---
kind: "section"
citation: "30 C.F.R. § 75.703-4"
title: "30"
number: "75.703-4"
heading: "Other methods of protecting offtrack direct-current equipment; approved by an authorized representative of the Secretary."
url: "https://uscodex.org/cfr/30/75.703-4"
---

# §75.703-4. Other methods of protecting offtrack direct-current equipment; approved by an authorized representative of the Secretary.


Other methods of maintaining safe voltage by preventing a difference between the frames of offtract direct-current machines and the earth must be approved by an authorized representative of the Secretary.


## Notes

### Authority

Authority: 30 U.S.C. 811, 813(h), 957.

### Source

Source: 35 FR 17890, Nov. 20, 1970, unless otherwise noted.