basics of wire gauge , hardness, and material and how these factors affect your designs. Today we will straighten out some confusion in the wire gauge measuring systems before we move on to wire hardness and choosing the right wire . This chart is designed to help you measure the size of wire your looking to purchase in terms of thickness. Used in this video turorial:. How to Use a Wire Gauge Tool.

This stainless steel gauge is excellent for measuring wire thickness. One side of the tool is labeled in the standard wire gauge with the millimeter equivalents on the opposite side. Will measure wire 0-gauge .

Southwire electrical cable with copper electrical wire.