Daisey chained mc

Merry Christmas
Status
Not open for further replies.
Jim W in Tampa said:
They are lay in 2x4.Have a guy saying it must get strapped within 12 inches i think he nuts but figured i might missed something
Click to expand...

The 12" refers to romex going into boxes as per 2008 NEC 334.30.

NEC 330.30 (D)(2)

"....For the purpose of this section, Type MC cable fittings shall be permitted as a means of cable support.
 
BackInTheHabit said:
The 12" refers to romex going into boxes as per 2008 NEC 334.30.
Click to expand...

Or MC 330.30(B), most of the time 12" applies, unless the MC is being used in accessible ceiling as described in...

NEC 330.30 (D)(2)

"....For the purpose of this section, Type MC cable fittings shall be permitted as a means of cable support.
Click to expand...
 
In the case of prefab luminaire whips, does there need to be a support within 12" of the box before the 2x4 (i.e. does the whip have to be supported at the 4 square?
 
georgestolz said:
In the case of prefab luminaire whips, does there need to be a support within 12" of the box before the 2x4 (i.e. does the whip have to be supported at the 4 square?
Click to expand...

Not if you use an MC fitting. Type MC cable fittings shall be permitted as a means of cable support. Connect it and call it supported.
 
Jim W in Tampa said:
what is the max distance from fixture that mc can be unsuported or fastened? Code number if you can.
Click to expand...


Hows this for an answer....
Jim W in Tampa said:
No you let him fall flat on his face.If he he doesnt know what he needs then send him home.That guy has got to be a joke,he is asking $10 hour guy to do journeymans work.
Click to expand...
 
I wonder why an MC connector is considered good enough to be a means of support in an accesible ceiling (not exceeding 6' respectively) and not in wall? Your telling me an electrician will periodically come by and poke his head up in the ceiling to make sure it is indeed still strapped if its accessable? Or maybe its just darn near impossible to strap it accordingly in those types of installations? It seems to me being in a concealed wall would be a safer installation using the connector as a strap than up in, say a dropped ceiling were personel could actually pull the cable loose later on while installing data, or lord knows what else.

Just wondering
 
POWER_PIG said:
I wonder why an MC connector is considered good enough to be a means of support in an accesible ceiling (not exceeding 6' respectively) and not in wall?
Click to expand...
I believe it is when fished... No support at all...
 
e57 said:
I believe it is when fished... No support at all...
Click to expand...
Yes, good call. I suppose it would create a problem if all your MC's are flappin' in the wind by the connectors while the drywall is going up.
 
Status
Not open for further replies.
Top