§ 75.703-2. Approved grounding mediums.
70 words·~1 min read·
/us/cfr/t30/s§ 75.703-2·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
For purposes of grounding offtrack direct-current machines, the following grounding mediums are approved:
(a)The grounded polarity of the direct-current power system feeding such machines; or,
(b)The alternating current grounding medium where such machines are fed by an ungrounded direct-current power system originating in a portable rectifier receiving its power from a section power center. However, when such a medium is used, a separate grounding conductor must be employed.