I'm throwing this out there as a possibility, but could I use a 90-degree EMT compression connector (http://www.homedepot.com/p/Halex-3-...ession-Connector-90292/100154530#.Uh58qH8piRI) as a means to connect two pieces of 3/4" EMT for low voltage wiring (fire alarm/security). I understand that the connector is for connecting EMT to a box/enclosure, but I have a really tight area that I need two small 90 degree bends.
Second option: Is it possible to pull #14 low voltage wiring or smaller from a j-box, through 3in of EMT to a 90 deg pull elbow, past 22' of 3/4" EMT, through another 90 deg pull elbow with 3in EMT, and out to another j-box (think of a long 'U' shaped run) without opening the covers on the pull elbows? Could a pull string, lube, and/or a vacuum do a run like this?
Sorry for the strange questions. I'm dealing with an unusual situation here.
Second option: Is it possible to pull #14 low voltage wiring or smaller from a j-box, through 3in of EMT to a 90 deg pull elbow, past 22' of 3/4" EMT, through another 90 deg pull elbow with 3in EMT, and out to another j-box (think of a long 'U' shaped run) without opening the covers on the pull elbows? Could a pull string, lube, and/or a vacuum do a run like this?
Sorry for the strange questions. I'm dealing with an unusual situation here.