The studies involve measuring the illumination level at various locations as well as analyzing type and location
of various light fittings to assess the system efficacy and opportunities to optimize the overall system
performance.
The typical scope of the work covers
Noting down the illumination (Lux) level at various locations.
Gathering data of types of fittings, switchgear.
Assessing with the operational practices and switching controls
Analysing the data with norm / general practices
Suggesting ways for improvement, as applicable
Submitting the report
A team of one engineer is deputed to carry out the studies and furnishing the report. The field visit is typically
for 5 to 6 hours; during which up to 80 locations can be covered depending upon initial preparations and
support from the plant team.
Although not a part of regular assignment, the following parameters can also be also measured, if possible
and requested by the plant
Measuring illumination level at various locations to compute average value
Noting down the various types of fitting including type, rating and ballast to compute the total power
consumption.
Measuring room dimension to determine the area as well as room index
Computing Lighting Power Density (LPD) and Luminance per LPD (Lux / (W/M 2 ) and comparing the
same against the standard norms provided by BEE to determining Installed Load Efficacy Ratio
(ILER)
Projecting the controllable loss and saving potential based on the present ILER and desired ILER of
75%.
Computing the Circuit Power as well as Lighting Power Density
Estimating Installed Load Efficacy as well as Lamp Circuit Efficacy
Assessing Installed Power Density.
Analysing the losses and suggesting ways for improvement, as applicable
Submitting the report
