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GRE-OVIG-Working Paper No. 2007-03 (1 st session of the GRE Informal Group on Operating Voltage, 19-20 June 2007). Light Sources. Input IEC delegation to GRE to OVIG, 19,20 June 2007. Design of Light Sources. Bound to: Laws of physics Defined operating conditions

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light sources

GRE-OVIG-Working Paper No.2007-03

(1st session of the GRE Informal

Group on Operating Voltage, 19-20 June 2007)

Light Sources

Input IEC delegation to GRE

to OVIG, 19,20 June 2007

design of light sources
Design of Light Sources

Bound to:

  • Laws of physics
  • Defined operating conditions
  • Specified performance requirements
  • Unavoidable compromises
voltage conditions
Voltage conditions

R37

  • Test voltage Head Lighting: 13,2V*
  • Test voltage Signalling: 13,5V*
  • DC

*other regions mostly lower

R99

  • Test voltage 13,5V
  • Electronic light source control gear (ballast)
control gear ballast
Control gear (ballast)

R48

2. 7. 1. 2. "Electronic light source control gear" means one or more components between supply and light source to control voltage and/ or electrical current of the light source;

R99

3. 1. 2. " Ballast ": Specific electrical supply for the gas-discharge light source.

conclusion
Conclusion

Specified performance requirements

need

Defined operating conditions