Running conduit in commercial offices

[me50soup]

In the case you have an office room with Tbar grid ceiling, and we will say there are 4 lights in this room.

The 2 ways of running the conduit:
Case A) homerun -> jbox -> flex conduit to each of the lights
Case B) homerun -> daisy chain the lights

2 question:
1) Is the conduit used in Case B daisy chain flex conduit?
2) Obviously Case A is more reliable system. But is Case A or Case B easier/cheaper to install in commercial setting?

Thanks

 

[GerryB]

In the case you have an office room with Tbar grid ceiling, and we will say there are 4 lights in this room.

The 2 ways of running the conduit:
Case A) homerun -> jbox -> flex conduit to each of the lights
Case B) homerun -> daisy chain the lights

2 question:
1) Is the conduit used in Case B daisy chain flex conduit?
2) Obviously Case A is more reliable system. But is Case A or Case B easier/cheaper to install in commercial setting?

Thanks

How about Case C, mc cable daisy chain, easiest, quickest, probably cheapest.

 

[infinity]

In the case you have an office room with Tbar grid ceiling, and we will say there are 4 lights in this room.

The 2 ways of running the conduit:
Case A) homerun -> jbox -> flex conduit to each of the lights
Case B) homerun -> daisy chain the lights

2 question:
1) Is the conduit used in Case B daisy chain flex conduit?
2) Obviously Case A is more reliable system. But is Case A or Case B easier/cheaper to install in commercial setting?

Thanks

Since you said conduit we would run the conduit to a central location (try to hit 4 fixtures) set a JB and then run the fixture whips into the box. We buy the fixtures with the whips pre-installed so you never have to open the wiring compartment of the fixture.

 

[MAC702]

I usually try to home run to a box in the middle of the four lights, and cable to each one. The make up in the lights goes easier, as a bonus, though there is a big advantage to getting the fixtures with the whips already installed!

Why can't you use MC instead of flex conduit?

But I also try to see exactly what I'm dealing with and may adjust at the time of actual installation.

 

[growler]

In the case you have an office room with Tbar grid ceiling, and we will say there are 4 lights in this room.

The 2 ways of running the conduit:
Case A) homerun -> jbox -> flex conduit to each of the lights
Case B) homerun -> daisy chain the lights

2 question:
1) Is the conduit used in Case B daisy chain flex conduit?
2) Obviously Case A is more reliable system. But is Case A or Case B easier/cheaper to install in commercial setting?

Thanks

How are the lights in this office to be controlled? Will there be a seperate switch or sensor or controlled from a central location?

I like the juntion box in a central location to provide power for the lights but even this may be run in MC cable.

Some job specs and some areas may not allow MC cable so you have to be carefull.

 

[Strathead]

I usually try to home run to a box in the middle of the four lights, and cable to each one. The make up in the lights goes easier, as a bonus, though there is a big advantage to getting the fixtures with the whips already installed!

Why can't you use MC instead of flex conduit?

But I also try to see exactly what I'm dealing with and may adjust at the time of actual installation.

You can also buy the fixture whips separately for about $7 each. Still cheaper than the field made MC whip.