Which is better tinned or twisted

[Madeintheshade]

I'm going to run 10/2 from the battery to a Blue Sea 5025 under the consol.
Helix 10 at console will wire right into the 5025.
The 859 at the bow will have to have 7' of 12 or 14 /2 spliced in to reach the 5025.
Trying to decide between twisted ( West Penn C210), or Tinned ( Ancor Safety Duplex).
I haven't been able to locate tinned and twisted cable.
So if forced to choose tinned or twisted which do you choose ?

[ntslam]

Tinned

[Bob B]

Do both ..... https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

[bobcoy]

My vote would be the Marine grade from Ancor
I looked at Bobs and if the sheith is marine graded I would go with this speaker wire.

[ntslam]

http://www.bestboatwire.com/marine-w...x-dc-boat-wire

[Madeintheshade]

Was planning on using anchor heat shrink crimp terminals.
They are not the most easily found.
Are the heat shrink terminals from bestboatwire.com just as good ?

[Hollada]

.

[TroyBoy30]

tinned duplex marine grade. it doesn't need to be twisted

[sfw1960]

It sure helps prevent stray RFI if it is twisted pair...

For the little additional cost, I would recommend it.

[TroyBoy30]

duplex accomplishes the same thing as twisted. the goal is to keep the wires grouped together

[sfw1960]

NO, it does not troy.

I do installations & have a concept of how inductive reactance works.
(Bob B could enlighten you also, as he was a tech in his earlier days....)

You pay peeps to bolt your stuff on, I don't.

[TroyBoy30]

the whole purpose of duplex cable is to eliminate inductive interference just like twisted cable. this not only from the description of the product but from much smarter people than you, including those I pay to bolt my stuff on.

[Bob B]

NO, it does not troy.

I do installations & have a concept of how inductive reactance works.
(Bob B could enlighten you also, as he was a tech in his earlier days....)

You pay peeps to bolt your stuff on, I don't.

Robert is exactly right .... The twisting helps reduce interference. Duplex wire does NOT do that. ....... I worked in an industry that used a LOT of wiring for communication purposes and also power......and have seen first hand how much difference twisted wire makes. The difference is greater the longer the run .... on a long run duplex wire for us was not even usable.

[TroyBoy30]

I obviously disagree as does the market and cable makers

[Bob B]

Twisted wire creates and inductive resistance to high frequencies ...... untwisted wire does not. Where does it state that duplex wire eliminates noise?

[Bob B]

Here are a few articles on the subject ..... a google search results in 100's of such article ...... from people who KNOW what they are talking about.

http://www.eetimes.com/document.asp?doc_id=1279624
http://www.siemon.com/us/white_paper...esentation.asp
https://en.wikipedia.org/wiki/Twisted_pair
https://www.quora.com/How-does-twist...ween-the-wires
http://www.ciscopress.com/articles/article.asp?p=31276

[foo]

That's what I like info. Thanks Bob. I learned something today and, will go to bed less stupid tonight.

[sfw1960]

Twisted wire creates and inductive resistance to high frequencies ...... untwisted wire does not. Where does it state that duplex wire eliminates noise?

Forget about it Bob, maybe part of being a man is to be able realize when you are WRONG and are able to admit it.

IDC that the boy thinks his install boys are smarter than I am; I know there's a reason I am working in my companies engineering dept. - because I don't know as much as an installer...



"The market and cable makers" know full and well "Twisted Pair" & "Sheathing" are not in the same chapter, let alone the same page, paragraph or sentence. Duplex means "two" nothing more.

We "obviously disagree" because ignorance is the path of least resistance, it's rather hard to be smart and it's really easy to be ignorant of the FACTS .

The articles are good stuff Bob and maybe they can help others - but you're not going to convince anybody who is "smarter than you are" and has a superiority (inferiority) complex unseen since the likes of little Adolph....LOL!

[Bob B]

Robert .....STP (Shielded twisted pair) is even better than UTP (unshielded twisted pair) for noise reduction, but I'm not sure how the shield ground would be handled on a boat.....maybe dangle a wire from the shield into the water) If I had a noise problem, I would do some experimenting with that.

[sfw1960]

Robert .....STP (Shielded twisted pair) is even better than UTP (unshielded twisted pair) for noise reduction, but I'm not sure how the shield ground would be handled on a boat.....maybe dangle a wire from the shield into the water) If I had a noise problem, I would do some experimenting with that.

Fantastic recommendation Bob.

Even BONDING to the system ground, either thru a capacitive discharge or directly to the main should still offer up a ton of extra shielding by elimination of a ground loop source.



Adding a sacrificial anode to the hull in a low flow area and bonding to that might be a long lasting option also.