[dave11]

I need to run nm cable to a new ceiling bathroom fan I'm installing, The closest circuit in the attic is for a bedroom with only a few receptacles and almost no regular load. Only problem is that I'd need to splice into it at the beginning of it's run. There's no end point I can access that isn't switched.

This seems to mean I'd actually need to install two j-boxes close together, since there's no slack in the circuit cable to make up splices inside a j-box.

I've never seen it done this way, but haven't seen a lot of remodeling. Is this sort of thing common? Or is there another way I'm overlooking?

Thanks.

 

[jbfan]

I need to run nm cable to a new ceiling bathroom fan I'm installing, The closest circuit in the attic is for a bedroom with only a few receptacles and almost no regular load. Only problem is that I'd need to splice into it at the beginning of it's run. There's no end point I can access that isn't switched.

This seems to mean I'd actually need to install two j-boxes close together, since there's no slack in the circuit cable to make up splices inside a j-box.

I've never seen it done this way, but haven't seen a lot of remodeling. Is this sort of thing common? Or is there another way I'm overlooking?

Thanks.

It is common when you need to splice like that.
Just make sure the boxes are accessible and have covers on them.

 

[dave11]

It is common when you need to splice like that.
Just make sure the boxes are accessible and have covers on them.

Thanks. I was assuming that it must be so, but sometimes the obvious way is still wrong. Just don't want to do anything that looks hacked.

 

[MrElectricianTV]

I need to run nm cable to a new ceiling bathroom fan I'm installing, The closest circuit in the attic is for a bedroom with only a few receptacles and almost no regular load. Only problem is that I'd need to splice into it at the beginning of it's run. There's no end point I can access that isn't switched.

This seems to mean I'd actually need to install two j-boxes close together, since there's no slack in the circuit cable to make up splices inside a j-box.

I've never seen it done this way, but haven't seen a lot of remodeling. Is this sort of thing common? Or is there another way I'm overlooking?

Thanks.

Not unusual to do it that way. You could try pulling some staples and maybe get a little more slack out of the wire that way.

 

[Jim Port]

Rarely would there be enough slack to allow the 6 inches of free conductor from each cable to be in the box.

 

[pdxoregon]

Pull boxes are one of the few bargains out there. Don't skimp on size for a couple $'s more get the next size up from what you think you need.

Don't forget to mount the box and try to put it where it and the wires can get hit, specially if the wires are not in condit.

And keep in mind what to do if you insulation is thicker then the depth of the box.

 

[dalepres]

Should the OP, in this case, put a GFCI or AFCI/GFCI combo breaker on the circuit? If I remember correctly, the rule is GFCI within 3 feet or so of water and the bathroom fan probably may not meet the requirement but showers and sinks often have hose fixtures that could allow water to be sprayed accidentally up to the ceiling.

 

[Oso954]

Why would you be in contact with the fan ? With very little possibility of potential human contact, there is usually no need to GFCI it.

The main reason to GFCI the vent fan is the mfg called for it in the instructions.