Conduit size vs. number of romex cables
#1
Member
Thread Starter
Conduit size vs. number of romex cables
I want run some additional drops in my garage. The way I want to do this is to drop from the ceiling for each one. For this I would want to daisy-chain from one drop to the next, so I would have 2 - 12-2 romex cables in the conduit of ech drop; AC/incoming and AC/outgoing.
1- Can this be done? If so, what size conduit is required?
2- Is there a better way?
1- Can this be done? If so, what size conduit is required?
2- Is there a better way?
#2
2- Is there a better way?
Is this an attached garage?
#4
Conduit
I want run some additional drops in my garage. The way I want to do this is to drop from the ceiling for each one. For this I would want to daisy-chain from one drop to the next, so I would have 2 - 12-2 romex cables in the conduit of ech drop; AC/incoming and AC/outgoing.
#5
If all you're looking for is physical protection on the walls, 3/4" PVC is all you need.
#7
If 3/4" is not large enough, then I've been doing it wrong and passing inspection for the past thirty years.
What size conduit would you suggest?
What size conduit would you suggest?
#8
Now this is from the handbook. It is not code, but explanatory information.
"The maximum fill requirements do not apply to short sections of conduit or tubing
used for the physical protection of conductors and cables. Cables are commonly
protected from physical damage by conduit or tubing sleeves sized to enable the cable
to be passed through with relative ease without injuring or abrading the protective
jacket of the cable. The requirement of 300.5(D)(1) regarding physical protection of
direct buried cables and conductors as they emerge from below grade is an example of
conduit or tubing being used as a protective sleeve and not as a continuous raceway
system per 300.12. However, a fitting is required on the end(s) of the conduit or tubing
to protect the conductors or cables from abrasion. [See 300.15(C)."
The other thing, if you claim the "protection argument", it calls for sked 80 if you go pvc.
"The maximum fill requirements do not apply to short sections of conduit or tubing
used for the physical protection of conductors and cables. Cables are commonly
protected from physical damage by conduit or tubing sleeves sized to enable the cable
to be passed through with relative ease without injuring or abrading the protective
jacket of the cable. The requirement of 300.5(D)(1) regarding physical protection of
direct buried cables and conductors as they emerge from below grade is an example of
conduit or tubing being used as a protective sleeve and not as a continuous raceway
system per 300.12. However, a fitting is required on the end(s) of the conduit or tubing
to protect the conductors or cables from abrasion. [See 300.15(C)."
The other thing, if you claim the "protection argument", it calls for sked 80 if you go pvc.
#10
I agree, the sizing is for complete conduit systems. A conduit sleeve does not need to meet the same rules.