Submarine cable cross-section - photo

**Jon** · Jan 11, 2019, 06:56 PM

Submarine cable cross-section.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...n_fullsize.jpg

Previously:

Undersea cable armoring GIF
Laying railroad cable troughs - GIF
Drill-powered electrical cable feeding tool - GIF
Untwisting cable - GIF

**Frank S** · Jan 11, 2019, 10:46 PM

I'd like to have the copper from a 100 ft of those main conductors

**rgsparber** · Jan 12, 2019, 04:07 PM

It looks like 3 phase power cable to me. My guess is that it is not run very far.

Rick

**satx** · Jan 12, 2019, 05:35 PM

Originally Posted by rgsparber

It looks like 3 phase power cable to me. My guess is that it is not run very far.

Rick

must be power cable.

Data cables have been fiber optics for decades.

**Harvey Melvin Richards** · Jan 12, 2019, 06:05 PM

I think it's fake. They had one on Gilligan's Island once, and it looked nothing like this.

**rgsparber** · Jan 12, 2019, 06:50 PM

Originally Posted by Harvey Melvin Richards

I think it's fake. They had one on Gilligan's Island once, and it looked nothing like this.

I give you an A+ for a wonderful sense of humor.

Rick

**Radioman** · Jan 12, 2019, 07:50 PM

Originally Posted by rgsparber

I give you an A+ for a wonderful sense of humor.

Rick

What do you mean sense of humor? I saw that episode and he’s right!

**rgsparber** · Jan 12, 2019, 08:25 PM

Originally Posted by Radioman

What do you mean sense of humor? I saw that episode and he’s right!

OK, you get an A+ too...

Rick

**nova_robotics** · Jan 12, 2019, 09:19 PM

Originally Posted by rgsparber

It looks like 3 phase power cable to me. My guess is that it is not run very far.

Rick

Yup. The capacitive losses over any significant distance on that cable would be substantial. If you ran two of them side by side you could have a good upgrade path to HVDC.

**PJs** · Jan 13, 2019, 12:01 PM

Based on the core insulation I would think they are running in the low to mid-Khz range to be effective for the primary phases. But that is some serious amps...likely a lower voltage. Early Aircraft and old navy stuff used to run at 400hz. Also interesting are the 2 conductors at 11 and 5 O'clock which appear to possibly be some form of Coax although the Braid wire is quite large or even Cu tubing?? Brings a whole new meaning to multi-conductor control and power cable.