[Tig] Spirit Shutdown

John Hinchliffe john-h
Fri Oct 12 12:48:46 BST 2001

I wouldn't get overly worried about lamp life because, as you say, lamps are
relatively inexpensive. Power supplies, on the other hand, are not so cheap
and tend to blow up if they are frequently turned on and off. Effectively,
the power supply is a dead short across the mains during the first half
cycle of the mains power - which is really quite a big hit to keep taking
over and over.

While you can keep spare lamps on hand, - you can guess the rest!

This applies to anything fitted with a switch-mode power supply - which,
these days, is just about everything in a facility apart from the coffee

In terms of downtime, a lamp is a few minutes but a PSU could be a whole day
or more :-{


Jon Hinchliffe

----- Original Message -----
From: Robert Lovejoy <rlovejoy at home.com>
To: <Tig at tig.alegria.com>
Sent: Friday, October 12, 2001 2:26 AM
Subject: [Tig] Spirit Shutdown

> Just curious,
>      I was wondering if any Spirit operators shut down power to the
> either nightly or over the weekend.  When our machine was installed they
> recommended we leave it on constantly as the power cycling would impact
> life.
>     However, bulbs are relatively inexpensive compared to the power draw
> even an idle Spirit.  I may be willing to lose a few hours of bulb life if
> the savings on the electric bill make it worthwhile economically.
>      Looking forward to your thoughts...
> Bob Lovejoy
> Shooters Post & Transfer
> Philadelphia, PA
> --
> Thank you to New Art Digital, Craig Leffel, Geoff Boyle/CML,
> and
> Marc Wielage for support of the TIG in 2001.
> _______________________________________________
> Tig mailing list
> Tig at tig.alegria.com
> http://tig.alegria.com/mailman/listinfo/tig

More information about the Tig mailing list