Redundant PSTN Extension Socket: Can Cables Safely be Buried in Plaster?

[FrustratedCustomer68]

I have recently changed from PSTN to digital voice. I have a wall-mounted extension socket in a bedroom that is now redundant and would like to remove the box, which protrudes from the wall, cut back the telephone cable, and embed the cable end in plaster. Is it safe to do so? I assume that the PSTN cables to the property are no longer at ~50V, but can I rely on this?

The extension socket is connected via an inaccessible cable run to the back end of my NTE5 face-plate, and I don't feel qualified to remove the plate and then disconnect or cut the cables there.

Thanks in anticipation.

[jac_95]

Hi FrustratedCustomer68,

Thanks for the post and welcome to the Community.

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[iniltous · Accepted solution]

You can do what you want with the extension socket as it’s yours , even if there is still temporarily 50v it’s not dangerous, make sure the extension cable isn’t shorting out by using something like insulation tape on the exposed ends when hidden in the wall .

[licquorice]

It would be far preferable to disconnect the extension wiring at the master socket as well.