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
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