In ,
terry typed:
On May 30, 1:40 pm, Smitty Two
wrote:

AFCIs must therefore detect momentary breaks
(intermittency?) in the circuit?????????????

And the AFCI feature is built into the circuit breaker;
correct?

Cos many bedside lamps etc. have two (usually now
polarized) wire plugs often plugged into duplex outlets
behind beds and other furniture. Sometimes with a
multiplicity of those darn el-cheapo adpters; again.

Reminds me also; have a defective (open circuit) duplex
GFCI outlet in wall of outside shed I must replace.

Thanks for any AFCI info.

http://www.arcadvisor.com/afci.html

From UL:


Quote:
This category covers arc-fault circuit interrupters (AFCI) intended to
mitigate the effects of arcing faults that may pose a risk of fire ignition
under certain conditions if the arcing persists.

These devices have been investigated to determine their ability to
recognize and react to arcing faults. They have also been investigated to
determine resistance to unwanted tripping because of the presence of arcing
that occurs in control and utilization equipment under normal operating
conditions and to verify that operation is not unduly inhibited by the
presence of loads and circuit characteristics that may mask or attenuate
unwanted arcing.


It's alway amazing how lazy people can be to not bother to search out
information themselves when it's so readily available.
HTH,
Twayne`