---
kind: "section"
citation: "30 C.F.R. § 18.25"
title: "30"
number: "18.25"
heading: "Combustible gases from insulating material."
url: "https://uscodex.org/cfr/30/18.25"
---

# §18.25. Combustible gases from insulating material.

- (a) Insulating materials that give off flammable or explosive gases when decomposed electrically shall not be used within enclosures where the materials are subjected to destructive electrical action.
- (b) Parts coated or impregnated with insulating materials shall be heat-treated to remove any combustible solvent(s) before assembly in an explosion-proof enclosure. Air-drying insulating materials are excepted.

## Notes

### Authority

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

### Source

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