Dedicated lines

I agree with Stanwal, you already got the big bang going with dedicated lines, a splice will not kill those great results.

I would twist the pairs together and seal with a Scotchlok and rubberized tape to reduce air transfer to the connection. You might notice a drop in performance when you first do this but after the new Romex is run in a bit performance should be where you were.

Goes without saying, stay with 10 gauge on both sides of the spice, don't let an electrician talk you into dropping the 10 to a 12 at the splice.

Last thing, most city code on electrical requires a splice to be a box. You might use your current boxes for the spice (obviously REMOVE the AC sockets there) and run the new. If you ever want to reverse the arrangement you only need remove the blank cover.

When running dedicated lines, should I be using romex single solid core cabling or a twisted pair of stranded cabling? My electrician has recommended a hospital grade cabling that he is recommending I use for running new dedicated lines.

Markus1299, assuming you use the same wire to extend the length of your three dedicated lines, after break-in, I don’t think you will hear a difference in sound or have any type of voltage drop..

Ckoffend, I don’t know what “hospital grade cabling” consists of that your electrician is recommending. I remember reading years ago that 10 gauge stranded cabling with ground twisted (such as put in drill and twist while elongating) is the way to go. This must then be run in conduit. It’s usually easier and costs less to run Romex, and I’m not convinced that you will hear a difference in sound.

The only hospital grade cable I am aware of is type AC or MC (armored) hospital grade cable.

http://www.afcweb.com/pdfs/afc_cable_catalog/afc_hcf_lite_120_0704.pdf

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Thanks guys for your input. Is there a prefered splicing guide somewhere that I might consult or is it just a twist and shield situation?