<div dir="ltr">thanks, Paul. will be checking with our local fire marshal for comparison. </div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><font size="2"><font size="2"><span style="color:rgb(102,0,0)">Alan Abrams</span></font><b style="color:rgb(102,0,0)"><br></b><i><span style="color:rgb(102,102,102)">certified professional building designer, AIBD<br>certified passive house consultant, PHIUS</span></i></font><div><i><span style="color:rgb(102,102,102)">certified passive house builder, PHIUS</span></i><font size="2"><span style="color:rgb(102,0,0)"><font color="#666666"><i><br></i></font></span></font><font style="color:rgb(102,102,102)" size="1"><font size="2">cell </font></font><font style="color:rgb(102,102,102)" size="1"><font size="2">202-437-8583</font></font><font style="color:rgb(102,102,102)" size="1"><font size="2"><br>
<a style="color:rgb(102,102,102)" href="mailto:alan@abramsdesignbuild.com" target="_blank">alan@abramsdesignbuild.com</a><br style="color:rgb(102,102,102)"></font></font><a href="http://www.heliconworks.com/index2.html" target="_blank">HELICON WORKS <i>Architecture and Education</i></a></div></div></div></div></div></div>
<br><div class="gmail_quote">On Tue, Apr 19, 2016 at 10:18 PM, Paul M. Eldridge <span dir="ltr"><<a href="mailto:paul.eldridge@ns.sympatico.ca" target="_blank">paul.eldridge@ns.sympatico.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Sorry, folks, I will try this one last time and hopefully get it right; appreciate everyone's patience. <br>
<br>
Hi Alan,<br>
<br>
Our local fire code requires a minimum of 50 lux or 5 foot candles be maintained in hallways at all times, so this is something you may wish to investigate further. And with 7 to 9-watt A19 LEDs now producing about as much light as a 60-watt household incandescent, there might not be a whole lot to be gained at the end of the day.<br>
<br>
As another point of comparison, a 2-lamp F32T8 wall cube or wrap equipped with two 12-watt InstantFIT T-LEDs powered by a NEMA Premium 0.77 BF ballast draws approximately 23-watts and supplies 2900 lumens, or over125 lumens per watt. That's about as much light as you would derive from two 100-watt incandescents, and the numbers continue to improve with each passing year, e.g., Philips has publicly announced that they expect their InstantFIT T-LEDs to hit the 200 lumen per watt mark in the not too distant future. <br>
<br>
Regards,<br>
Paul<br>
<span class=""><br>
Sent via my BlackBerry Q10 | Ce message envoyé avec mon BlackBerry Q10<br>
<br>
<br>
</span><span class="">Hi Paul (or other electrical wizards)-<br>
<br>
do you have any experience retrofitting hotel or multifamily corridor<br>
lighting with occupancy sensors? For example, what are the code<br>
limitations--minimum lighting levels when not actuated, hours of operation,<br>
etc...<br>
<br>
I've stayed in apartment bldgs in Europe where corridor lights were<br>
completely off, all the time, unless actuated. I am also aware that<br>
California was considering a mandate for dual level systems a few years<br>
ago, with limited hours of operation, but I don't know what became of it.<br>
IIRC, they would have required one lumen per square foot, when not actuated.<br>
<br>
-aa<br>
<br>
Alan Abrams<br>
<br>
</span>*certified professional building designer, AIBDcertified passive house<br>
consultant, PHIUS*<br>
*certified passive house builder, PHIUS*<br>
cell 202-437-8583<br>
<a href="mailto:alan@abramsdesignbuild.com">alan@abramsdesignbuild.com</a><br>
HELICON WORKS *Architecture and Education*<br>
<<a href="http://www.heliconworks.com/index2.html" rel="noreferrer" target="_blank">http://www.heliconworks.com/index2.html</a>><br>
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