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Example:
we have one cable no identification size,
1. Inner strip the cable
2. Count The wires
3. Measure using caliper 1 pcs of wires/conductor to know the diameter
see below picture:
the formula are:
d² x n x (π/4)
= 0.23² x 7 x 0.785
= 0.290 mm
for make sure what size of cable, you must convert from mm to AWG
Example:
24 AWG = 0.200 mm
22 AWG = 0.324 mm
20 AWG = 0.519 mm
from:Table IPC Standar or www.ipc.org
0.290 mm is closly to 22 AWG size of cable
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