Evaluation of International Electrotechnical Commission's Standards for Explosion-Proof Enclosures
mine-safety · Mine Safety and Health Administration · Published 2006-05-17 · Effective 2006-05-17 · 71 FR 28581
Document
Document number
06-4391
Federal Register citation
71 FR 28581
CFR reference
30 CFR 6
Type
Rule
Action
Final rule; equivalency determination.
Category
mine-safety
Sub-agency
Mine Safety and Health Administration
Publication date
2006-05-17
Effective date
2006-05-17
Abstract
MSHA reviewed the requirements of the International Electrotechnical Commission's (IEC) standards for Electrical Apparatus for Explosive Gas Atmospheres to determine if they are equivalent to the Agency's applicable product approval requirements or can be modified to provide at least the same degree of protection as those requirements. MSHA has determined that the IEC's standards for explosion-proof enclosures, with modifications, provide the same degree of protection as MSHA's applicable product approval requirements. Applicants may request that MSHA grant product approval for explosion- proof (flameproof) enclosures based on compliance with the IEC standards provided MSHA's specified list of modifications is also addressed in the submitted design.