---
kind: "section"
citation: "30 C.F.R. § 75.518"
title: "30"
number: "75.518"
heading: "Electric equipment and circuits; overload and short circuit protection."
url: "https://uscodex.org/cfr/30/75.518"
---

# §75.518. Electric equipment and circuits; overload and short circuit protection.


Automatic circuit-breaking devices or fuses of the correct type and capacity shall be installed so as to protect all electric equipment and circuits against short circuit and overloads. Three-phase motors on all electric equipment shall be provided with overload protection that will deenergize all three phases in the event that any phase is overloaded.


## Notes

### Authority

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

### Source

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