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Hi,<br>
<br>
according to Maintenance, safeguards, and operational features for
exit routes:<br>
<a class="moz-txt-link-freetext" href="https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.37">https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.37</a><br>
<br>
there is nothing that would prevent a mechanism where the Exit sign
light power is controlled by a relay that detects power<br>
or the loss of it as far as I read it.<br>
However, a "curtain" for example is explicitly not allowed! see:
1910.37(b)(3)<br>
<br>
cheers,<br>
Beni<br>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 9/19/23 11:17, Imani Burton wrote:<br>
</div>
<blockquote type="cite" cite="mid:MW4PR09MB9092F47E7723D8405603CBF6D2FAA@MW4PR09MB9092.namprd09.prod.outlook.com">
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<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
Hi Beni,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
That is correct the "EXIT" light is in the dark room for safety
reasons. Due to OSHA regulations, exit signs are constantly
illuminated so even if there is power the exit sign light is on.
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
Thank you,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
Imani <br>
</div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b>
dsg-eic_dirc <a class="moz-txt-link-rfc2396E" href="mailto:dsg-eic_dirc-bounces@jlab.org"><dsg-eic_dirc-bounces@jlab.org></a> on behalf
of Beni Zihlmann via dsg-eic_dirc
<a class="moz-txt-link-rfc2396E" href="mailto:dsg-eic_dirc@jlab.org"><dsg-eic_dirc@jlab.org></a><br>
<b>Sent:</b> Tuesday, September 19, 2023 10:37 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:dsg-eic_dirc@jlab.org">dsg-eic_dirc@jlab.org</a> <a class="moz-txt-link-rfc2396E" href="mailto:dsg-eic_dirc@jlab.org"><dsg-eic_dirc@jlab.org></a><br>
<b>Subject:</b> [dsg-eic_dirc] exit sign inside the dark room</font>
<div> </div>
</div>
<div class="BodyFragment"><font size="2"><span style="font-size:11pt;">
<div class="PlainText">Hi All,<br>
I just want to understand the purpose of the "EXIT" light
in the dark room.<br>
If I understood correctly this sign is there for safety
reason in case <br>
of power loss. This means this light requires<br>
separate power (ups/battery)? Also, since the purpose of
the light is to <br>
be on when there is power loss, does that<br>
mean that if there is power the light is not required to
be on?<br>
If that is correct than one can install a relay that
switchers on power <br>
loss and turns on the light. while when there<br>
is power the light is NOT on.<br>
is that an acceptable operation mode?<br>
<br>
cheers,<br>
Beni<br>
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</span></font></div>
</blockquote>
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