49 CFR § 236.720 Rules, Standards, and Instructions Governing the Installation, Inspection, Maintenance, and Repair of Signal and Train Control Systems, Devices, and Appliances

§ 236.720 Circuit, common return.

Current through Sep 25, 2026 · Read all of Part 236

A term applied where one wire is used for the return of more than one electric circuit.

← § 236.719 Circuit, acknowledgment.§ 236.721 Circuit, control. →