Measuring cross-sectional area of a cable

AI Thread Summary
To measure the cross-sectional area of a circular cable, the formula A = πr² is used, where r is the radius. A diameter of 19.5 mm gives a calculated area of approximately 298.49 mm², which conflicts with the tag showing 10 mm². This discrepancy may indicate that the 10 mm² refers to the cross-sectional area of each individual copper conductor within a multi-strand cable, rather than the entire cable. The discussion also raises a question about the diameter of a cable with a 6 mm² cross-sectional area. Accurate measurements and understanding of cable construction are crucial for proper calculations.
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How do we measure cross-sectional area of a cable (obviously circular)?
For example, diameter of a cable as measured from vernier caliper was 19.5 mm. If we apply A = pi(3.14) r2, answer is 298.49 mm square but tag on said cable is showing Area = 10mm square?
Please explain.
 
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No idea. Maybe this was the cross-section of each copper conductor in the cable ?
Or a typo ?
 
Is it a multi-strand cable, i.e. each strand has a CSA of 10 mm²?
 
Its a 5-core cable actually. Please let me know whether I am calculating cross-sectional area of cable correctly? You can help me by telling that what will be diameter of a 6 square mm cable?
Thanx
 
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