In article ,
clifto wrote:

yea right wrote:
The best way to block BPL from you home is to place .01uf caps between
your mains and ground after the meter on YOUR wiring.

Aside from the comments others have made, you can't just grab any old caps
and put them on the AC line, as several television manufacturers found out
the hard way during the sixties and seventies. Caps for power line use are
specially constructed.

If I remember correctly capacitors across AC lines at the input to
electronic or electrical devices are supposed to have certain safety
agency rating and are known as Y and X type capacitors.

Here is an informative PDF
http://www.evox-rifa.com/technote_pdf/rfi_fact.pdf

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Telamon
Ventura, California