The correct answer isD. API RP 14FZ. This document is specifically intended for thedesign and installation of electrical systems on fixed and floating offshore petroleum facilitieswhere equipment may be located inunclassified areas and hazardous classified areas identified as Class I, Zone 0, Zone 1, and Zone 2. The key clue in the question is the use of theZoneclassification system. In API and offshore electrical practice,API RP
14FZaddresses the offshore application of the zone-based hazardous area approach.
By contrast,API RP 14Fis associated with offshore electrical system guidance using the olderdivision- basedclassification approach rather than the zone terminology.NFPA 70is the National Electrical Code and is broader in scope; it is not the specific offshore petroleum recommended practice asked here.IEEE 841relates to severe-duty squirrel-cage induction motors and does not cover complete offshore electrical system design and installation requirements.
For source inspectors, recognizing the correct governing document is important because inspection and surveillance activities must verify compliance against the applicable design basis, hazardous-area classification method, and purchaser specification.