§ 39.253.  Deteriorating agencies.

 (a)  Suitable guards or enclosures shall be provided to protect exposed current-carrying parts of motors and the insulation of motor leads when installed directly under equipment or in other locations where dripping oil, excessive moisture, steam, vapors, chemicals, or similar injurious agents exist.

 (b)  The metal frames and other exposed noncurrent-carrying metal parts of equipment in these locations shall be permanently grounded. Reference should also be made to §  39.197(c) (relating to grounding).

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