>There is a company called Com-Omni (sorry, the book is at the other
>job), that does alot of lighting protection devices and has some good
>discussions on protection.  I'll get the 800 number if ppl need it.
>
>
>> I am putting together a small network of PIC data loggers, at the top
>> of
>> ten foot poles, RS485 networked together, buried power and net cables.
>> What should I worry about re lightning, etc, and how do people
>> typically
>> protect devices (not to mention the expensive PC at the end of the
>> network:
>> I did absorb the advice about opto-isolation for the PC).  Pardon me
>> if
>> this is a previously beaten horse, I'll search the archive too.
>>
>>

Poly-Phaser Corporation has a very complete line of protection hardware,
tutorials, reference material and a periodic newsletter for the engineer.
They're at www.polyphaser.com. Just a matter of information, I don't own
stock or anything.

Reg Neale