Our sub-supplier has used incorrect wire colors (size AWG #12) for 24 VDC relay control circuits - red/white instead of blue (as per NFPA 79). Unfortunately, this was not caught during acceptance, and the large piece of equipment was shipped overseas to the end user, where the incompliance was discovered. Is there any "legal" way to re-identify wire colors to blue color without a massive wire replacement effort? A reference to supporting documents would be greatly appreciated.
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