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RE: Braiding the AC mains feeding a power amp.

Posted by jea48 (A) on December 6, 2016 at 07:10:55

In Reply to: RE: Braiding the AC mains feeding a power amp. posted by Duster on December 5, 2016 at 22:10:43:

Tri-braided cables are good in theory, but not so much in practice, IMO.

In your opinion do you think the braided wires inside a steel conduit could be causing his problem?
Here is what I see with the construction of the branch circuit wiring.
It has 1 hot conductor that is 120V above ground and it is braided together with 2 grounded conductors. (The current carrying neutral conductor, and the safety equipment grounding conductor). And then the braided cable is installed in a 100% shield, a steel conduit.

**EDIT: The power amp is fed by 240V. Not sure if that would make any difference with the 2 hots and 1 equipment ground wires braided together.

For a 120V shielded power cord have you ever braided the hot, neutral, and equipment ground wires together? I have heard of twisting the hot and neutral together and then running the equipment ground straight along side the twisted pair. Or just running the 3 wires tightly together in a continuous spiral twist the entire length of the cable.

If you do not think his problem is the 120V branch circuit wiring, what else do you think it could be?

When I asked him how long were the branch circuit runs he answered all were less than 8ft. (<8ft) If that is the case his sub panel has to be really close to all the wall receptacle outlets. Not much distance (wire length) for decoupling of the audio equipment power supplies from one another by using dedicated 120V branch circuits. Could that be a problem?

What cable maker produces tri-braid in-wall AC wiring, or is it a totally custom build product from end-to-end, threaded through a conduit?

I asked him if the braided wire was a factory made assembly or was it made on the job? He did not respond to the question. Do you know of anyone that builds and sells a braided 12 gauge power cord in bulk?

Edits: 12/07/16 12/07/16

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