NEC 2023 AC solar disconnect location

[hhsting]

NEC 2020 Article705.11(C) had location of overcurrent protection like 10ft or 16.5ft from point of entrance for AC solar disconnect where it is connected in supply side of main service disconnect.

However, I don’t see that language in NEC 2017 Article 705. Is it relocated or deleted? If deleted then why?

 

[hhsting]

NEC 2020 Article705.11(C) had location of overcurrent protection like 10ft or 16.5ft from point of entrance for AC solar disconnect where it is connected in supply side of main service disconnect.

However, I don’t see that language in NEC 2017 Article 705. Is it relocated or deleted? If deleted then why?

No one?


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[augie47]

Don't know where the 16.5 enters the picture but 705.31 addresses the location.

 

[Fred B]

Don't know where the 16.5 enters the picture but 705.31 addresses the location.

705.31 in 2017 says just the 10ft limit but 2020 in a new section 705.11(B) it gives a couple of options that are different for dwelling vs non-dwelling installations that have a 10ft for dwelling and 16.5 for non-dwelling.

 

[hhsting]

705.31 in 2017 says just the 10ft limit but 2020 in a new section 705.11(B) it gives a couple of options that are different for dwelling vs non-dwelling installations that have a 10ft for dwelling and 16.5 for non-dwelling.

NEC 2023??

 

[wwhitney]

NEC 2023??

Yes, IIRC the special rules for treating solar supply side connections went away in the NEC 2023. [Your OP says 2017, hence the confusion, people read the post more than they read the thread title.] Under the 2023 NEC a supply side connection is treated like any other set of service conductors, no special allowances for them.

Cheers, Wayne

 

[hhsting]

Yes, IIRC the special rules for treating solar supply side connections went away in the NEC 2023. [Your OP says 2017, hence the confusion, people read the post more than they read the thread title.] Under the 2023 NEC a supply side connection is treated like any other set of service conductors, no special allowances for them.

Cheers, Wayne

What about location of solar AC disconnect for tap from supply side in NEC 2023?


I see the confusion should be NEC 2023 post #1. Habit of writing NEC 2017 since was on their for while and AHJ transitioning now to NEC 2023.

 

[wwhitney]

What about location of solar AC disconnect for tap from supply side in NEC 2023?

The same rules apply as for the location of any service disconnect: outside, or inside nearest the entrance of the conductors.

Cheers, Wayne

 

[jaggedben]

705.11(D) 'A service disconnecting means in accordance with Parts VI thru VII of Article 230 shall be provided..."

In Part VI of 230...
230.70(A)(1) "The service disconnecting means shall be installed at a readily accessible location either outside the building or structure or inside nearest the entrance of the service conductors."