Multi strand shielded cable questions

[Walkers]

I have a piece of equipment that has a FWD/RVS pedal controller with a stop switch. I dropped a heavy wide flange beam on the cable and smashed it flat. The cable is 7 strands of 16 gauge stranded wire inside a jacket covered with armor (like Mac cable) covered with a light rubber jacket. Any idea what this cable is called, or how to source it?

 

[mike93lx]

Is there any printing on it?

 

[jeepxj]

C16LSELA-7 16 AWG 7 Conductor IEEE 1580 Type LSEL Control Cable Class C Strand Aluminum Armored

[short] C16LSELA-7 16 AWG 7 Conductor IEEE 1580 Type LSEL Control Cable Class C Strand Aluminum Armored Allowable Ampacity for C16LSELA-7 16 AWG 7 Conductor IEEE 1580 Type LSEL Control Cable Class C Strand Aluminum Armored: 100 Amps APPLICATIONS: For use as Control Cables aboard ship and...

nassaunationalcable.com

https://www.newark.com/c/cable-wire-cable-assemblies/multiconductor-cable?no-of-conductors=7conductor&wire-gauge=16awg

similar

 

[Walkers]

Is there any printing on it?

Any printing wore of years ago, as it works in a harsh environment.

 

[Walkers]

I looked at that cable, which spawned some new search terms. I have now found some similar cables and for only $4,700 I can have a spool of it. I need 10’.

 

[mike93lx]

Maybe try an industrial electrician or local supply house?

 

[WhoWhatNow]

$10.72 per foot

Standard Electrical Wire, Shielded, Seven 16-Gauge Wires

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

 

[jeepxj]

I looked at that cable, which spawned some new search terms. I have now found some similar cables and for only $4,700 I can have a spool of it. I need 10’.

what voltage we talking here?

 

[jeepxj]

i think this is the ticket.

14-7C w/ Ground Type MC Cable, PVC Jacket, Interlocked Armor Control Cable

14-7C w/ Ground Type MC Cable w/ PVC Jacket, Interlocked Armor Control Cable. Cut to length - sold by the Foot.

www.wireandcableyourway.com

 

[Walkers]

what voltage we talking here?

The machine is 230v 3 phase. It haven’t dug into the control system, but I suspect it is 24vdc.

 

[wyliesdiesels]

i think this is the ticket.

14-7C w/ Ground Type MC Cable, PVC Jacket, Interlocked Armor Control Cable

14-7C w/ Ground Type MC Cable w/ PVC Jacket, Interlocked Armor Control Cable. Cut to length - sold by the Foot.

www.wireandcableyourway.com

Thats #14, OP needs #16

 

[rlitman]

What about using 1/2" LFMC and pulling wires inside?

 

[jeepxj]

Thats #14, OP needs #16

correct me if i'm wrong but that is just oversizing the conductor no?

 

[wyliesdiesels]

correct me if i'm wrong but that is just oversizing the conductor no?

And the terminals might not be rated for the larger wire

 

[wyliesdiesels]

What about using 1/2" LFMC and pulling wires inside?

And how does he shield the wire?

 

[jeepxj]

And the terminals might not be rated for the larger wire

pfft just trim some strands off.


j/k.

 

[rlitman]

And how does he shield the wire?

I said LFMC, not LFNC. It's metal clad for a reason.

 

[mike93lx]

pfft just trim some strands off.


j/k.

Twist really hard

 

[wyliesdiesels]

I said LFMC, not LFNC. It's metal clad for a reason.

that doesnt mean the proper shielding is provided to the conductor. induced EMF could be carried on the metal portion of the conduit causing interference on the signal wiring. this could cause erratic operation of the machine which you dont want. most shielded control cables have a specific terminal to terminate the shield on and its not just the machine housing

 

[rlitman]

that doesnt mean the proper shielding is provided to the conductor. induced EMF could be carried on the metal portion of the conduit causing interference on the signal wiring. this could cause erratic operation of the machine which you dont want. most shielded control cables have a specific terminal to terminate the shield on and its not just the machine housing

Such a terminal would be simply to supply ground continuity to the board, but a solid metal barrier provides shielding regardless. Most coaxial (where shielding really does matter) RF connections I see simply bond the shield to the case, because that's all you need. And actually, it works better that way than any other way.

If you must populate that terminal, run a bare wire through the conduit to it. But many shielded systems (such as RD-485) only get bonded on one end anyway.

There's no mention above about impedance (where the configuration of the shield does matter), just shielding.

 

[Walkers]

I don’t think emf is really a problem, it is just 2 foot switches and a stop switch. The metal armor isn’t carrying and current, as I cut it off to splice the thing back together, and mine doesn’t have any emf shielding, just the wires and rubber jackets.

 

[jeepxj]

I don’t think emf is really a problem, it is just 2 foot switches and a stop switch. The metal armor isn’t carrying and current, as I cut it off to splice the thing back together, and mine doesn’t have any emf shielding, just the wires and rubber jackets.

so my cable would be find then if you're just splicing in the middle with its one size up on conductors.

 

[oldmachinenut]

$10.72 per foot

Standard Electrical Wire, Shielded, Seven 16-Gauge Wires

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

This

 

[mike93lx]

And the terminals might not be rated for the larger wire

Have you encountered scenarios where 14 wouldn't work as a replacement for 16?

 

[wyliesdiesels]

Have you encountered scenarios where 14 wouldn't work as a replacement for 16?

I havent no but i dont work on this type of stuff and we dont know what the rating on the terminals is

 

[mike93lx]

I havent no but i dont work on this type of stuff and we dont know what the rating on the terminals is

Thanks, just curious

 

[Mr_fixit]

Just because it was armored, does it need to be? ( the armor didn't work!) https://nassaunationalcable.com/pro...MIoJj-ici7-gIVht7ICh0sMAdIEAQYASABEgJXkfD_BwE


These guys have many cables that would work. https://nassaunationalcable.com/search?q=16/7*+control*+wire*&type=product

 

[Walkers]

so my cable would be find then if you're just splicing in the middle with its one size up on conductors.

I’m sure bigger would be fine, but I want to replace the spliced piece entirely.