[time-nuts] HP and other equipment failure

Poul-Henning Kamp phk at phk.freebsd.dk
Mon Jun 17 17:39:34 UTC 2013


In message <51BF15A8.40803 at earthlink.net>, Jim Lux writes:

>The issue also arises with fluorescent [...]
>
>  As folks transitioned to the newer ballasts, the non-sinusoidal 
>current problem probably got worse.

I don't know about US, but in EU they must have PFC correction, and
the ones I've seen do, because the PFC circuit makes for a neat way
to ignite the tube first time.

PS: The fact that you get about 10-20% more light (due to the high
frequency drive) and longer lifetime (no burnouts) are good reasons
to upgrade.  Here in .dk it's often cheaper to buy a new armature
with tube, than a spare tube...

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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