Nec 605.7

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angsoto

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AS PER 2005 NEC, 605.7 Freestanding-Type Partitions. Partitions of the freestanding type (not fixed) shall be permitted to be connected
to the building electrical system by one of the wiring methods
of Chapter 3. Multiwire branch circuits supplying
power to permanently connected freestanding partitions
shall be provided with a means to disconnect simultaneously
all ungrounded conductors at the panelboard where
the branch circuit originates.

LET'S SAY THAT WE HAVE A (6) SIX CIRCUIT FURNITURE SYSTEM FED FROM PANEL 'A'. HOW CAN WE SIMULTANEOSLY DISCONNECT SIX BREAKERS?
 
You don't and you're not required to. Check that section again. The requirement is to only open simultaneously the circuits sharing a neutral.
 
I don't have a codebook in front of me to check 605.7 and related articles right now. That said, from what you wrote out in your post, the requirement to disconnect all ungrounded conductors applies only to multiwire branch circuits, not to all circuits feeding the partition.

This requirement for one motion to disconnect all ungrounded conductors of multiwire branch circuits exists for all multiwire branch circuits under the 2005 NEC.
 
jdsmith said:
This requirement for one motion to disconnect all ungrounded conductors of multiwire branch circuits exists for all multiwire branch circuits under the 2005 NEC.
Click to expand...


I think that you meant the 2008 NEC.
 
Furniture Partition Calculation

Furniture Partition Calculation

My office is discussing how to calculate the load for furniture partitions(office cubicles) in an office remodel. I have always calculated the load using the 90va per yoke/180va per duplex/270 Va per triplex receptacle. which is what the code states for receptacle calculations. total va for the first 10kvA and half of the KVa after that point plus the initial 10Kva. Some people in my office calculate the load at 180va per 5 feet like you do for multioutlet assemblies. I do not see a definitive answer for how to calculate office cubicles. does anyone know what is the correct way of calculationg it?
 
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