GB/T 47161-2026 Railway applications—Rolling stock—Electrical safety for trolley bus
GB/T 47161-2026 Railway applications—Rolling stock—Electrical safety for trolley bus
Basic Information
Scope
This document specifies the voltage and voltage level classification of trolleybuses, electrical safety requirements, inspection rules, and describes the corresponding test methods.
This document applies to the on-board electrical systems of trolleybuses with a nominal supply voltage (Un) of DC 600 V to DC 750 V.
This document applies to trolleybuses and guided vehicles equipped with roof-mounted bipolar pantographs.
This document does not apply to the following vehicles:
a) Electric vehicles with only an internal power supply system:
1) Hybrid vehicles;
2) Internal combustion electric vehicles;
3) Fuel cell vehicles;
4) Pure electric vehicles.
b) Vehicles with safety protective grounding:
1) Rubber-tired commuter trains;
2) Guided buses powered by independent contact rails;
3) Rail-guided buses equipped with unipolar pantographs.
c) Vehicles operating outside public areas: Electric-powered trucks on highways.
This document does not apply to vehicles powered by guided rails and contact rails.
The systems referred to in this document mainly include electrical insulation and grounding network systems.