<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<font face="Arial">Aren't the relay controls constantly powered with
the same low life expectancy switcher as the lights?</font><br>
<br>
<div class="moz-cite-prefix">On 08/11/2016 05:19 AM, Bill Conner via
Stagecraft wrote:<br>
</div>
<blockquote
cite="mid:CAHtCQ9SCrB4Jn7C-vJRh3KB4mca7h7JsKvA88MUmq+9we9XBKg@mail.gmail.com"
type="cite">
<pre wrap="">I would never design a modern stage lighting system, basically
distributed data and power, without the ability to easily de-power the
circuits, relays somewhere.
De-powering electrical gear not in use and no one present just makes
safety sense.
Requiring a technician to flip a bull switch or individual breakers
seems rude and disrespectful. What ever you think, it won't be on the
the tech's route - both current and future techs - in and out of the
building.
While the quiescent power consumption is small, its not zero. More
importantly, while the LEDs are shown to last a long time, the power
supplies have no such record. And these are everywhere.
I don't know what was proposed to Robert, but relays are not that
expensive. A 24 circuit main lugs Echo panel is $4800. Assuming an
average of 5 LED units per circuit, that's $40 per fixture, each of
which is probably $800 to $2500. And a substantial part of the total
cost of eh work is installing the panel, whether a dumb circuit
breaker panel or a smart mains lug panel.
Simpler solution for some, go ahead and distribute constant circuits,
and use something like ETC's Colorsource relay - $225 - and it will
control power for up to 10 units typically. Or save on data distro
and use the wireless version - now a DMX out at every relay.
Never want a remotely - from console - switched circuit for anything?
And I always have a relay panel for work and utility lights anyway (or
have had - as more of those are LED with means to switch with data or
low voltage.) Again, it seems rude and disrespectful to make someone
go to a dozen wall switches at catwalks, grids, etc.
Its just too small of a cost to not do relay control of otherwise
constant power lighting circuits.
As far as what you are looking at, I will forever believe that going
to a vendor for major system design is stupid from the start, just too
much likelihood for non-objectivity. They have biases for the
products they sell and in selling them.
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Jerry Durand, Durand Interstellar, Inc.
<a class="moz-txt-link-abbreviated" href="http://www.interstellar.com">www.interstellar.com</a>
tel: +1 408 356-3886
</pre>
</body>
</html>