This is topic Use Your Safety Gear in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.
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Posted by Aaron Mehocic (Member # 15) on 02-05-2000, 09:59 AM:
Just a quick note to tell the new people, and some of you old guys in the booths around the world to use your face masks when changing bulbs. If you don't have face masks, then GET SOME. Last Wednesday I was changing a bulb when it blew up in my face! Fortunately, my glasses shielded my eyes from the flying pieces of sharp bulb glass, but I would have felt more safe if I had on a face mask. Nothing like a trip to hell to show you what its really like. Be careful out there!
Posted by John Walsh (Member # 168) on 02-05-2000, 10:59 AM:
That's damned spooky; glad you're OK. I do get a little careless sometimes. I wear glasses, too, a little luck there. What was it like: did the glass cut your face or hands?Never had a bulb explode while I was handling it. You know how there's a club for people who have saved their lifes by using a parachute? Well, maybe we should have one for people who have a bulb explode on them while handling!
Posted by Bruce McGee (Member # 131) on 02-05-2000, 11:36 AM:
I have a xenon Eiki 16 with the 350 watt bulb. When I got the machine, the bulb had exploded during a change and bits of quartz had gotten in the face of the fellow doing the work. Luckily, he too, wore glasses. The parabolic mirror was destroyed too.I hope this never happens to me. I have major respect for xenon and the high pressure involved.
I'm glad nobody was blinded here by the thing.
Posted by Christopher A Kerr (Member # 151) on 02-05-2000, 12:00 PM:
I have seen the result of a bulb exploding inside a lamphouse, and if the exlosion can do that to steel mirrors and the case. I don't want it doing that to my face. I ALLWAYS WEAR MY SAFTEY GEAR WHEN I OPEN THE LAMPHOUSE!!!!!! If a bulb exlosion can send shards of quartz out with such force as to embed them in the solid steel dowser, think what it could do to your fragile little eyes. Glad you are OK Aaron.
Posted by Randy Loy (Member # 112) on 02-05-2000, 12:41 PM:
A friend who operates theatres and owns a cinema supply company demonstrated the dangers of xenon bulbs to me this past summer. He took a well used 2000 watt bulb to a vacant field and tossed it high up into the air. When the bulb landed it exploded with much force and a sound much like a shotgun blast. We found very tiny pieces of glass everywhere. That experience very quickly made me a believer in the need for safety equipment!
Posted by Dave Williams (Member # 299) on 02-05-2000, 01:46 PM:
On Christmas eve of just this last year, I had a 2000W Xenon explode just two seconds after it lit up. When these things go up when they are lit they have much more explosive force then when they are cool.The force created a shock wave that threw me back four feet into the wall. The sheetrock crumbled when I hit it. The sound of it was so loud the Police next door came over. They found me in the booth but I was out cold. I came to after about five minutes or so.
It took six hours to repair and overhaul the lamphouse. But the damndest thing, the reflector was UNDAMAGED. Everything else was toast. It was like a stick of dynamite. If it wasnt for the fact that the lamphouse was well constructed I am sure I would have been killed. And this was just lighting it.
During the overhaul I found that this same lamphouse had an explosion in the past, as there were pieces of reflector and bulb everywhere. And from that it caused damage to the electrical systems that was never repaired, causing the system to short out and overload the bulb, and the second explosion.
SO WARNING, make sure your lamphouses are well maintained, INCLUDING THE ELECTRICAL SYSTEMS. The bulbs can explode if they get overloaded or shorted. The lamphouse is often overlooked as are the electrical components.
YES I AM OK NOW. Just a concussion. Very little brane damaje. (hehe)
------------------
"If it's not worth doing, I have allready been there and done it"
Posted by Joe Redifer (Member # 3) on 02-05-2000, 11:33 PM:
Aaron,Not to make light of your situation or anything, but what exactly caused the bulb to explode in the first place? Just curious.
Posted by Stefan Scholz (Member # 147) on 02-06-2000, 03:26 AM:
The only bulb explosion I can remember were with ORC bulbs, some years ago, just after striking. It was quite loud, but besides a shattered reflector everything else was left oK. The mirror broke into pieces, and as this theatre didn't have a replacement, we epoxy glued the pieces together. It ran for nearly a year before they bought a replacement. Just after they had recognized, that it wasn't totally in focus, and therefore some IR light rays had grilled their lenses...
The reason for the bulb explosion was simple, they used a "unique foil seal technology", that gives contact via tungsten foils to the electrodes. If theese foils do not have a very tight contact to the electrode contactor, as sometimes happens, the little spot that has contact will overheat (Heat energy = Resistance * Amps), and overstress the glass structure punctually.
This is probably the same reason, why the 350 Watts bulb in that Eiki blew up, as the Toshiba bulbs used the same technology.Tungsram bulbs from Tchechoslovakia were known to explode quite often (Called Exploram from some techs), as well as Soviet or other cheap sources.
Posted by Bruce McGee (Member # 131) on 02-06-2000, 09:55 AM:
You are right on with the TOSHIBA remarks. The original was this brand. All I can find is USHIO now, and I have never had a failure.I'm running "This Is The Army" (1943) at a hotel tonight. I have 2 xenon 16's, and one spare lamp.
The hotel has a real projection booth with no equipment. When it opened in the '20's they entertained the guests with free movies. The room is an enclosed cement box with a HEAVY door for all the burning nitrate. I love showing films there. You cant hear the projector running at all! They never use the booth, and until recently, they were planning to knock out the booth and make storage out of it. When they found the thick concrete walls there, they dropped it.....
Posted by Tim Reed (Member # 137) on 02-06-2000, 10:07 AM:
Aaron: Did you knock the bulb against something, or put it under any mechanical stress, that caused it to fracture? I was just curious. And did you receive any cuts on your face?This DOES prove that wearing glasses will save your eyes, which is what I've always believed.
Posted by Chris Erwin (Member # 176) on 02-06-2000, 10:52 AM:
When I help the manager change our 4000 watt xexon, it looks as if we are going into combat. Both with heavy aprons, full face shields (like the the kind for sand-blasting) and thick gloves.Does it sound too extreme? After reading the above,I don't think so. I'd rather look pretty silly for a few minutes (hey,no ones around anyhow) than be blinded for a lifetime.
--Chris
P.S. It's always a good idea to have someone near by (out of harm's way) when you're changing one of these. In case the worse happens,someone can call for help. Does anybody else follow this measure?
Posted by Martin Frandsen (Member # 74) on 02-06-2000, 12:05 PM:
Chris is right take no chance, have someone around you while you replace the bulb (it's not always possibel i no)I no this is of subject, but how do you guys get rid of the old bulbs?
Martin
Posted by Stefan Scholz (Member # 147) on 02-06-2000, 01:27 PM:
We "recycle" by giving them to a frek, building light effects for concerts, raves etc. Most people call him Dr. Xenon, as he knows such a lot about it...
All he wants to know, how far he could overload a bulb, before it explodes.Serious, he is a specialist, and knows how to handle bulbs, and never had an explosion in 5 years, using worn theatre bulbs.
Posted by Ian Price (Member # 14) on 02-06-2000, 02:26 PM:
We place the used lamps back in the plastic carriers. We put them in the cardboard box they came in and tape it closed with masking tape. We then slam the box on the booth floor untill we hear the lamp pop. We are often disapointed when the lamp just breaks without the loud bang. We then toss the box, lamp and all in the garbage.At my new theatre we have a "differently abled" employee who loves all light bulbs. I get the impression that his room at home resembles a light bulb museum. He has been pestering me to give him a used xenon lamp. I wouldn't give a xenon lamp to anyone. "Here, hold this M80 with the fuse lit. Don't worry it wont hurt too much."
Posted by Jon Miller (Member # 163) on 02-06-2000, 03:29 PM:
About four years ago a cinema equipment installer, when asked by me why there was no "bomb suit" provided with the projection system he installed at a facility I moonlighted as a projectionist some time ago, mentioned the requirement for a flak jacket was borne out of early-seventies paranoia by those fearful of their beloved carbon-arc equipment being replaced by xenon. I thought this guy was acting a bit irresponsibly in pooh-poohing protective clothing like that. (FWIW, the system he installed uses 2000-watt lamps.)Which begs the question...is a face mask available at any Home Depot adequate, or do you really need a special face mask?
Posted by John Walsh (Member # 168) on 02-06-2000, 04:36 PM:
A Home Depot face mask is OK. I don't think the glass has any real weight, so would not
go through even thin plastic. Since your hands are closer to the bulb, gloves probably should be a little thicker, as there's more force there.On some lamps, you can leave the protective shield on while installing, but on others you can't. Osrams are good bulbs, but you almost always have to work without the plastic safety case on it. Hanovia (sp?) has a good idea with the thick plastic wrap that can stay on in even small reflectors, then be unwrapped when done.
Posted by Stephen Jones (Member # 16) on 02-06-2000, 07:27 PM:
Geez Aaron you were certainly had luck on your side that day.I always wear safty gear when changing bulbs even then I am always glad when the job is finished,it is always on my mind when changeing a bulb that it could explode without warning.I have known tech managers that change them without protective gear and they train popcorn people!They stopped doing it when a memo came out saying safety gear must be used,it should have never got to that stage. Some time ago I came across some places that didnt have the correct gear they soon did!------------------
Posted by Aaron Mehocic (Member # 15) on 02-07-2000, 12:45 AM:
Thank you to all who enquired about my condition. I'm OK, but needless to say, was shook-up for a few minutes on Wednesday night. To answer some of your questions:HOW DID IT HAPPEN: It was about 10:00 PM and I was changing an ORC XM2000 H/VC bulb out of a Strong Super Lume-X lamphouse. I've done this many times and I am no stranger to the proceedure (partially the reason why I did not feel the need to use a face mask). I unscrewed the bolted negative connection and made double sure that the bolt was loose. At this point, I unbolted the trigger wire from the positive connection and prepared a plastic case to lay the bulb in after removal. As I began to slide the bulb out of the negative connection I noticed it was tight. Immeadiately I realized this not going to be any ordinary change, but figured I could get the bulb out with no serious trouble and still did not feel the need to grab a mask. Slowly I worked it out of the tight connection. The forked bulb support bracket beyond the reflector did concern me as a possible hazard, but I figured I could get the bulb out by being slow and cautious. Suddenly the bulb pushed free and my slow momentum was enough to throw me of balance, thereby pushing the bulb into - you guessed it - the damned support bracket!
WHAT WAS IT LIKE: Imagine standing in a desert during a sand storm and every grain of sand blowing directly into your right shoulder. The explosion actually occurred as I was falling off balance and, oddly, the reflector saved my face from taking the glass that hit my shoulder. I saw the glass shoot out of the access pannel as if it was exiting the mouth of a cannon, very much and very compacted. When the glass hit my shoulder it felt strange at first, like someone touching you with their finger. Then it felt like hundreds of needles just pricking my skin, but not puncturing. I was wearing a regular polo shirt that night. At this point, I felt some chards of glass striking my glasses, maybe six or seven pieces, when a large hunk hit near the edge. I knew it had to be big because it made a hell of a noise when it bounced off the lens. Thats when it hit me that I didn't have a mask on and this shit was hitting my face! I also let out a fairly audible "Ahhhhhhhh!" (that goes without saying).
THE FINAL VERDICT: That above took less than three seconds I'd say. My first reaction was that there must be glass in my eye after all because I could feel something on my eyelashes. I hung my head straight down and walked downstairs to the concession stand for a free eye exam. Everything looked OK and the staff gathered around to marvel what just happend. The manager was surprized that I wasn't cut-up or bleeding profusly. Only two small blood blisters and a cherry red shoulder, LUCKY I'D SAY!
So yes Tim, I support the fact that glasses do save your eyes, because I'm certain that later on that night I would have been in the Emergency Room at Jameson Hospital instead of enjoying an MGD at Bingo's Lounge.
As far a the equipment is concerned, the reflector was undamaged, and since the dowser was closed, no glass was thrown into the projector head.
I hope my little story helps to bring about some of you who don't wear masks. To those of you who do, NOW I KNOW WHY!
Aaron
Posted by Masao Garcia (Member # 184) on 02-07-2000, 03:41 AM:
As a response to the "you might look silly for a few minutes with all the gear on", I don't really care. We have this ugly puke green (and checkered) apron thingy with a lot of padding and I walk around the lobby in it when I have to do stuff inside the lamp house. Sure, people stare, but so what? I put the dentist-looking face mask on backwards too. People get a laugh out of it and it's just something they don't see everyday. Heck, people see empty 6K reels sometimes and always have to make a comment like, "They still run film on those?" Hahaha, people are so ignorant.
Posted by Tim Reed (Member # 137) on 02-07-2000, 08:55 AM:
Aaron, you've been to hell and back! Go have another drink, you deserve it!
Posted by Jason Burroughs (Member # 68) on 02-07-2000, 09:42 AM:
Aaron, wow!Kinda scary, concidering how many times I've changed bulbs of all sizes from 2K up 7K without protective gear. Kinda makes you stop and think. Guess its kinda the "its never going to happen to me" thing. After seeing this though, I'll be wearing that protective gear... 
Posted by John Pytlak (Member # 331) on 02-07-2000, 12:00 PM:
In addition to the information provided by the xenon lamp manufacturers (I recall that Osram had a training video), an excellent discussion of xenon lamp safety is the NASA Lewis Safety Manual, Chapter 26, High Pressure Arc Lamps (Xenon):
http://ned-lerc.lerc.nasa.gov/lsm/lsm26.htm At Kodak, we always use a full face shield that covers the eyes and neck area, ballistic nylon/Kevlar flak jumpsuit, and heavy gloves.
------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Professional Motion Imaging
Eastman Kodak Company
Research Labs, Building 69, Room 7419
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com
Posted by Andy Davis (Member # 262) on 02-07-2000, 07:57 PM:
Aaron, just one question. Was the bulb hot when you were removing it?
Posted by Aaron Mehocic (Member # 15) on 02-09-2000, 10:44 AM:
The bulb had been lit for 3 1/2 hours earlier that afternoon during a showing of "Hurricane". I was told at 6:30 PM that the manager wanted the bulb changed, but I procrastinated the job because he has been known to pull good bulbs and toss them just to have a little brighter light for movies he wishes to sit down and watch. I tested the brightness at about 9:30 PM and found that a change was probably needed. The bulb was lit for probably two minutes during the test. I explicitly remember thinking that a half hour cooling time would be sufficient before removal. I also left the lamphouse blowers on right up to the time I was about to open the lamphouse access panel.
Posted by Tom Sauter (Member # 616) on 11-05-2001, 05:56 PM:
I almost had a 1kw xenon blow up on me this weekend while working on scaffolding. I noticed that none of the slide projectors' 5 cooling fans were running about 2 minutes after striking the lamp. The rear of the lamphouse was a few feet from my head... with me standing on the level below about 10' in the air. The only thing between me and that bulb was the reflector, a cooling fan, and my glasses.Now that I've changed my underwear, I'm going to put airflow sensors on those *%$&ing fans!
Posted by Will Kutler (Member # 770) on 11-05-2001, 06:12 PM:
The Christie SLC Xenon Console books -- which can be found in the MANUALS section of Film-Tech gives a complete list and requirements concerning safety gear to be worn while handling xenon bulbs. OSHA and your MSDS books should also have this info.Anyhow, I actually had a brand new Elmer Perkin xenon bulb explode on me as I was lifting it out of the box! The protective clothing as well as the heavy plastic bulb wrapper completly protected me and prevented debris from scattering around the booth! I only suffered a temporary heart rate increase 
!
Anyhow, how to handle your used bulbs. I always wrap the used bulb back up in the plastic cover. I then go to the garbage dumpster--and while wearing my protective clothing and using the dumpster door as an extra shield, I break the bulbs inside the metal dumpster.
Posted by Bill Enos (Member # 440) on 11-06-2001, 12:16 AM:
If you read some of the information supplied by manufacturers a number of years ago these are what was described as "non passive failure". I guess by that description a 500 pound bomb is a non passive weapon.
Posted by Gerard S. Cohen (Member # 994) on 11-07-2001, 07:14 PM:
For those who wear glasses, it's always safer to have the lenses made of plastic rather than glass when working with machinery or lamps.
For face protection, I used American Optical Co. shields, the same kind used when operating a chain saw, leaf blower or grinding wheel.
They cover from hairline to mid chest
I disposed of used bulbs ineligible for warranty return by rolling
them in an entire newspaper and hitting with a hammer, saving the tungsten anodes and cathodes which make nice balance scale weights.
I suppose a ballistically inclined hobbyist might find armor-piercing use for them, but they'd be hard on the lands and grooves of barrels,
being harder than steel? I saved the SS end pices, thinking to make
a + and - candellabra, but lost them when I had the garage emptied after my wife lost two cars to thieves, followed by three break-ins by
air-bag stealers. What uses do you guys put bulb parts to? And what do you do with used trailers after their run has ended?
Posted by Don Sneed (Member # 955) on 11-08-2001, 04:17 AM:
I was once training a new projectionist a few years ago in a manule house, just as we walked behind the #2 machine, the new operator asked me "what happens if the bulb blows up", just then the bulb did blow up, I said..."Like that...turn these switches off" !!! only happen once, if it had to blow it picked the perfect time !!
Posted by Mathew Molloy (Member # 666) on 11-08-2001, 04:17 PM:
A friend saw a 4K explode during operation and blowing out the lens and denting out the side of the lamphouse (he was in the auditorium at the time). Of course I had to be told that story before my first 4K lamp change and every time I had to change one of those out I sweat bullets. Especially the last time when one had welded itself to the back lead.
Also heard of one exploding when a projectionist forgot to remove the plastic cover before igniting the thing, but that was contained.
Posted by Ken Lackner (Member # 1002) on 04-25-2002, 05:56 PM:
When I was at my new theater today, the subject of bulb safety gear came up. Like many people I know, these projectionists never bother to use the safety gear. I always do. Anyway, one of the managers said that when the bulb is cool, it's not under any pressure, and even if it were to explode, the face mask and leather jacket wouldn't do anything. The glass would go right through. (He told the story of how one time he through a bulb into a dumpster, watched it explode, and saw fragments of glass in the metal! Thus, if it can puncture metal, it will puncture leather and plastic.) I guess he was basically trying to say that wearing the safety gear is a false sense of security. I do not agree. So, does anyone have any stories to tell of how wearing the safety gear did protect them in an explosion?
Posted by Will Kutler (Member # 770) on 04-25-2002, 06:17 PM:
Your manager is full of PHUGGIN 
! Safety gear is OSHA approved and does work. If you do not follow proper safety procedures and you are injured, it is your ass! But if you do follow the proper procedures and are injured, your ass is covered! Your manager is feeding you a line! Cover you own ass and do not risk your health!I already posted a long time ago about what happened to me. I went to lift a brand new Perkins Elmer bulb out of its box and the damn thing exploded in my hands! The protective wrapper plus the safety gear: mask, apron and gloves saved my ass! But it did make me jump a little !
Posted by Paul G. Thompson (Member # 655) on 04-25-2002, 07:34 PM:
Ken:The manager is slightly and dangerously mis-informed!!!!
Posted by Jan Hackett (Member # 1231) on 04-25-2002, 10:47 PM:
30 pounds of pressure per cubic centimeter. Enough reason to always wear saftey gear. ------------------
Jan Hackett
Theater Operations Manager
Extreme Screen Dynatheater
NM Museum of Natural History Foundation
Posted by Jerry Chase (Member # 660) on 04-25-2002, 11:40 PM:
Ken, I'll be gentle with your "manager." Anyone who publicly suggests that NOT wearing safety gear is fine is setting themselves and their company up for an injured employee to sue both the company and the manager. Some bullets go through bulletproof vests too. Cops still wear the vests. Continue using safety gear. Regal executive lurkers, smells like time for a strongly worded memo to the troops. Be thankful for employees that want to do things right.
Posted by Ken Lackner (Member # 1002) on 04-26-2002, 12:50 AM:
Thanks guys. And remember, my new theater isn't Regal.
Posted by Ken Lackner (Member # 1002) on 04-26-2002, 12:53 AM:
ROFLMAO!!! Thanks for the title, Brad! 
Posted by Paul Konen (Member # 41) on 02-15-2004, 02:22 AM:
At least my "booth ghost", who became visible today because of the snow in Dallas, wears his gear. Either he is trying to practice his Matrix moves or his is just getting tired of changing bulbs. ![[Smile]](smile.gif)
It does appear that he forgot his gloves!
Posted by R. Andrew Diercks (Member # 1725) on 02-15-2004, 01:10 PM:
I changed a 1k bulb in a small auditorium last year. The bulb was held very securly by the negative post. I tried to twist it loose, when I suddenly heard the gas escape the bulb and the ![[bs]](graemlins/bs.gif)
escape my rectum. ![[Razz]](tongue.gif)
It sounded like a tractor tire letting out air in a rush. Luckily no explosion, but it gave me one hell of a warning.
Posted by Matt Jahans (Member # 1508) on 02-16-2004, 10:15 AM:
I saw this thread and thought that I'd add a few words. Apologies in advance if I cannot reply immediately as I am often on site visits, so not at my desk.
It's good to see this topic being highlighted. It’s amazing how many people are not aware of the risks. At TLS UK Ltd. we offer Xenon lamp training for our customers (also the BKSTS technical road show) and explosion safety is a big topic.
To begin with a Xenon lamp when cold is at 8 - 10 BAR of internal pressure, once ignited this increases to 30 BAR until the lamp cools; this is the reason why the lamp is explosive.
As highlighted in previous posts, it is advisable to wear protective equipment: Full-face visor, Kevlar Jacket and gauntlets. I would also recommend returning the lamp to its safety case as soon as possible during lamp removal, not all lamp houses allow this until the lamp is removed through the mirror. This safety case does contain an explosion provided it is of a sturdy build - OSRAM's for example. I personally wouldn't like to test an ORC or LTI cellophane wrap.
Reasons for explosion: The three most common reasons for explosion tend to be Recrystallization, Transit Damage and Mis-handling.
1) Recrystallization (or de-vitrification) means that the structure of the quartz glass changes from the glass phase back into the crystalline phase. This is caused by high bulb temperatures, typically 700 degrees C, and a temperature cycle.
This initially causes the glass to lose its strength and can be seen in advance stages as opaque areas. After 25% above warranty life, an XBO lamp has usually recrystallized to such an extent that there is a considerably increased risk of the bulb bursting. For this reason be very careful if you are running your lamps for many hours. If due to financial reasons you are forced to run your lamps more than 25% above warranty, do regularly inspect the bulb glass - if any signs of abnormal white / greyish marks are seen, remove the lamp immediately.
2) A lamp can sometimes be damaged during delivery; lorry drivers not handling lamps correctly can cause such transit damage. This usually weakens the graded seals on the lamp, which can cause an air leak and in extreme circumstances an explosion. Transit damage will usually be noticed within the first 50 - 100 hours.
3)Mis-handling damage usually occurs if a projectionist applies force through the bulb glass on installation. A typical example would be a threaded negative pin lamp being screwed by twisting from the positive end; all the twisting motion is applied through the glass. This damage again will manifest early in lamp life.
REMEMBER: There is enough energy stored in the lamp bulb to send quartz splinters flying several meters across a room if a lamp bursts.
The above information relates to OSRAM and other reputable brands Ushio / Christie etc. Some of the cheaper brands are likely to re-crystallize earlier, be careful.
I hope this was of interest
Regards
Matt Jahans
Posted by John Pytlak (Member # 331) on 02-16-2004, 10:53 AM:
I've said it before, and I'll say it again. I you don't wear a full face shield to protect your eyes, that exploding lamp will likely be the last thing you'll ever see. ![[Eek!]](eek.gif)
And quartz shrapnel doesn't show up on x-rays, so the doctors have to pick it out of your body one tiny piece at a time! ![[uhoh]](graemlins/uhoh.gif)
Posted by Chris Hipp (Member # 1788) on 02-16-2004, 07:16 PM:
One thing that I really like about LTI bulbs is that you can actually keep the protective case on until the bulb is installed.
I leave the velcro strap on the postive end until the bulb is in, then I take it off, pull the top piece of the case off, slide the bottom piece to the top and take it off.
I had to do an emergency changeout today and the bulb had about 2 minutes of forced cooling and 10 minutes to cool in the plastic case. I popped the bulb and it did not puncture the plastic case. Thus, the logic "it goes through steel" is a fallacy. I will post pictures of the case tomorrow.
Posted by Alexander Smith (Member # 1769) on 02-16-2004, 07:19 PM:
I also "choose life" and wear full safety gear when handling xenons. Last month my co-worker
and I had a nasty reminder of the reason for wearing full safety gear. A lamp exploded twenty
minutes in to the tea-time show.
Very loud bang and two very nervous projectionists! (And slightly damaged mirror also)
There's a bit about it towards the bottom of this:
http://homepages.enterprise.net/alexsmith/projection/Tech.html
Alex
Posted by Brad Allen (Member # 470) on 02-17-2004, 12:12 PM:
Can someone name specific brands as to what safety gear should be purchased?
Is this something Grainger would most likely have?
Posted by Frank Angel (Member # 248) on 02-17-2004, 12:33 PM:
OSRAM has had a video tape available which details the correct handling of xenon bulbs include a very attention-getting section on their dangers. I think it is available free for the asking, or at least at the time you are buying bulbs.
I am glad Brad A. asked that question about sources for this gear; used to be that the entire protective gear kit was available from the bulb manufacturers, OSRAM at lease, but now you need to hunt around for each piece. I see lots of "work gloves" in hardware stores, but what are the types that would actually provide enough protection when handling an exploding bulb? Same thing with those jackets -- are the ones made from the tyvik (sp?) material really good enough to stop those exploding shards of quartz from turning me into a human pin-cushion? Anyone know of single source for a complete "kit" assembled specifically for explosion protection?
Frank
Posted by Randy Stankey (Member # 64) on 02-17-2004, 12:57 PM: