The phone lines are current limited [controlled] to prevent homeowners
from blasting the switchboards out when they do their inept 'thing'. It's
called circuit protection.
Don't know exactly what the limit is but it's low enough that only a tiny
spark can be produced by shorting the wires, it's low enough that holding
onto both wires with dry fingers can't 'usually' be felt. {I hook em up,
strip live wires etc, all the time}
The ringer runs a 100v [pulsed?] surge through the same wires. Don't hang
onto them and get or make a phone call. [not deadly but it hurts]
A short duration surge won't affect the CS.
Ken
At 04:10 PM 12/30/01 -0600, you wrote:
>Evening Reid,
>
> >Terry Chamberlain's approach, especially with the close proximity and
>>curiosity of my two sons, five and nine. They do not need to be
>>electrocuted.
>
> Was your goal to use 110 VDC? If not....... settle for 52 VDC and use
>the phone line power.
>
>I have never heard of anyone getting electrocuted by this voltage. Likely
>I came the closest.... but that was with the help
>of lightning.
>
>Depending on how much you want to make and what your goals are, I don't see
>how anyone can do much better
>that using the FREE voltage that sits everywhere waiting to be harnessed to
>this application.
>
>The time factor is much better than any 6, 12, 18, 24, or 27 volt
>device. Unless one is using a current limiter or some device with control
>ability, The 52 volt phone gen is ideal cheap, safe, and easy to use.
>
>Many systems may be better, but not cheaper or more convenient ...... or
safer.
>
>Wayne
>
>
>
>
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