---
kind: "section"
citation: "30 C.F.R. § 77.902-2"
title: "30"
number: "77.902-2"
heading: "Approved ground check systems not employing pilot check wires."
url: "https://uscodex.org/cfr/30/77.902-2"
---

# §77.902-2. Approved ground check systems not employing pilot check wires.


Ground check systems not employing pilot check wires shall be approved by the Secretary only after it has been determined that the system includes a fail safe design causing the circuit breaker to open when ground continuity is broken.


## Notes

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 36 FR 9364, May 22, 1971, unless otherwise noted.