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HFDR and HFDU
1 Introduction
Light conveyor belt predominantly used for the indoor transport of unit loads (for example: parcels
Who is BS EN 4382 - Heat resisting alloy NI-PH3601 (NiCr22Mo9Nb) for
BS EN 50441-1 introduces the cables that are installed in ducts
Railway applications. Rolling stock. Electric equipment in trolley buses. Safety requirements and current collection systems Ingestion-build-103253 HFDR and HFDU1 Scope This European Standard applies to electrical systems on board of vehicles of the type trolley bus, as defined in 3. 1, fed with a nominal line voltage (Un) between 600 V d. c. and 750 V d. c. This European Standard defines the requirements and constructional hints, especially to avoid electrical danger to the public and to staff. Where special requirements are existing for trolley buses, hints are given for mechanical and functional safety as