On 2012-11-13, Volker Armin Hemmann <volkerar...@googlemail.com> wrote:
> Am Montag, 12. November 2012, 23:03:08 schrieb Peter Humphrey:
>> On Monday 12 November 2012 17:39:15 Volker Armin Hemmann wrote:
>> > ... more and more transformers are filled with non-oil coolants.
>>
>> That's interesting - what other substances are used instead these days?
>> In my day we had nothing but mineral oil.
>
> ethers?
silicone
fluorocarbons (dunno which ones)
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