Vertical Illuminance Ev

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Joined: Thu Feb 09, 2017 4:16 pm

Vertical Illuminance Ev

Post by rimaantoun » Thu Feb 09, 2017 4:29 pm


Is the vertical illuminance Ev (Ev-North, Ev-south, Ev-West and Ev-East) measured at height=0m in street lighting calculations ? and how we can calculate the illuminance Ev at different heights (1.5m for example)?

Thank you in advance,


Posts: 1142
Joined: Wed Mar 07, 2012 3:07 pm

Re: Vertical Illuminance Ev

Post by Csuleiman » Fri Feb 10, 2017 8:57 am

Hello Rima,

The street valuation field includes an observer which is always 60m in front of the valuation field in the middle of the respective roadway, at a height of 1,5m above the ground. This is according to the norm EN13201.
Observer.JPG (79.04 KiB) Viewed 1333 times
Best regards,
DIAL Support Team


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