Nope all!
Look at what caused the failure!!! See the arching of the pins of the lamp? Don't just wonder about... these things happen, they don't. If you find this problem, there is a serious problem that installing a new lamp into a
fixture will waste theater dollars in not recognizing.
Always inspect the bad lamp for why it failed, and indeed learn the characteristics for why a lamp fails in not just changing it but clearly in this case a bad lamp
socket caused the problem. A perfectly good lamp installed into a perfectly bad lamp
socket will make another failure until that
socket finally stops working. Osram has excellent PDF texts on lamps and even quick references you can print and poster on your lamp cabinet in how and why the lamp failed.
Gee, what caused this lamp to fail? Wasn't an envelops break or finger touching. Sand falling into the audience is not a common thing in other than a very failed to recognize lamp
base replacement - before the lamp failed... in it overheating what was nearest it. Or a really really bad
bench focus which probably would fail before overheating the lamp
base but could break cement in silica falling out. Amongst options - something that if you find sand falling.... a serious thing to investigate and not a common thing.
That amount of silica sand blackened don't turn black from a
envelope or micro crack
thru the monofoil, it takes a lot of heat and time to blacken a silica filler. Another easy indication of a bad lamp
socket.
Did you replace the lamp
socket once the lamp failed in a way in which you noted it needing replacement of it, or at this
point note a few months ago I just changed that lamp in the
fixture due to it also failing? Don't be worried, I have "Pro's" on tour constantly changing the same lamp on the same
fixture every few weeks, every time about a hundred hours less ... and not wondering why it failed before it stops working. Mostly bad lamp
socket, but sometimes bad
ballast. None of the 'Pro's' care about other than getting the
fixture running beyond that and visiting it in the coming weeks - the same
fixture every few weeks or months. There lamps are well over $100 per lamp in those changing the lamp failing to do their job as a "professional" in maintaining the gear.
Inspect the pins of what lamps you replace, if charred or arched - replace the lamp
socket in the
fixture as it will match in being bad. What arched a bad lamp will match that in the lamp
socket.... so just induce that arching into a new lamp? Otherwise you get on average a next lamp that will last 100 hours less each time the lamp is changed until it just stops working at best.
By the way, the silica sand filler is normally white, them being black should also indicate a serious problem in overheating. I have never seen this before in speaking for a really bad thing. Don't just install a new lamp into the
fixture, there is a problem even if the cement retaining the silica sand has been broken and the silica leaks out.
Take some time to study the PDF's on lamps Osram has written - they are very useful in as a professional, doing your job training source of information. Take a few monents to consider why what lamp you are changing failed.... yep.. due to over hours is a good thing to as a "pro" know in changing verses changing the lamp because of the
fixture.
