#2 SER Al.

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J

JDB3

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Location
San Antonio, Texas
I don't have the 2020 NEC (I know I should get it) but what is the current ampacity of #2 SER Al. ?
Also for 2-2-2-4 URD in conduit in the ground?
Thanks
 

NFPA 70®: National Electrical Code®

<p>90.2(C) Installations Covered.<br /><br />This Code covers the installation and removal of electrical conductors, equipment, and raceways; signaling and communications conductors, equipment, and raceways; and optical fiber cables for the following:<br /><br /> (1) Public and private...
www.nfpa.org

Click on Free Access. You might have to create an account first.

When you don't have a codebook handy...

SER
100A - 90A - 75A
90C - 75C - 60C

URD

Found this too:

nassaunationalcable.com

2-2-2-4 Dyke Quadruplex Aluminum Conductor Underground Direct Burial 600V URD

Allowable Ampacity for 2-2-2-4 Dyke Quadruplex Aluminum Conductor 600V URD direct burial is 155 Amps And in the duct, it will be 115 Amps.
nassaunationalcable.com nassaunationalcable.com

Specifications:​

  • Size AWG: 2
  • Stranding: 7
  • Insulation Thickness (mils): 60
  • Neutral Size AWG: 4
  • Single Phase Conductor Inches: 0.403
  • O.D. Inches: 0.973
  • Weight lbs./1000ft: 367 lbs
  • Ampacity: Direct burial: 155 Amps
  • Ampacity: In duct: 115 Amps


 
Your "URD" will need to have a NEC listing of "USE" or "RHW" and the installation ampacity is determined by 110;.14 also but commonly such an install would be 90 amps,
 
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