Title 46
SECTION 111.20-1
111.20-1 General requirements.
§ 111.20-1 General requirements.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]