DLO Cables

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winnie said:
You are correct.

I saw RHH/RHW and read 'acceptable flexible cord'.

With that said, as a practical matter, I bet DLO/RHH/RHW meets all the standards but has not been evaluated and labeled as an article 400 portable cord.

With that RHW rating, this cable could be used as building wiring in conduit. But that would likely be a horrible idea. The conductors are fine stranded, the insulation is probably thick and 'sticky'. I would be perfectly comfortable using it with camlocks, but I've never been in a situation where an inspection would be triggered for such use.

-Jon
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I used it for a 1750 hp DC motor because the armature voltage was 700 volts and DLO is 1,000 or 2.000 depending on the version you purchase. We pulled four 535.3 kcmil in 4" rigid conduits for about 100'....as long as you did not leave any dry spots on the conductors when you applied the wire pulling lube it pulled as easy as THHN would have.
 
I have rewired AC locomotive traction motor circuits using 2000v DLO from their respective phase module. Also had the pleasure/ displeasure of rewiring DC locomotive traction motor circuits. It is all free hanging only using cleats every so often. Not too difficult to work with but it is a must to use proper connectors with proper crimping force.
 
Opie11 said:
I have rewired AC locomotive traction motor circuits using 2000v DLO from their respective phase module. Also had the pleasure/ displeasure of rewiring DC locomotive traction motor circuits. It is all free hanging only using cleats every so often. Not too difficult to work with but it is a must to use proper connectors with proper crimping force.
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Side question:

When locomotives are pushed or pulled, do the motors spin or is there a disconnecting mechanism?
 
it's not hard to turn up places selling made-up camlok cables with type W, here are the first few that turned up-
powertemp.com

Type SC & Type W Single Conductor Cable Assemblies | Power Temp Systems

Our Single Conductor Cam-Lok Feeder Cable Assemblies, available in Type W for industrial and Type SC for entertainment in various cable sizes, provide an extension for a distribution panel placed away from the power source. See more.
powertemp.com powertemp.com
https://temporarypowersupply.com/product/type-w-camlock-assemblies/ (also sells "DLO" cables)
nassaunationalcable.com

50ft 2/0 AWG Cam Lock SC Cable Cam Connector 2/0 assemblies individually

5-Banded CAM lock cable extensions are assembled with UL and c(UL) Listed SC cable made from annealed no. 30 gauge bare copper stranding.Excellent flexibility and durability.
nassaunationalcable.com nassaunationalcable.com

LarryFine said:
When locomotives are pushed or pulled, do the motors spin or is there a disconnecting mechanism?
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They spin, there could be equipment that allows the motor to disengage from the axle but I've never seen/heard of such a thing (that would be an extra point of failure).
 
One of my clients had a design standard that called for DLO cable where connecting to a generator terminal box. The thought was regular stranded wires were too stiff and DLO would transmit less vibration.
 
The motors spin whenever the locomotive moves.
Depending on the position,lead or trailing, and status, providing power and dynamic breaking or not, will dictate what circuits are used.
 
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Opie11 said:
The motors spin whenever the locomotive moves.
Depending on the position,lead or trailing, and status, providing power and dynamic breaking or not, will dictate what circuits are used.
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I was thinking more about an engine being moved while not under power.
 
Birken Vogt said:
I wonder if that is always true or just for whatever mfr they were quoting there? Seems from memory I have seen some type W with mighty fine strands and DLO with thicker strands at 4/0. I could be wrong.
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I don't think that the size and number of strands is a product standard requirement, so it would be up the manufacturer.
 
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