46 C.F.R. § 111.20-1 General requirements.
Title 46 - Shipping
Each transformer winding must be resistant to moisture, sea atmosphere, and oil vapor, unless special precautions are taken, such as enclosing the winding in an enclosure with a high degree of ingress protection. [CGD 94–108, 61 FR 28278, June 4, 1996]
Title 46: Shipping
PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS
Subpart 111.20—Transformer Construction, Installation, and Protection
§ 111.20-1 General requirements.
