---
kind: "section"
citation: "30 C.F.R. § 18.49"
title: "30"
number: "18.49"
heading: "Connection boxes on machines."
url: "https://uscodex.org/cfr/30/18.49"
---

# §18.49. Connection boxes on machines.


Connection boxes used to facilitate replacement of cables or machine components shall be explosion-proof. Portable-cable terminals on cable reels need not be in explosion-proof enclosures provided that connections are well made, adequately insulated, protected from damage by location, and securely clamped to prevent mechanical strain on the connections.


## Notes

### Authority

Authority: 30 U.S.C. 957, 961.

### Source

Source: 33 FR 4660, Mar. 19, 1968, unless otherwise noted.