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