Author Topic: How can I operate a germicidal UV lamp safely?  (Read 3577 times)
RRK
Member
*****
Offline

Gender: Male
View Posts
View Gallery
Roman


Re: How can I operate a germicidal UV lamp safely? « Reply #15 on: October 15, 2024, 01:13:16 PM » Author: RRK
Personally, I think it is a bad idea. Window film is not designed to contain UVC, as there is almost none of it at the earth surface.

You are asking in a wrong place. Film manufacturer may know better.

Logged
RRK
Member
*****
Offline

Gender: Male
View Posts
View Gallery
Roman


Re: How can I operate a germicidal UV lamp safely? « Reply #16 on: October 15, 2024, 01:25:40 PM » Author: RRK
Should it be safe to operate germicidal tubes in fluorescent fixtures that have milk glass diffusers? I have a couple of 4 foot fixtures that have milk glass diffusers that I am considering running G36T8 tubes or G40T10 tubes inside.

Most of the time probably OK. I won't risk though. If you want a nice low pressure mercury color tubular lamp, go to a friendly local neon maker and ask for a mercury filled tube in clear glass. Cute and guaranteed 100% UV safe. You can order even Ne + Hg fill for some awesome effects!


Also, shining strong UVC on plastic diffusers may turn them yellow/brown rather quickly, ruining a look of otherwise nice fixture.


« Last Edit: October 15, 2024, 02:09:44 PM by RRK » Logged
sdsw4
Member
**
Offline

View Posts
View Gallery


Re: How can I operate a germicidal UV lamp safely? « Reply #17 on: October 18, 2024, 07:55:26 PM » Author: sdsw4
I would say it depends on your goal.

I have a small germicidal lamp that I use for PCB exposures, and in that case it's in a small box with good light seals. The way I know it's running is based on when the starter stops and the blue light that goes through the tombstones.

But for a demonstration, depending on the diameter, you could get some glass blowing tubes and that would block out most of the UV, while still retaining the tube look. And optionally UV block film if you want to be really safe.
Logged
RRK
Member
*****
Offline

Gender: Male
View Posts
View Gallery
Roman


Re: How can I operate a germicidal UV lamp safely? « Reply #18 on: October 19, 2024, 01:02:37 AM » Author: RRK
Are you sure using germicidal, and not UVA lamp for PCB exposure? Most resists AFAIK are tuned to UVA light, there is just very low level of 365 nm UVA in germicidal lamp output, and UVC radiation at 254nm is not optimal and even can trigger wrong reactions.
Logged
sdsw4
Member
**
Offline

View Posts
View Gallery


Re: How can I operate a germicidal UV lamp safely? « Reply #19 on: October 25, 2024, 07:13:23 PM » Author: sdsw4
It's working meh for me, even though sensitized PCB peak is UVA. I can never find a definitive answer, people say it's fine others say not to. Majority of people saying not to mentions the UVC damage to the body. Most of the issues come from my shoddy mask than anything else.

I have a few tubes that claim to emit straight UVA, will try those when this tube burns out in 10 years.
Logged
Print 
© 2005-2024 Lighting-Gallery.net | SMF 2.0.19 | SMF © 2021, Simple Machines | Terms and Policies