Fine stranded DLO cable

[petersonra]

I would think the crimper isn't needed for a terminal lug capable of tightening onto the wire.

The ferrule gets crimped to the wire. Then the ferrule goes into the terminal.

You don't need the ferrule if the terminal is listed for fine stranded wire. Incidentally, it is important to look carefully at exactly what a terminal listed for use with fine stranded wire is actually listed for. Many have limitations on conductor size and what classes of stranding can be used.

 

[LarryFine]

The ferrule gets crimped to the wire. Then the ferrule goes into the terminal.

I meant that the terminal should be able to crush the ferrule onto the wire.

 

[Todd0x1]

I would think the crimper isn't needed for a terminal lug capable of tightening onto the wire.

Same here. Some sticklers for UL and instructions might say it needs to be crimped. Personally I think crimping it is only really necessary when using with a pressure plate type terminal.

 

[Fred B]

I meant that the terminal should be able to crush the ferrule onto the wire.

I think the use of the terminal screw to crimp the ferrule would alter the actual torque applied. A pre-compressed ferrule would present a more solid point for the terminal to press on and achieve a more uniform torque.

 

[petersonra]

There is or was one lug manufacturer that had that in their instructions. Absence a manufacturer's instruction saying you can use the copper foil and finely stranded conductors with a lug listed for Class B and C stranding, I would see that as a violation.

It is a fairly common practice to drill weep holes in conduit and enclosures to allow water to escape but I have never seen anything in the instructions that say to do this

 

[busman]

I have used these type ferrules for #6 cords feeding UPS units. I'm not seeing a tool that does 4/0 for $100.

Thanks,

Mark

 

[garbo]

Here are some 4/0 Ferrules, and the crimper isn't bad around $100

N1200032 - 4/0 AWG Non Insulated Wire Ferrules, 32mm Pin, UL Recognized, 25 Pieces

NON INSULATED WIRE FERRULES A Wire Ferrule is a connector used to terminate stranded wires (sometimes referred to as a cord end terminal or bootlace ferrule). Traditionally a wire ferrule is crimped to a stranded wire using a crimping tool (compression, ratchet, or pneumatic mechanism), thus...

www.ferrulesdirect.com

Thanks for this info. Great price of less then a $1 each for 4/0.

 

[don_resqcapt19]

It is a fairly common practice to drill weep holes in conduit and enclosures to allow water to escape but I have never seen anything in the instructions that say to do this

Not sure what that has to do with using a solid conductor in a termination that is only listed and tested for use with stranded conductors.
As far as drilling the drain or weep holes, that is specifically permitted by a code rule. 314.15.

 

[Todd0x1]

I have used these type ferrules for #6 cords feeding UPS units. I'm not seeing a tool that does 4/0 for $100.

Thanks,

Mark

https://www.ferrulesdirect.com/collections/hand-crimping-tools/products/fd120150#description