---
kind: "section"
citation: "30 C.F.R. § 56.6403"
title: "30"
number: "56.6403"
heading: "Branch circuits."
url: "https://uscodex.org/cfr/30/56.6403"
---

# §56.6403. Branch circuits.

- (a) If electric blasting includes the use of branch circuits, each branch shall be equipped with a safety switch or equivalent method to isolate the circuits to be used.
- (b) At least one safety switch or equivalent method of protection shall be located outside the blast area and shall be in the open position until persons are withdrawn.

## Notes

### Source

Source: 61 FR 36795, July 12, 1996, unless otherwise noted.

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 50 FR 4054, Jan. 29, 1985, unless otherwise noted.