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NC-v4 EAp2: Minimum energy performance
Project location: Italy
June 10, 2021
88 thumbs up
In order to specify the lighting power density according to table 9.6.1, what is the definition of "Fine material storage"?
The power density of "medium/bulky material storage" is much lower.
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5623 thumbs up
June 10, 2021 - 9:58 am
Good question. Not sure there is a firm defintion. Did you check the User's Manual or maybe the IESNA Lighting Handbook? For me fine material would be small items, especially those that require the ability to read something with somewhat small print on them but maybe that is my aging eyes talking as I definiately need more light to read small print the older I get.
June 10, 2021 - 11:36 am
In the User's manual v. 2016 I have found this, but it isn't a definition: "Assume that the building described in Example 9-L is used as a warehouse for bulky items and that the space contains large storage racks".
What do you think if in the storage there are cardboard boxes?
June 10, 2021 - 3:53 pm
Big boxes? Small boxes? Large lettering or small lettering? Without a definition you would need to be able to justify the selection you make especially if selecting the higher value. One way to decide - use the conservative approach. If you are unsure pick the lower value as it will not attract additional scrutiny.
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