[RFI] Filtering 220VAC : Success

[john at kk9a.com]

Excellent post Frank.  Thanks for bringing attention to the dangers of using
the wrong capacitor type.

John KK9A

Frank W3LPL wrote:

Please be very careful about applying W9IP's experience before his
good advice causes major property loss or someone gets badly hurt
or worse...

Capacitors must never -- must never! -- be connected to AC mains
unless they are clearly marked as X-Class or Y-Class. 
No exceptions!  Human life is at stake!

Capacitors not clearly marked as X-Class or Y-Class must never
--must never!-- be connected to AC line voltage. They must -- must! --
be behind a fuse or circuit breaker or other suitable AC line
protection device.
No exceptions!  Human life is at stake!

Capacitors connected between AC line voltage and the AC neutral line
must -- must! -- have self-healing properties in case of arc-over.
Acceptable capacitors are always very clearly marked as X-Class,

Capacitors connected between AC line voltage and ground must -- must--
use a capacitor that will never -- will never! -- fail as a short
circuit from AC line to ground, which can compromise safety and human
life.  Capacitors designed for safe connection between AC lines and
ground are always clearly marked as Y-Class

Safety first.   Please!

73
Frank
W3LPL