Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This one, concerning single-core CPC and SWA cables and their CSAs, is answered by SELECT:
We would also like to know the same information for SWA/PVC/PVC...four-core cable. How can you tell its conductor size from its O/D? At present they can't be powered off to investigate, and there is no information regarding conductor size on the sheath. Is there a cable gauge that can be purchased, etc?
Answer: Normally, the cross sectional areas (CSAs) of cables are estimated using a trained eye and experience. A more accurate way may be to use a caliper type gauge for measurement. This measuring equipment may be available from individual cable manufacturers, as each manufacturer's cable may differ slightly.
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