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Construction and Design Requirements
Law
CFR 30
Mineral Resources
Mine Safety and Health Administration, Department of Labor
Testing, Evaluation, and Approval of Mining Products
Electric Motor-Driven Mine Equipment and Accessories
Construction and Design Requirements
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Section
18.20
Quality of material, workmanship, and design.
Section
18.21
Machines equipped with powered dust collectors.
Section
18.22
Boring-type machines equipped for auxiliary face ventilation.
Section
18.23
Limitation of external surface temperatures.
Section
18.24
Electrical clearances.
Section
18.25
Combustible gases from insulating material.
Section
18.26
Static electricity.
Section
18.27
Gaskets.
Section
18.28
Devices for pressure relief, ventilation, or drainage.
Section
18.29
Access openings and covers, including unused lead-entrance holes.
Section
18.30
Windows and lenses.
Section
18.31
Enclosures - joints and fastenings.
Section
18.32
Fastenings - additional requirements.
Section
18.33
Finish of surface joints.
Section
18.34
Motors.
Section
18.35
Portable (trailing) cables and cords.
Section
18.36
Cables between machine components.
Section
18.37
Lead entrances.
Section
18.38
Leads through common walls.
Section
18.39
Hose conduit.
Section
18.40
Cable clamps and grips.
Section
18.41
Plug and receptacle-type connectors.
Section
18.42
Explosion-proof distribution boxes.
Section
18.43
Explosion-proof splice boxes.
Section
18.44
Non-intrinsically safe battery-powered equipment.
Section
18.45
Cable reels.
Section
18.46
Headlights.
Section
18.47
Voltage limitation.
Section
18.48
Circuit-interrupting devices.
Section
18.49
Connection boxes on machines.
Section
18.50
Protection against external arcs and sparks.
Section
18.51
Electrical protection of circuits and equipment.
Section
18.52
Renewal of fuses.
Section
18.53
High-voltage longwall mining systems.
Section
18.54
High-voltage continuous mining machines.