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Melted E39 socket

Melted E39 socket

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I discovered this melted socket in the Unistyle while I was getting it ready for shipping. The lamp was stuck to the tab and almost broke off when I unscrewed it. it's not pulse rated, so could that have something to do with it?

LPS.jpg SAM_1077.JPG SAM_0913.JPG 3215A31300000578-3487178-image-a-11_1457697863405.jpg

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Filename:SAM_0913.JPG
Album name:Lumex120 / Other
Keywords:Miscellaneous
File Size:401 KB
Date added:Jul 07, 2017
Dimensions:2464 x 1848 pixels
Displayed:137 times
Date Time:2017:07:04 09:44:01
DateTime Original:2017:07:04 09:44:01
Exposure Bias:0 EV
Exposure Time:1/45 sec
FNumber:f 8.9
Flash:Flash, Auto-Mode
Focal length:4.9 mm
ISO:80
Make:SAMSUNG
Model:SAMSUNG PL20,PL21 / VLUU PL20,PL21
Software:1106214
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don93s
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Jul 07, 2017 at 05:54 PM Author: don93s
Probably a weak connection to the base tip causing high resistance and hot spot. This is more common with base-up 400w MH fixtures, as those get incredibly hot and corrodes the brass tab and weakens the solder.
streetlight98
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Mike McCann


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Jul 07, 2017 at 06:41 PM Author: streetlight98
Yikes! Yeah the whole pulse rated thing doesn't seem all that important. I've lit HPS lamps from incandescent sockets and nothing happens as long as the lamp is seated firmly in the socket. Anyway, thanks to the internet mogul sockets are easy and cheap to come by. Otherwise common folk like us would find it hard (and expensive) to get mogul sockets. You'd probably have to order one through an electrical supply place and face like a 150% markup.

If it's just the center contact that's beat up you might be able to salvage the center contact off another mogul socket (maybe one that's got broken ceramic) and install it on this socket if they're compatible. Most mogul sockets use pretty much the same parts for the shell and contact.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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Jul 07, 2017 at 07:19 PM Author: Solanaceae
I have a pouch of parts from broken sockets I could use to fix it if it's not too late.

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Men of God
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Jul 07, 2017 at 07:31 PM Author: Men of God
这貌似是接触不良导致的!

我不会英文,所以我用中文,请你们用翻译网站翻译我打的字!

I can't in English, so I in Chinese, please use the translation website to translate my words!

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sam.rinne.75 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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Jul 07, 2017 at 08:17 PM Author: Lumex120

I have a pouch of parts from broken sockets I could use to fix it if it's not too late.

I sent along a spare Cooper socket instead. It's in a plastic bag along with the ignitor from that 200w HPS ballast. And yes, I sent the F40T12 preheat ballast too.

Any machine is a smoke machine if you operate it wrong enough.

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Jul 07, 2017 at 09:03 PM Author: Solanaceae
Thanks bud.

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Nov 20, 2017 at 06:45 PM Author:
I think the difference between standard sockets and pulse rated sockets is the spring under the tongue for extra tension so the high voltage pulse doesn't cause arcing and the tongue and shell of the socket is made of stainless steel to eliminate corrosion.
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