Article 690

[ageconsys]

Is it safe to assume that 690.13-14 deals only with DC Solar Systems and 690.15-17 with AC Solar Systems with respect to Disconnects?

 

[jaggedben]

No. Not safe to assume.

Personally I would argue that all of those sections apply only to DC disconnects except where the language specifically refers to an AC disconnect. AC disconnecting means general requirements are covered in Article 705.

But it is not safe to assume anything about how AC vs. DC requirements will be interpreted by a building department.

See, you have a different interpretation than I do.

 

[ageconsys]

No. Not safe to assume.

Personally I would argue that all of those sections apply only to DC disconnects except where the language specifically refers to an AC disconnect. AC disconnecting means general requirements are covered in Article 705.

But it is not safe to assume anything about how AC vs. DC requirements will be interpreted by a building department.

See, you have a different interpretation than I do.

I tend to agree, what I find a little confusing is 690.13 says DC conductors need to have a disconnect 690.14 then says Additional Provisions. So, is this additional provisions for DC disconnects in 690.13 or all disconnects and why on earth do they say in 690.15 disconnection
of Photovoltaic Equipment?

 

[Smart $]

I tend to agree, what I find a little confusing is 690.13 says DC conductors need to have a disconnect 690.14 then says Additional Provisions. So, is this additional provisions for DC disconnects in 690.13 or all disconnects and why on earth do they say in 690.15 disconnection
of Photovoltaic Equipment?

MA is under 2014 NEC requirements. Why are you quoting 2011 NEC sections? For example, there is no 690.14 in the 2014 edition.


BTW, welcome to the forum. :thumbsup:

 

[MechEdetour]

If my memory serves me right, last time I looked at the draft for 2017 this was one of the sections that was getting "reworked."