Cable for rental generator

anbm

Senior Member
Location
TX
Occupation
Designer
Looking for 480V, 400A outdoor rated cable to connect between a rental generator and 800A panel inside the building,
probably will run (2) sets of this cable in parallel. Anyone knows any cable brand name that can do the job? Thank you,
 
Only did higher amperage a few times and used individual Type G Cable.

The folks in this area that rent generators also rent cables. Normally the least expensive way
 
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The cable brand is whatever the rental company can provide, if they have the generator, they should have the cable; and yes, it'll have camlock E1016 connectors.

Also, the URL above is for welding cable (which nobody I've seen uses) and is not a compliant type of flexible cable, you need types SC, W, or similar (see Arts 400 and 590).

and many others
 
I agree stage lighting type cables with Camlocks are pretty much standard. Typically #4/0 in free air is used for 400 amps.
 
The cable brand is whatever the rental company can provide, if they have the generator, they should have the cable; and yes, it'll have camlock E1016 connectors.

Also, the URL above is for welding cable (which nobody I've seen uses) and is not a compliant type of flexible cable, you need types SC, W, or similar (see Arts 400 and 590).

and many others

So I pulled the cut sheet on that, and it’s a Type EP cable, which is the same sheath type listed on Allied’s site for their Type W cable. And they have it listed for extreme use in mines and shipyards.

But I can’t find info on either type in the NEC.
 
As others mentioned I rented the cables from the outfit that supplied the generator
 
The cable brand is whatever the rental company can provide, if they have the generator, they should have the cable; and yes, it'll have camlock E1016 connectors.

Also, the URL above is for welding cable (which nobody I've seen uses) and is not a compliant type of flexible cable, you need types SC, W, or similar (see Arts 400 and 590).

and many others
While, not compliant, welding cable (without a dual marking) is very commonly used for this type of application, at least around here.
 
and how do you terminate the cables at each end? The 4/0 is highly stranded and it is also using the 90 DegC rating. If you are terminated to lugs on the panel, the lugs are probably on for B or C stranding. The termination on the panel is also 75 DegC. Typical solution is to use a length of either 500 or 600 kcmil conductor, say THWN-2, and splice it to the 4/0 conductor. It might be difficult to find the same series camlock that will fit the larger conductor. I've talked to rental companies about this and pretty much get a deer in the headlights response.
 
So I pulled the cut sheet on that, and it’s a Type EP cable, which is the same sheath type listed on Allied’s site for their Type W cable. And they have it listed for extreme use in mines and shipyards.
EP insulation does not necessarily make for an NEC cable type, Allied's type W might use the same construction and insulation, but unless Allied calls the product "type W", it isn't.

But I can’t find info on either type in the NEC.
There is no flexible cable type EP in the NEC but you will find types SC and W (and G) in table 400.4. Pay attention to rating temperatures, termination temperatures, and whether any lugs used are listed for fine-stand cable (you may be able to rent those along with the cable). Also read the footnotes for table 400.5(A)(2).
 
EP insulation does not necessarily make for an NEC cable type, Allied's type W might use the same construction and insulation, but unless Allied calls the product "type W", it isn't.


There is no flexible cable type EP in the NEC but you will find types SC and W (and G) in table 400.4. Pay attention to rating temperatures, termination temperatures, and whether any lugs used are listed for fine-stand cable (you may be able to rent those along with the cable). Also read the footnotes for table 400.5(A)(2).

Thanks for that! 👍

We always put camlocks on the ends of the welding cables.
 
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