Was the final conclusion on this OP -
- Install SBJ at transformer and at Switchgear, per 250.30(A)(1) exception 2?
- Per 250.30(A)(2) exception, no SSBJ required between transformer and switchgear
- Therefore feeders from transformer to disconnect would be 4 wire, with no SSBJ or EGC?
And if 2011 code cycle applies, then 250.30(A)(2) exception is not available - then install SBJ at transformer Or switchgear, and feeders are 4/W with SSBJ sized per 250.102(C) (in this case 1/0 CU)?
Sorry, I got lost / confused through some of the sequential posts and wanted to make sure I understood correctly.
If 2014 applies, then there is reduced cost (less copper) to apply the 250.30(A)(2) exception. Are there other benefits?
- Install SBJ at transformer and at Switchgear, per 250.30(A)(1) exception 2?
- Per 250.30(A)(2) exception, no SSBJ required between transformer and switchgear
- Therefore feeders from transformer to disconnect would be 4 wire, with no SSBJ or EGC?
And if 2011 code cycle applies, then 250.30(A)(2) exception is not available - then install SBJ at transformer Or switchgear, and feeders are 4/W with SSBJ sized per 250.102(C) (in this case 1/0 CU)?
Sorry, I got lost / confused through some of the sequential posts and wanted to make sure I understood correctly.
If 2014 applies, then there is reduced cost (less copper) to apply the 250.30(A)(2) exception. Are there other benefits?