many to one splice

Status
Not open for further replies.
art

art

Member
Location
California
Occupation
Electrical Engineer
I'm using 3 sets of 250 kcmil for voltage drop. that many conductors won't fit in my subpanel. what is the connector that will join 3 250 kcmil to 1 4/0?
 
Polaris type connector.

IPLD500-4.jpg


https://www.cesco.com/Nsi-Electrica...AWG-4-Ports-600-Volt-Plastisol-Black/p2092632
 
art said:
I'm using 3 sets of 250 kcmil for voltage drop. that many conductors won't fit in my subpanel. what is the connector that will join 3 250 kcmil to 1 4/0?
Click to expand...

Art
Not sure what your load is but 3-sets of 250 transitioning back to a single 4/0 seems to imply a long distance.
Here are some numbers for comparison.
Assumed your load is 180 amps.

480-3P PF=0.85 can go 1200' with VD of 1.9%
480-3P PF=1.00 can go 1700' with VD of 1.99%
208-3P PF=0.85 can go 550' with VD of 2.01%
208-3P PF=1.00 can go 750' with VD of 2.02%
 
MyCleveland said:
Art
Not sure what your load is but 3-sets of 250 transitioning back to a single 4/0 seems to imply a long distance.
Here are some numbers for comparison.
Assumed your load is 180 amps.

480-3P PF=0.85 can go 1200' with VD of 1.9%
480-3P PF=1.00 can go 1700' with VD of 1.99%
208-3P PF=0.85 can go 550' with VD of 2.01%
208-3P PF=1.00 can go 750' with VD of 2.02%
Click to expand...

How did you arrive at those numbers without considering current?
 
ggunn said:
How did you arrive at those numbers without considering current?
Click to expand...

I stated I assumed his load current was 180 amps.
Just worked backwards from the 4/0 wire....assumed 225A OCPD and 80% of 225 = 180.
Application just seemed odd, not saying it is invalid...so I through out a few numbers for comparison.

I forgot to mention, numbers were also based on CU wire and STEEL conduit.
 
Status
Not open for further replies.
Top