dry type 15kva transformer disconecting means.

[Angel Electric]

Im trying to reference the 08 nec for the requirements of disconecting.
The transformer is located 160' from breaker feeding it,, in a separate room.
Do i need a disconect switch... I also need to provide the reference per code to boss man...

 

[charlie b]

The reference you want is in the 2011 NEC, article 450.14. That is a new article, and it requires a disconnecting means that is either in sight or lockable. The fact that the article is new in 2011 is what tells you that this is not a requirement for an installation that falls under the 2008.

 

[kwired]

There is no requirement for disconnecting means within sight of a transformer.

450.3 covers overcurrent protection but does not mention location.