Dave,
That explains why our utility company considers both terms the same on
responding to a customer call.
Thats Interesting Dave, I didnt know the difference.
Bob
K6UJ
On May 25, 2013, at 4:05 AM, K1TTT wrote:
> Even places where they try to define a difference admit that common usage
> often confuses the terms:
> http://depts.washington.edu/vehfire/ignition/electrical/arcdef.html
>
> Historically a spark was usually considered a short duration event where an
> arc was an on-going event... thus a spark-gap transmitter worked because it
> created many short duration sparks as the gap rotated, but an arc lamp
> produced a continuous discharge. Some places will also consider the voltage
> needed. Typically the spark-over voltage required to bridge a gap is much
> higher than the arc maintaining voltage, which is why an arc welder or arc
> lamp can maintain its arc when the electrodes are separated after the
> initiation.
>
> So looking at your definitions below... the critical item is the time... the
> spark is 'short duration' where the arc has no specific duration.
>
> Dictionary Definitions :
>
> Arcing:
> A luminous discharge of electricity across a gap between electrodes.
>
> Sparking:
> A luminous disruptive electrical discharge of very short duration between
> two conductors separated by a gas (as air)
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt@arrl.net
> web: http://wiki.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://k1ttt.net
>
>
>
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