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Home Page > Executive Branch > Code of Federal Regulations > Electronic Code of Federal Regulations
e-CFR Data is current as of February 4, 2010
TITLE 30--Mineral Resources
CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
SUBCHAPTER B--TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS
PART 18--ELECTRIC MOTOR-DRIVEN MINE EQUIPMENT AND ACCESSORIES
Subpart A--GENERAL PROVISIONS
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| Electrical equipment for which approval is issued. |
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| Equipment for which certification will be issued. |
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| Date for conducting investigation and tests. |
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| Conduct of investigations and tests. |
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| Notice of approval or disapproval. |
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| Identification of tested noncertified explosion-proof enclosures. |
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| Changes after approval or certification. |
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| Withdrawal of approval, certification, or acceptance. |
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Subpart B--CONSTRUCTION AND DESIGN REQUIREMENTS
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| Quality of material, workmanship, and design. |
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| Machines equipped with powered dust collectors. |
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| Boring-type machines equipped for auxiliary face ventilation. |
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| Limitation of external surface temperatures. |
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| Combustible gases from insulating material. |
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| Devices for pressure relief, ventilation, or drainage. |
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| Access openings and covers, including unused lead-entrance holes. |
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| Enclosures--joints and fastenings. |
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| Fastenings--additional requirements. |
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| Finish of surface joints. |
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| Portable (trailing) cables and cords. |
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| Cables between machine components. |
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| Leads through common walls. |
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| Plug and receptacle-type connectors. |
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| Explosion-proof distribution boxes. |
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| Explosion-proof splice boxes. |
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| Non-intrinsically safe battery-powered equipment. |
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| Circuit-interrupting devices. |
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| Connection boxes on machines. |
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| Protection against external arcs and sparks. |
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| Electrical protection of circuits and equipment. |
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| High-voltage longwall mining systems. |
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Subpart C--INSPECTIONS AND TESTS
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| Detailed inspection of components. |
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| Final inspection of complete machine. |
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| Tests to determine explosion-proof characteristics. |
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| Tests of windows and lenses. |
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| Tests for intrinsic safety. |
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Subpart D--MACHINES ASSEMBLED WITH CERTIFIED OR EXPLOSION-PROOF COMPONENTS, FIELD MODIFICATIONS OF APPROVED MACHINES, AND PERMITS TO USE EXPERIMENTAL EQUIPMENT
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| Approval of machines assembled with certified or explosion-proof components. |
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| Field modification of approved (permissible) equipment; application for approval of modification; approval of plans for modification before modification. |
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| Permit to use experimental electric face equipment in a gassy mine or tunnel. |
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Subpart E--FIELD APPROVAL OF ELECTRICALLY OPERATED MINING EQUIPMENT
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| Electric equipment for which field approvals will be issued. |
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| Quality of material and design. |
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| Application for field approval; filing procedures. |
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| Application for field approval; contents of application. |
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| Approval of machines constructed of components approved, accepted or certified under Bureau of Mines Schedule 2D, 2E, 2F, or 2G. |
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| Preparation of machines for inspection; requirements. |
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| Inspection of machines; minimum requirements. |
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| Enclosures, joints, and fastenings; pressure testing. |
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| Notice of approval or disapproval; letters of approval and approval plates. |
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