§ 57.22308. Methane monitors (III mines).
91 words·~1 min read·
/us/cfr/t30/s§ 57.22308·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)Methane monitors shall be installed on continuous mining machines and longwall mining systems.
(b)The monitors shall---
(1)Give warning at 1.0 percent methane;
(2)Automatically deenergize electrical equipment, except power to monitoring equipment determined by MSHA to be intrinsically safe under 30 CFR part 18, and prevent starting such equipment when methane levels reach 1.5 percent; and
(3)Automatically deenergize the equipment when power to a sensor is interrupted.
(c)Sensing units of monitors shall be positioned at a location which provides for the most effective measurement of methane.
Connections2 cite this
Cited by 2 sections · top 1
register
1 reference not yet in our index
- 30 CFR 18
Citation graph
cites case law
§ 57.22308
Methane monitors (III mines).
Fed. Reg.×2
Cite30 CFR 18
Cites 1Cited by 2 across 1 source