I need a verifiable method (what I mean is documentable - I will have to show where I got my equations) for calculating the OD of a bundle of cables. I have looked everywhere I know to look. Can one of you smart people help me out?

- Thread starter mityeltu
- Start date

I need a verifiable method (what I mean is documentable - I will have to show where I got my equations) for calculating the OD of a bundle of cables. I have looked everywhere I know to look. Can one of you smart people help me out?

- Location
- Illinois

Any ideas?

There's bound to be some kind of book out there that has this in it. I just don't know where to look.

- Location
- Illinois

- Location
- West Chester, PA

I just took a CEU course in stranded conductors that offered these formulae;

Why not measure the circumfrence and divide by ∏?

These assume all strands in the bundle are the same diameter though. They might serve as a rough approximation if you used the weighted average conductor diameter, then confirm with the CAD solution.?RedVector.com said:The number of layers in a concentric stranded conductor can be estimated based on the

number strands in the conductor using the following formula,

Nlayer = {(sqrt [(12*NStr)-3] –3) / 6} +1

The overall conductor diameter is based on the number of strands in the conductor and

the diameter of those strands. The formula is,

DiaCond = DiaStr * (2 * NLayers – 1)

Why not measure the circumfrence and divide by ∏?

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