classified application refresher

[rmc1076]

I have been out of the field for some time, so I need a refresher on Classified Area Applications, this is my question

I remember that when making a pentration between divisions such as a CL. 1 Div. 2 to a general-purpose area that a Seal is required with in 18? of the boundary and that the only fitting between the Seal may be a solid fitting (i.e. EL 29) and that a Form 7 conduit body (i.e. LL, LR, LB) would not be to code when installed between the boundary

Hope I have given enough information on this, also if you can direct me to the article Sealing in the NEC were I can review

Thanks

Robert

 

[bphgravity]

Re: classified application refresher

Article 501.5 of the 2002 NEC.

 

[rmc1076]

Re: classified application refresher

thanks for the location, however I do not have a current copy of the NEC, so I would like to ask if the boundary question I asked is correct

Thanks for all the help

 

[don_resqcapt19]

Re: classified application refresher

Fittings of any type other than a listed reducing bushing at the sealoff are not permitted between the boundry and the seal. The distance is 10', not 18". The rules that you are talking about apply to enclosure seals, not boundry seals.
Don