American Wire Gauge table

The specification of wires can be confusing. All wires diameters are based upon the American Wire Gauge (AWG) table, published in the early 20th century. The metric countries directly converted these dimension (inches) to millimeters and created what is now the lEC R20 wire table. This is shown below in both measurement systems in Table F-t. 

Table 2.34 American Wire Gauge Size Comparison Chart...

Reference tables list resistivity and conductivity of various materials. Equation (12-2) shows that resistivity and conductivity are reciprocals, with conductivity the more commonly used property. Table 12-1 gives resistivity for selected American wire gauge copper wire sizes. 

Thermocouple Size. Many factors can confound the solder-joint temperature measurement process, regardless of whether the thermocouple bead is properly deployed between lead and pad. Among these are the size of the bead and the thermal mass of the thermocouple assembly. In general, the use of finer-gauge thermocouples such as 30 to 36 American Wire Gauge (AWG) (see Table 47.1) is recommended. This will permit insertion between lead and pad even at very fine lead and pad pitches. Ideally the thermocouple bead will be completely within the solder joint to be measured. 

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See also in sourсe #XX -- [ ]

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