Subjgrp 27. Electrical System
- § 229.77 - Current collectors.
- § 229.79 - Third rail shoes.
- § 229.81 - Emergency pole; shoe insulation.
- § 229.83 - Insulation or grounding of metal parts.
- § 229.85 - High voltage markings: doors, cover plates, or barriers.
- § 229.87 - Hand-operated switches.
- § 229.89 - Jumpers; cable connections.
- § 229.91 - Motors and generators.