Question

How many strands of small-diameter copper wire does stranded copper wire normally contain within its insulating jacket?

Answer 1

The lowest number of strands usually seen is 7 ... one in the middle
and 6 surrounding it.

The next level up is 19, which is another layer of 12 strands on top
of the 7.

After that the number varies, but 37 and 49 are common, then in
the 70 to 100 range (the number is no longer exact).  Even larger
numbers than that are typically found in very large cables.

Answer 2

The small-diameter copper wire has 16-19 stranded copper wire normally contain within its insulating jacket.hope i helped :)