This Technical Specification applies to electrical systems on board trolley buses, as defined in 1.3.1,
fed with a nominal line voltage (Un) between 600 V d.c. and 750 V d.c.
This Technical Specification defines the requirements and constructional hints, especially to avoid
danger of electrical kind to the public and to the personnel.
CLC/TS 50502 is normative only for vehicles ordered and designed after publication of the same.
This Technical Specification covers vehicles intended for public transport of persons.
It refers mainly to earthed networks, but reference is made also to galvanically insulated networks.
Annexes B and C are related to the connection systems. The detailed scope of these annexes is given
in Annex B.
BS DD CLC/TS 50502:2008 Referenced Document
EN 50119 Railway applications - Fixed installations - Electric traction overhead contact lines (Incorporates Amendment A1: 2013)*， 2009-09-01 Update
EN 50122-1 Railway Applications - Fixed Installations Part 1: Protective Provisions Relating to Electrical Safety and Earthing
EN 50153 Railway applications - Rolling stock - Protective provisions relating to electrical hazards*， 2014-05-01 Update
EN 50155 Railway Applications Electronic Equipment Used on Rolling Stock
EN 50163 Railway applications - Supply voltages of traction systems*， 2022-08-12 Update
EN 50207 Railway Applications - Electronic Power Converters for Rolling Stock
EN 50215 Railway applications - Rolling stock - Testing of rolling stock on completion of construction and before entry into service*， 2024-04-19 Update
EN 50272-3 Safety requirements for secondary batteries and battery installations Part 3: Traction batteries
EN 60322 Railway Applications - Electric Equipment for Rolling Stock - Rules for Power Resistors of Open Construction
EN 60349-1 Electric traction - Rotating electrical machines for rail and road vehicles - Part 1: Machines other than electronic converter-fed alternating current motors*， 2024-04-19 Update
EN 60349-2 Electric traction - Rotating electrical machines for rail and road vehicles - Part 2: Electronic converter-fed alternating current motors*， 2024-04-19 Update
EN 61373 Railway applications - Rolling stock equipment - Shock and vibration tests*， 2010-09-01 Update
EN ISO 9001 Quality management systems - Requirements - Amendment 1: Climate action changes (ISO 9001:2015/Amd 1:2024)
ISO 10099 Pneumatic fluid power - Cylinders - Final examination and acceptance criteria
BS DD CLC/TS 50502:2008 history
2015BS EN 50502:2015 Railway applications. Rolling stock. Electric equipment in trolley buses. Safety requirements and current collection systems
2008BS DD CLC/TS 50502:2008 Railway applications - Rolling stock - Electric equipment in trolley buses - Safety requirements and connection systems
2007BS DD CLC/TS 50502:2007 Railway applications — Rolling stock — Electric equipment in trolley buses — Safety requirements and connection systems