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Is it in code to run these three wires?
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I'll begin by saying that I'm no electrician. I was just wondering about the following:
TLDR: Is it ok to have two 12/2 wires and a 10/3 wire going through the same 3/4" hole?
For a washer and dryer there are currently two blue boxes with two yellow wires, which I suspect to be 12/2 wires, going through a hole (through wood, but not a floor joist) maybe 3/4" wide. Turns out a gas dryer wasn't possible so I needed a larger wire, so I ran an orange 10/3 wire through the same hole as the 2 12/2 wires.
My question is whether or not this is OK? The reason I did this is because the ceiling is going to be boarded up and now is the time to do it. The 10/3 wire going to the panel has a drop ceiling so I am going to let the electrician handle the wiring of that (though for now I did just run it along the joists and to the panel).
The 10/3 wire is pretty thick so I did have to tug a little bit to get it through the hole, but it appeared to be undamaged and fine. I'll add by saying that the 10/3 and 12/2 wires are not running parallel once through the hole. In fact they diverge (something like below)
^
|
|
|
|
|
|
|
|
|
12/2
v
<---------10/3 wire -------> *
electrical
asked 2 hours ago
Tabeth Nkangoh
112
New contributor
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
2
down vote
favorite
I'll begin by saying that I'm no electrician. I was just wondering about the following:
TLDR: Is it ok to have two 12/2 wires and a 10/3 wire going through the same 3/4" hole?
For a washer and dryer there are currently two blue boxes with two yellow wires, which I suspect to be 12/2 wires, going through a hole (through wood, but not a floor joist) maybe 3/4" wide. Turns out a gas dryer wasn't possible so I needed a larger wire, so I ran an orange 10/3 wire through the same hole as the 2 12/2 wires.
My question is whether or not this is OK? The reason I did this is because the ceiling is going to be boarded up and now is the time to do it. The 10/3 wire going to the panel has a drop ceiling so I am going to let the electrician handle the wiring of that (though for now I did just run it along the joists and to the panel).
The 10/3 wire is pretty thick so I did have to tug a little bit to get it through the hole, but it appeared to be undamaged and fine. I'll add by saying that the 10/3 and 12/2 wires are not running parallel once through the hole. In fact they diverge (something like below)
^
|
|
|
|
|
|
|
|
|
12/2
v
<---------10/3 wire -------> *
electrical
asked 2 hours ago
Tabeth Nkangoh
112
New contributor
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I'll begin by saying that I'm no electrician. I was just wondering about the following:
TLDR: Is it ok to have two 12/2 wires and a 10/3 wire going through the same 3/4" hole?
For a washer and dryer there are currently two blue boxes with two yellow wires, which I suspect to be 12/2 wires, going through a hole (through wood, but not a floor joist) maybe 3/4" wide. Turns out a gas dryer wasn't possible so I needed a larger wire, so I ran an orange 10/3 wire through the same hole as the 2 12/2 wires.
My question is whether or not this is OK? The reason I did this is because the ceiling is going to be boarded up and now is the time to do it. The 10/3 wire going to the panel has a drop ceiling so I am going to let the electrician handle the wiring of that (though for now I did just run it along the joists and to the panel).
The 10/3 wire is pretty thick so I did have to tug a little bit to get it through the hole, but it appeared to be undamaged and fine. I'll add by saying that the 10/3 and 12/2 wires are not running parallel once through the hole. In fact they diverge (something like below)
^
|
|
|
|
|
|
|
|
|
12/2
v
<---------10/3 wire -------> *
electrical
asked 2 hours ago
Tabeth Nkangoh
112
New contributor
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'll begin by saying that I'm no electrician. I was just wondering about the following:
TLDR: Is it ok to have two 12/2 wires and a 10/3 wire going through the same 3/4" hole?
For a washer and dryer there are currently two blue boxes with two yellow wires, which I suspect to be 12/2 wires, going through a hole (through wood, but not a floor joist) maybe 3/4" wide. Turns out a gas dryer wasn't possible so I needed a larger wire, so I ran an orange 10/3 wire through the same hole as the 2 12/2 wires.
My question is whether or not this is OK? The reason I did this is because the ceiling is going to be boarded up and now is the time to do it. The 10/3 wire going to the panel has a drop ceiling so I am going to let the electrician handle the wiring of that (though for now I did just run it along the joists and to the panel).
The 10/3 wire is pretty thick so I did have to tug a little bit to get it through the hole, but it appeared to be undamaged and fine. I'll add by saying that the 10/3 and 12/2 wires are not running parallel once through the hole. In fact they diverge (something like below)
^
|
|
|
|
|
|
|
|
|
12/2
v
<---------10/3 wire -------> *
electrical
electrical
asked 2 hours ago
Tabeth Nkangoh
112
New contributor
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 hours ago
Tabeth Nkangoh
112
New contributor
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 2 hours ago
asked 2 hours ago
Tabeth Nkangoh
112
New contributor
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 hours ago
Tabeth Nkangoh
112
asked 2 hours ago
Tabeth Nkangoh
112
112
New contributor
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Tabeth Nkangoh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
add a comment |Â
2 Answers
2
active
oldest
votes
up vote
4
down vote
In the US, as far as the National Electrical Code is concerned, you can run three cables through a hole bored in a joist or rafter as long as you can run the cables without damaging them.
If the bored hole was longer than 24", you would have to observe the rules for bundling and do derating calculations - that is, figure out the diminished current carrying capacity of the cables. This would be very unusual in house construction, there are not many walls, beams, etc. that are 24" deep.
There may be local codes that apply in addition to or instead of the NEC - can't say what applies for your area.
Some people have their own rules about how many cables can go through a single bored hole. Sometimes these rules of thumb are pretty popular, and can be confused with actual code requirements, even by inspectors.
The safest thing to do in these situations is contact your local code enforcement department and ask. Of course, it's often a lot easier to drill another hole.
answered 1 hour ago
batsplatsterson
6,2871020
In Knox County, Tn ( Knoxville ), we're allowed 2 wires per hole. Mixed gauge wires can be run thru the same hole if they are #10 or smaller. Again, that's specific to my location.
– BillWeckel
10 mins ago
add a comment |Â
up vote
1
down vote
Yes you can run a cable of #12 and a cable of #10 through the same hole.
answered 1 hour ago
Ed Beal
26.6k11838
Would anything change if that area is going to be insulated? Any things to note in terms of fire safety?
– Tabeth Nkangoh
1 hour ago
1
@TabethNkangoh - Most municipalities require you to seal bored holes with foam or other means to keep the ingratiate of fire protection of the stud.
– Retired Master Electrician
1 hour ago
add a comment |Â
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
4
down vote
In the US, as far as the National Electrical Code is concerned, you can run three cables through a hole bored in a joist or rafter as long as you can run the cables without damaging them.
If the bored hole was longer than 24", you would have to observe the rules for bundling and do derating calculations - that is, figure out the diminished current carrying capacity of the cables. This would be very unusual in house construction, there are not many walls, beams, etc. that are 24" deep.
There may be local codes that apply in addition to or instead of the NEC - can't say what applies for your area.
Some people have their own rules about how many cables can go through a single bored hole. Sometimes these rules of thumb are pretty popular, and can be confused with actual code requirements, even by inspectors.
The safest thing to do in these situations is contact your local code enforcement department and ask. Of course, it's often a lot easier to drill another hole.
answered 1 hour ago
batsplatsterson
6,2871020
In Knox County, Tn ( Knoxville ), we're allowed 2 wires per hole. Mixed gauge wires can be run thru the same hole if they are #10 or smaller. Again, that's specific to my location.
– BillWeckel
10 mins ago
add a comment |Â
up vote
4
down vote
In the US, as far as the National Electrical Code is concerned, you can run three cables through a hole bored in a joist or rafter as long as you can run the cables without damaging them.
If the bored hole was longer than 24", you would have to observe the rules for bundling and do derating calculations - that is, figure out the diminished current carrying capacity of the cables. This would be very unusual in house construction, there are not many walls, beams, etc. that are 24" deep.
There may be local codes that apply in addition to or instead of the NEC - can't say what applies for your area.
Some people have their own rules about how many cables can go through a single bored hole. Sometimes these rules of thumb are pretty popular, and can be confused with actual code requirements, even by inspectors.
The safest thing to do in these situations is contact your local code enforcement department and ask. Of course, it's often a lot easier to drill another hole.
answered 1 hour ago
batsplatsterson
6,2871020
In Knox County, Tn ( Knoxville ), we're allowed 2 wires per hole. Mixed gauge wires can be run thru the same hole if they are #10 or smaller. Again, that's specific to my location.
– BillWeckel
10 mins ago
add a comment |Â
up vote
4
down vote
up vote
4
down vote
In the US, as far as the National Electrical Code is concerned, you can run three cables through a hole bored in a joist or rafter as long as you can run the cables without damaging them.
If the bored hole was longer than 24", you would have to observe the rules for bundling and do derating calculations - that is, figure out the diminished current carrying capacity of the cables. This would be very unusual in house construction, there are not many walls, beams, etc. that are 24" deep.
There may be local codes that apply in addition to or instead of the NEC - can't say what applies for your area.
Some people have their own rules about how many cables can go through a single bored hole. Sometimes these rules of thumb are pretty popular, and can be confused with actual code requirements, even by inspectors.
The safest thing to do in these situations is contact your local code enforcement department and ask. Of course, it's often a lot easier to drill another hole.
answered 1 hour ago
batsplatsterson
6,2871020
In the US, as far as the National Electrical Code is concerned, you can run three cables through a hole bored in a joist or rafter as long as you can run the cables without damaging them.
If the bored hole was longer than 24", you would have to observe the rules for bundling and do derating calculations - that is, figure out the diminished current carrying capacity of the cables. This would be very unusual in house construction, there are not many walls, beams, etc. that are 24" deep.
There may be local codes that apply in addition to or instead of the NEC - can't say what applies for your area.
Some people have their own rules about how many cables can go through a single bored hole. Sometimes these rules of thumb are pretty popular, and can be confused with actual code requirements, even by inspectors.
The safest thing to do in these situations is contact your local code enforcement department and ask. Of course, it's often a lot easier to drill another hole.
answered 1 hour ago
batsplatsterson
6,2871020
answered 1 hour ago
batsplatsterson
6,2871020
answered 1 hour ago
batsplatsterson
6,2871020
answered 1 hour ago
batsplatsterson
6,2871020
6,2871020
In Knox County, Tn ( Knoxville ), we're allowed 2 wires per hole. Mixed gauge wires can be run thru the same hole if they are #10 or smaller. Again, that's specific to my location.
– BillWeckel
10 mins ago
add a comment |Â
In Knox County, Tn ( Knoxville ), we're allowed 2 wires per hole. Mixed gauge wires can be run thru the same hole if they are #10 or smaller. Again, that's specific to my location.
– BillWeckel
10 mins ago
In Knox County, Tn ( Knoxville ), we're allowed 2 wires per hole. Mixed gauge wires can be run thru the same hole if they are #10 or smaller. Again, that's specific to my location.
– BillWeckel
10 mins ago
In Knox County, Tn ( Knoxville ), we're allowed 2 wires per hole. Mixed gauge wires can be run thru the same hole if they are #10 or smaller. Again, that's specific to my location.
– BillWeckel
10 mins ago
add a comment |Â
up vote
1
down vote
Yes you can run a cable of #12 and a cable of #10 through the same hole.
answered 1 hour ago
Ed Beal
26.6k11838
Would anything change if that area is going to be insulated? Any things to note in terms of fire safety?
– Tabeth Nkangoh
1 hour ago
1
@TabethNkangoh - Most municipalities require you to seal bored holes with foam or other means to keep the ingratiate of fire protection of the stud.
– Retired Master Electrician
1 hour ago
add a comment |Â
up vote
1
down vote
Yes you can run a cable of #12 and a cable of #10 through the same hole.
answered 1 hour ago
Ed Beal
26.6k11838
Would anything change if that area is going to be insulated? Any things to note in terms of fire safety?
– Tabeth Nkangoh
1 hour ago
1
@TabethNkangoh - Most municipalities require you to seal bored holes with foam or other means to keep the ingratiate of fire protection of the stud.
– Retired Master Electrician
1 hour ago
add a comment |Â
up vote
1
down vote
up vote
1
down vote
Yes you can run a cable of #12 and a cable of #10 through the same hole.
answered 1 hour ago
Ed Beal
26.6k11838
Yes you can run a cable of #12 and a cable of #10 through the same hole.
answered 1 hour ago
Ed Beal
26.6k11838
answered 1 hour ago
Ed Beal
26.6k11838
answered 1 hour ago
Ed Beal
26.6k11838
answered 1 hour ago
Ed Beal
26.6k11838
26.6k11838
Would anything change if that area is going to be insulated? Any things to note in terms of fire safety?
– Tabeth Nkangoh
1 hour ago
1
@TabethNkangoh - Most municipalities require you to seal bored holes with foam or other means to keep the ingratiate of fire protection of the stud.
– Retired Master Electrician
1 hour ago
add a comment |Â
Would anything change if that area is going to be insulated? Any things to note in terms of fire safety?
– Tabeth Nkangoh
1 hour ago
1
@TabethNkangoh - Most municipalities require you to seal bored holes with foam or other means to keep the ingratiate of fire protection of the stud.
– Retired Master Electrician
1 hour ago
Would anything change if that area is going to be insulated? Any things to note in terms of fire safety?
– Tabeth Nkangoh
1 hour ago
Would anything change if that area is going to be insulated? Any things to note in terms of fire safety?
– Tabeth Nkangoh
1 hour ago
1
1
@TabethNkangoh - Most municipalities require you to seal bored holes with foam or other means to keep the ingratiate of fire protection of the stud.
– Retired Master Electrician
1 hour ago
@TabethNkangoh - Most municipalities require you to seal bored holes with foam or other means to keep the ingratiate of fire protection of the stud.
– Retired Master Electrician
1 hour ago
add a comment |Â
Tabeth Nkangoh is a new contributor. Be nice, and check out our Code of Conduct.
Tabeth Nkangoh is a new contributor. Be nice, and check out our Code of Conduct.
Tabeth Nkangoh is a new contributor. Be nice, and check out our Code of Conduct.
Tabeth Nkangoh is a new contributor. Be nice, and check out our Code of Conduct.
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