|
SINGLE |
COTTON | 73.8 104.5 151.4 202.0 298.8 418.0
|
DOUBLE |
COTTON | 46.19 64.30 70.58 125.9 166.3 225.6
|
SINGLE SILK | 144.70 217.8 342.1 489.0 721.1 1062.0
---------------------------------------------------------------------

A.W.G. B & S | 38 39 40
--------------------------------------------
DIAMETER |
Mils | 3.965 3.531 3.144
--------------------------------------------
AREA |
Circular Mils | 15.72 12.47 9.89
--------------------------------------------
DIAMETER OVER |
INSULATION |
SINGLE |
COTTON | 9.865 9.431 9.044
|
DOUBLE |
COTTON | 14.165 13.731 13.344
|
SINGLE SILK | 6.265 5.831 5.344
|
DOUBLE SILK | 8.165 7.731 7.344
--------------------------------------------
TURNS PER |
LINEAR INCH |
SINGLE |
COTTON | 95.000 100.700 106.000
|
DOUBLE |
COTTON | 66.80 68.80 71.20
|
SINGLE SILK | 151.05 163.04 177.65
|
DOUBLE SILK | 116.85 122.55 129.20
--------------------------------------------
TURNS PER |
SQUARE INCH |
SINGLE |
COTTON | 9025.0 10140.5 11236.0
|
DOUBLE | 4462.2 4733.6 5069.8
COTTON |
|
SINGLE SILK | 22820.0 26700.0 31559.0
|
DOUBLE SILK | 13655.0 15018.0 16692.0
--------------------------------------------
OHMS PER |
CUBIC INCH |
SINGLE |
COTTON | 567.0 811.0 1113.0
|
DOUBLE | 305.5 409.8 545.5
COTTON |
|
SINGLE SILK | 1557.0 2266.0 3400.0
-------------------------------------------

If the length and the depth of the winding space of the coil as well
as the diameter of the core are known, it is not difficult to
determine how much bare copper wire of a given size may be wound on
it, but it is more difficult to know these facts concerning copper
wire which has been covered with cotton or silk. Yet something may be
done, and tables have been prepared for standard wire sizes with
definite thicknesses of silk and cotton insulation. As a result of
facts collected from a large number of actually wo