Transformer bunding question?

[BIGEYE]

Under UK rules & regs, is there a requirement to bund fluid filled
transformers to contain any insulating fluid leakage? This will be a new
transformer installation and the fluid will be Midel. There are other
transformers on site and these are not bunded.

TIA

 

[James Sweet]

I don't know but I can share some thoughts. I see Wikipedia actually
hints 'yes' on your specific question

http://en.wikipedia.org/wiki/Bunding

a short ways into the page, though I would have said, over here, no, I
do not see containment around transformers. Also, if I were to spec a
liquid filled padmount medium voltage transformer it would probably be
filled with vegetable oil and not harmful to the environment.

j

Vegetable oil? Doesn't that stuff go rancid? I would certainly not fill
a transformer with anything not designed for the job, doing so would
leave one wide open to liabilities.

So long as the transformer oil stays in the transformer and is properly
recovered if the unit is ever scrapped, I don't see there being much of
an environmental issue.