Wirkungsgradmethode zur Herechnung der Beleuehtungastrkebei Ausaenbeleuchtungsanlagen.

Author(s)
Punch, R.
Year
Abstract

In planning and asseeaing lighting installations in the openit ie advised that a luminous flux diagram be drtt9m forevery type of lighting fitting.

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Publication

Library number
A 5152 fo IRRD 56527
Source

In: Lichttechnik 21 (1969) no.2, febr., p.13A/16A

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