Hi,

The building's power installation must comply with IEC 364 or equivalent local code. LAN cable runs should not coincide with the path of lightning conductors, and they should preferably be insulated from the outside surfaces of buildings, especially roofing. The cable also should not run down elevator shafts or located near electrical transformers, etc. due to ElectroMagnetic Interference.

Assuming that you are using ThinLan cables, they already should have a good shielding inside the cable. Otherwise, I guess that you could use regular metal conduit, run your LAN cable through it and attach that conduit to a known-good ground to eliminate or reduce the chance of EMI.

If you're looking for specific distances, that all depends on the particular application...220 volts by itself is not necesarrily a problem, it's the current running through that power line that develops EMI, etc.

Hope this helps you out somewhat...Good Luck!
DonJ


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Hey, it's all FM to me!


[This message has been edited by DonJ (edited February 06, 2001).]