What I'm hearing is that one of the conductor types listed in the heading of the table must be identified either on the conductor or on the cable sheath.
Any SE cable I have looked at says XHHW on the sheath.
310.15(B)(6) brings up a whole host of gray areas. What exactly does "main power feeder" mean?
It does leave some gray area, in my opinion it means the service conductors or "the feeder" to a dwelling unit.
I've always assumed that in a dwelling unit, this table can be used with all feeders 100A and up that have load diversity (i.e. not all air conditioning units).
I do not agree with the above.
What if the customer wants a 100A feeder to a detached woodworking shop? Is that a dwelling unit load?
No, a garage is not a dwelling unit, check article 100.
Somewhere there must be a judgement call of where 310.15(B)(6) does and does not apply.
Any thoughts?
I do not think it is anywhere near as 'gray' as you make it sound.
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