HD 494 S2:1990

Lamps for road vehicles - Dimensional, electrical and luminous requirements HD 494 S2:1990

Scope

This standard covers incandescent lamps to be used in headlamps, fog-lamps and signalling lamps for road vehicles and specifies the technical requirements with methods of test and basic interchangeability (dimensional, electrical and luminous) - It applies to those lamps which may be the subject of legislation - In particular it covers those lamps contained in Regulation No 37 of the Geneva agreement of 20 March 1958 of the United Nations Economic Commission for Europe (ECE) concerning the adoption of uniform conditions of approval and reciprocal recognition of approval for motor vehicle equipment and parts. The lamps types specified are listed in Section Five - In countries which legislate for approval under the terms of the aforementioned ECE regulations, it is suggested that reference is made to this standard for assessment of compliance - In this standard, details are included of the following: a) Requirements for series production lamps - b) Requirements for type approval - c) Requirements for standard (étalon) lamps - d) Performance requirements such as lamp life, lumen maintenance, torsion strength and resistance to vibration and shock are specified in IEC Publication 810: Lamps for Road Vehicles - Performance Requirements - Information such as temperature limits and maximum lamp outlines is also included in that standard for guidance of lighting equipment design - IEC Publication 810 is not intended for reference by authorities concerning type approval or conformity of production