Here is the footnote from the NEC Plus 2008:
Changed From 2005
•Changed From 2005
338.10(B)(4)(a): Deleted the clause “excluding 334.80” to clarify that that section applies when determining the ampacity of Type SE cable when used for feeders and branch circuits in interior wiring installations.
See posting # 7.look I don't care if it's 2002, 2005, 2008, 2011 but no one has given any reference for ser only being allowed at 60 degrees C. :whistling2: I have been told by several here that I am wrong and that is the case. So stop acting like an inspector and spill the reference.
Where is the reference?????? I don't see anything here!II. Installation
338.10 Uses Permitted.rticle
(B) Branch Circuits or Feeders.
(4) Installation Methods for Branch Circuits and Feeders.
(a) Interior Installations. In addition to the provisions of this article, Type SE service-entrance cable used for interior wiring shall comply with the installation requirements of Part II of Article 334.FPN: See 310.10 for temperature limitation of conductors.
Article 338 specifically excludes 334.80 which is about NM anyway.
The ampacity of Types NM, NMC, and NMS cable shall be determined in accordance with 310.15.
The ampacity shall be in accordance with the 60°C (140°F) conductor temperature rating. The 90°C (194°F) rating shall be permitted to be used for ampacity derating purposes, provided the final derated ampacity does not exceed that for a 60°C (140°F) rated conductor. The ampacity of Types NM, NMC, and NMS cable installed in cable tray shall be determined in accordance with 392.11.
Table 310.16 90 degree column #2 AL = 90 amps. so what?
Table 310.16 60 degree column, #2 AL = 75 amps.
do you really believe what you just wrote???? maybe you should read 338 again :yes:SER is to be installed compliant with article 334 which covers NM. NM is limited to 60 degree ampacity. It therefore follows that SER used for interior installations is limited to 60 degree C ampacity. Which part don't you understand? It's right there in bold, black italic print.