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09-10-2009, 07:27 PM
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#1
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Member
Join Date: Mar 2009
Location: rgv,tx
Posts: 83
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Preagnant MH lamps
One of our crews went out to troubleshoot some fixtures (10 total) and found 9 with the lamps deformed as follows:
p_00258.jpg
p_00257.jpg
p_00259.jpg
I have never seen a lamp do this, just shattered lamps. What would cause them to do this? BTW they are indoors, 5 ballasts are no good either, and one fixture remained working.
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09-10-2009, 07:42 PM
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#2
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Senior Member
Join Date: Sep 2009
Location: USA
Posts: 165
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Heat and gravity?
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09-10-2009, 07:48 PM
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#3
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Member
Join Date: Mar 2009
Location: rgv,tx
Posts: 83
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Quote:
Originally Posted by BadSplice
Heat and gravity?
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Very wise grasshopper  What I'm wondering is why they heated up in that fashion instead of burning up or shutting off. Is it a defect of the lamp or can that happen at end of life?
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09-10-2009, 08:28 PM
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#4
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Senior Member
Join Date: Apr 2009
Location: central east coast us
Posts: 330
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too much sex ?
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That tiger ain't go crazy; that tiger went tiger! You know when he was really crazy? When he was riding around on a unicycle with a Hitler helmet on! - chris rock
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09-10-2009, 08:32 PM
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#5
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Rat Extraordinaire
Join Date: Sep 2007
Location: Iowa
Posts: 6,792
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Quote:
Originally Posted by wildleg
too much sex ?
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I wish I had that problem, but once is all it takes. 
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09-10-2009, 08:37 PM
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#6
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Member
Join Date: Mar 2009
Location: rgv,tx
Posts: 83
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Quote:
Originally Posted by wildleg
too much sex ?
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should've had the tubes tied first huh?
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09-10-2009, 08:40 PM
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#7
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Rat Extraordinaire
Join Date: Sep 2007
Location: Iowa
Posts: 6,792
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Quote:
Originally Posted by fraydo
should've had the tubes tied first huh? |
That's what happens when the lights go out........ 
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All responses based on the 2008 National Rat Code.
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09-10-2009, 08:43 PM
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#8
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Senior Member
Join Date: Feb 2009
Location: Long Island, N.Y.
Posts: 2,185
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I bet it was cheap glass the Chinese use since we stopped buying their sulfur impregnated drywall
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09-10-2009, 08:44 PM
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#9
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Rat Extraordinaire
Join Date: Sep 2007
Location: Iowa
Posts: 6,792
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Quote:
Originally Posted by Black4Truck
I bet it was cheap glass the Chinese use since we stopped buying their sulfur impregnated drywall |
I thought it was lead-laced toys.
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09-10-2009, 08:46 PM
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#10
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Senior Member
Join Date: Feb 2009
Location: Long Island, N.Y.
Posts: 2,185
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Quote:
Originally Posted by 480sparky
I thought it was lead-laced toys.
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That was after the lead laced toothpaste 
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09-10-2009, 09:07 PM
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#11
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Rat Extraordinaire
Join Date: Sep 2007
Location: Iowa
Posts: 6,792
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Quote:
Originally Posted by Black4Truck
That was after the lead laced toothpaste |
Well, that certainly would explain a lot!
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09-10-2009, 09:09 PM
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#12
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Senior Member
Join Date: Feb 2009
Location: Long Island, N.Y.
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09-10-2009, 09:09 PM
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#13
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Service Tech
Join Date: Sep 2009
Location: Florida
Posts: 22
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Who is the manufacturer of the lamps?
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09-10-2009, 09:10 PM
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#14
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Rat Extraordinaire
Join Date: Sep 2007
Location: Iowa
Posts: 6,792
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Quote:
Originally Posted by Black4Truck
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Yeah, well, that's the 'before' picture. I took this of myself yesterday:
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09-10-2009, 09:15 PM
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#15
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Senior Member
Join Date: Feb 2009
Location: Long Island, N.Y.
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LMAO.. you always find a way to "better" yourself 
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09-10-2009, 09:18 PM
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#16
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Rat Extraordinaire
Join Date: Sep 2007
Location: Iowa
Posts: 6,792
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Quote:
Originally Posted by Black4Truck
LMAO.. you always find a way to "better" yourself |
I just can't wait until tomorrow, cause I get better looking every day!
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09-10-2009, 09:36 PM
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#17
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Member
Join Date: Mar 2009
Location: rgv,tx
Posts: 83
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Quote:
Originally Posted by jahaiap
Who is the manufacturer of the lamps?
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To be honest I didn't look. I just loaned the other tech a 12' ladder when he went back to install the new lamps
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09-10-2009, 10:53 PM
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#18
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Floppy Member
Join Date: Jul 2009
Location: Sebring, FL
Posts: 93
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Quote:
Originally Posted by wildleg
too much sex ?
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Valtrex might help clear that up. And help keep it from coming back.
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09-11-2009, 07:09 AM
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#19
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Ratus Maximumus
Join Date: Apr 2009
Location: South Eastern MA
Posts: 1,340
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My first guess is simply lamp / ballast incorectly matched.
My second would be a lamp was used outside of its operating range.
Some lamps are horizontal burn, some are vertical burn and others are univerasl burn.
Quote:
EFFECTS FROM IMPROPER ORIENTATION
The Arc tube may become bulged or swollen. After extended operating hours some bulging is normal, especially in the off-vertical burning position. If a lamp bulges prematurely, this condition may indicate the lamp is operating at a higher-than-rated wattage due to miswiring, using the wrong lamp on specific ballast or the fixture optical system is directing too much heat onto the arc tube. This problem must be corrected or else the lamp may unexpectedly shatter.
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http://www.geappliances.com/email/li...rientation.pdf
__________________
Bob Badger
Electrical Construction and Maintenance
MA, RI, CT
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09-11-2009, 05:08 PM
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#20
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Lighting Contractor
Join Date: Aug 2009
Location: Fort Worth, TX
Posts: 190
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Quote:
Originally Posted by Bob Badger
My first guess is simply lamp / ballast incorectly matched.
My second would be a lamp was used outside of its operating range.
Some lamps are horizontal burn, some are vertical burn and others are univerasl burn.
http://www.geappliances.com/email/li...rientation.pdf |
Looks like it's worth check lamps and ballasts, and voltage. Yikes. 
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