Re: X-Ray Transformer VERY Scarred!

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

Hi Bert, all,

On 3 May 2005, at 17:21, Tesla list wrote:

> Original poster: Bert Hickman <bert.hickman@xxxxxxxxxx>
>
> Tesla list wrote:
>
> >Original poster: "Paul Marshall" <klugmann@xxxxxxxxxxx>
> >The easy way to tell if it is PCB oil is to drop a drop in a glass of
> > water. if it sinks to the bottom it is PCB oil. If it floats to the
> >top it is just transformer oil. Also remember PCB oil is a General
> >electric product. If your transformer was made by someone else it is
> >probably safe...
> >
> <snip>
>
> Hi Paul and all,
>
> It turns out that GE never used PCB's in their X-ray transformers, so
> if an X-ray transformer is made by GE you're OK.   :^)
>
> PCB's were manufactured by a number of suppliers including GE. Some of
> the various trade names that you might find stamped on capacitors or
> transformers containing PCB's include the following:
>
> Aceclor                 Hivar
> Apirolio                Hydol
> Arochlor B              Hyvol
> Arochlor                Inerteen
> Asbestol                Kaneclor
> Askarel                 Kennechlor
> Bakola 131              Montar
> Bichlor                 Nepolin
> Chlorextol              No-Flamol
> Chlorinated Biphenol    PCB
> Chlorinated diphenyl    Permatol
> Clophen                 Phenoclor
> Clorphen                Pydraull
> Chlorinal               Pyralene
> Diachlor                Pyranol 1470 (transformers) (GE)
> DK                      Pyranol 1476, 1499, 1478, 1467 (capacitors)
> (GE) Disconol                Pyraclor Duconol                 Nepolin
> Dykanol                 Saf-T-Kuhl EEC-18                  Santotherm
> Elemex                  Siklonyl Eucarel                 Solvol
> Fencholor               Therminol Fenclor                 Visconol
>
> Best regards,
>
> -- Bert --

According to a comprehensive NZ Health Dept. list, Visconol is
essentially PCB-free as it contains no detectable PCBs above 10ppm.
According to a range of other sources some visconols contain a
significant quantity of PCBs and others don't. I did a flame colour
test on some out of a leaking old oil/paper cap and found that
particular lot didn't.

Malcolm