400 amps underground service 280' from transformer to meter

augie47 said:
IF your calculated load is actually 350 amps (rare on residential), to maintain a 3% voltage drop you would need parallel 300 kcmil AL and, if you don't reduce the neutral, it would take a 3" PVCconduit (assuming there is some Sch 80)
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And a 280 ft pull with parallel 300’s would need a tugger, good helpers and spool set up
Does anyone know if the POCO was providing this run, what size they would use?
 
tom baker said:
And a 280 ft pull with parallel 300’s would need a tugger, good helpers and spool set up
Does anyone know if the POCO was providing this run, what size they would use?
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agree,,, at a true 350 amp load there is a lot involved.
I was not recommending, simply answering the OP's question based on his input.
 
electrofelon said:
the other way around for me. The idea of the Poco pulling conductors to the meter socket baffles me, I think I've seen it once in
25 years!
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Then this will really blow you away. We dig all the way to the Meterbase, install the conduit, and the conductors. 😅
 
Hv&Lv said:
Then this will really blow you away. We dig all the way to the Meterbase, install the conduit, and the conductors. 😅
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When I was working in your area that was normally the case. (y)
 
If it is "from the transformer "then according to 450.3 Overcurrent Protection (B) the secondary breaker rating has to be 125% of transformer rating, in my opinion.
 
When I did a job in Tennessee, You put in the conduit, pull string, and the utility would pull the wire ( Volunteer Electric) BREMC, you stub down a pipe and 90, and they dig in and connect to the meter.
 
DIEGO FRANCO said:
customer needs at the end around 350 amps
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Is this a value you’ve determined with a load calculation or an uninformed homeowner telling you that?

Curious as to the size of the dwelling and what specific equipment ( EV / On demand water/ Back up electric heat strips for GEO, etc.) are being installed.
 
hillbilly1 said:
When I did a job in Tennessee, You put in the conduit, pull string, and the utility would pull the wire ( Volunteer Electric) BREMC, you stub down a pipe and 90, and they dig in and connect to the meter.
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That's one of the POCOs I deal with. It's actually VEC." Volunteer Energy Cooperative".
 
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