Split 1000A feed to minimize lead times

[Dark Sparky]

In an old manufacturing plant we are repurposing the 1000A feed (circuit) out of old 480V switchgear. We need to take the 1000 amp feed from the switchgear and use it for distribution from electrical panels.

1000 amp panels have a prohibitively long lead time - so instead we will use two 600 amp panels. What is then best arrangement to bring the 1000 amp feed to the panels and then split the load between the two panels?

For instance, a 600 amp panel with 1000 amp feed-through lugs to fed the second 600 A panel, both with main 600A breakers? A wiring trough using the tap rule and splitting the 1000A feed between the two panels, each with main breakers? The main goal is to bring the full 1000 amp capacity to the panels, and split this capacity between the two panels.

Thanks in advance.

 

[infinity]

A wiring trough using the tap rule and splitting the 1000A feed between the two panels, each with main breakers?

Just splice on two 600 amp taps following the tap rules. You can use a wireway or a junction box.

 

[jim dungar]

The main goal is to bring the full 1000 amp capacity to the panels, and split this capacity between the two panels.

The code, section 408, requires that the panels have a disconnect, so yes you will need to have 600A breakers somewhere.

As infinity said you use the rules in 240.21(B) to size the conductors and locate the 600A breakers in relation to your 1000A switch.

 

[Dark Sparky]

Thank you both