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in WiFi / Wireless by
I need to run a cat 5e cable in an underground duct with an armoured mains cable. Is it ok or should the cable be shielded?

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by Bronze member (4.5k points)

If both the data and power cables are shielded they can be run together without issue. If either cable is un-shielded however there should be some separation.

The following can be used as a guide to the required separation although there are other factors that can affect potential interference so it's advisable to seek the advice of a qualified electrician.

Cable combination Without divider With divider
Unscreened power / Unscreened data 200mm 100mm
Unscreened power / Screened data 50mm 20mm
Screened power / Unscreened data 20mm 10mm
Screened power / Screened data 0mm 0mm

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