Shielded F/UTP cables + shielded connectors with ungrounded switch - a mistake?

[sl4fko]

A title says it all. I have such a configuration with shielded CAT6 and CAT5e cables connected to a basic 8 port gigabit TPLINK switch, which however is not grounded.

Do cables act like an antenna in my case? Should I buy a grounded switch? Looking at this one: https://www.amazon.com/Tenda-TEM2010X-Aggregation-Unmanaged-Switching/dp/B0D48BLXQL?tag=snbforums-20
It has a screw for grounding on the back...

 

[ColinTaylor]

I doubt the cable will be a problem. How long are they? Are you putting them in a hostile RF environment, like next to electric motors?

P.S. Please remove the white colour attribute from your signature text. It makes it unreadable if not using a dark theme.

 

[tgl]

I believe a cable shield is supposed to be grounded on one end but not the other (else you risk a ground loop). So it depends on how you have the far-end connections set up.

 

[Twiglets]

I doubt the cable will be a problem. How long are they? Are you putting them in a hostile RF environment, like next to electric motors?

P.S. Please remove the white colour attribute from your signature text. It makes it unreadable if not using a dark theme.

From experience the lack of grounding should not be a problem for 'normal lengths of cable' !!!
As alluded to 'Hostile RF Environment' is a bigger problem or excessively long cables (outside the length spec for CAT5e/CAT6 cables).

Good cables can 'sometimes' operate beyond the specified max length BUT this is down to luck and not guaranteed to work !!!
Best to work to the CAT5e/CAT6 spec and then you can complain if the cables do not perform !!!

 

[sl4fko]

I doubt the cable will be a problem. How long are they? Are you putting them in a hostile RF environment, like next to electric motors?

P.S. Please remove the white colour attribute from your signature text. It makes it unreadable if not using a dark theme.

The longest is aboat 15 meters. What worries me is a 220V (consumers take 5-7 Amps of current) electrical cable in the same guide pipe in the wall...

Funny thing is that there is a metal backplate on both router (GT-AX6000) and switch (TP-LINK SG108-V2) but also BOTH are not grounded...

 

[ColinTaylor]

The longest is aboat 15 meters. What worries me is a 220V (consumers take 5-7 Amps of current) electrical cable in the same guide pipe in the wall...

Funny thing is that there is a metal backplate on both router (GT-AX6000) and switch (TP-LINK SG108-V2) but also BOTH are not grounded...

Given what you've just said I don't think the cable will be a problem. It might not give you any particular benefit, but I don't think it will make things worse (compared to UTP).

If you wanted to protect the devices from someone cutting through both cables and creating a short you'd need to replace the switch with one that has a mains referenced earth.

 

[degrub]

i believe per electrical code, placing low voltage cables in the same conduit as 120/240 and higher is not allowed. Period.

Not to mention the likelihood of normal mode noise on the ethernet cable at 50/60 cycles.