Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Calculating energy used for lighting
  4.1 Total energy used for lighting
      4.1.1 Total estimated energy
      4.1.2 Total annual energy used for lighting
  4.2 Lighting Energy Numeric Indicator (LENI)
5 Metering
  5.1 General
  5.2 Load segregation
  5.3 Remote metering
6 Calculation of lighting energy in buildings
  6.1 Installed lighting power
      6.1.1 General
      6.1.2 Luminaire
      6.1.3 Luminaire power (P[i])
      6.1.4 Parasitic powers (P[ci] and P[ei])
  6.2 Calculation methods
      6.2.1 Quick method
      6.2.2 Comprehensive method
      6.2.3 Determination of constant illuminance factor F[c]
7 Benchmark of lighting energy requirements
8 Lighting design and practice
Annex A (informative) Metering of lighting circuit
Annex B (informative) Measurement method of total power of
        luminaires and associated parasitic power
      B.1 Introduction
      B.2 Test measurement of luminaire power during normal
           operation
      B.3 Standard test conditions
      B.4 Electrical measuring instruments
      B.5 Test luminaires
      B.6 Test voltage
      B.7 Luminaire power (P[i])
      B.8 Luminaire parasitic power with lamps off (P[pi])
      B.9 Emergency lighting luminaire parasitic input power
           (P[ei])
      B.10 Lighting controls standby parasitic power (P[ci])
      B.11 Default luminaire power for existing lighting
           installations
      B.12 Default parasitic energy for existing lighting
           installations
Annex C (informative) Determination of the daylight dependency
        factor F[D,n]
      C.1 General
      C.2 Building segmentation: Spaces benefiting from daylight
      C.3 Daylight supply
          C.3.1 Vertical fagades
          C.3.2 Rooflights
      C.4 Daylight dependent artificial lighting control, F[D,c]
      C.5 Monthly method
Annex D (informative) Determination of occupancy dependency
        factor F[o]
      D.1 Introduction
      D.2 Detailed determination of F[o]
      D.3 Motivation for the choice of F[o] functions
Annex E (informative) Determination of the constant illuminance
        factor F[c]
      E.1 Introduction
      E.2 Power for constant illuminance factor
      E.3 Constant illuminance factor (F[c])
Annex F (informative) Benchmark values and lighting design criteria
Annex G (informative) Default values
      G.1 The default values for annual operating hours relating
          to building type are given in Table G.1
Annex H (informative) Other considerations
      H.1 Individual dimming
      H.2 Algorithmic lighting
      H.3 Light pipes
      H.4 Lighting installations with scene setting
      H.5 Daylight guidance
          H.5.1 Vertical fagades
          H.5.2 Rooflights
Annex I (informative) List of Symbols
Bibliography
National Annex NA (informative) Comparison of calculation methods
                  used in Germany with those specified in this
                  European Standard