We have 2 (2) 3/4 flex and (1) 12/4 MC running through the same factory punched 1 1/2″ X 3″ hole in metal studs.

Likewise, how many wires are in a stud hole?

The Answer According to the National Electrical Code, you can have 4 12/2 nonmetallic sheathed cables through a single bored hole that is fire- or draft-stopped using thermal insulation, caulk, or sealing foam, or where proper spacing is not maintained for more that 24 in.

Also Know, can I use metal studs in basement? Metal wall studs, which are typically composed of steel, are usually intended for use in basement walls. They can also help design DIY partition walls or other parts of simple metal structures. Metal framing studs are used to support a non-load-bearing wall.

Also to know, how many MC cables can you bundle together?

Do I have to derate the conductors in MC cables that are routed down a hallway for 50 feet and bundled together? There are roughly ten 12-2 MC cables installed in bundled configuration using nylon tie wraps. These cables are the homeruns for 20-ampere branch circuits.

Why do metal studs have holes?

Metal studs have precut holes designed to accommodate electrical and plumbing lines. When running NM cable through metal framing, inspect the holes to be sure there are no rough or sharp edges that could damage insulation. Always use the special bushings designed to protect wiring.

Related Question Answers

Which way do holes in metal studs go?

All holes line up. Even though electricians and plumbers usually punch their own holes, it would be like framing a wall and not lining up with the floor joists. It's just not right.

Can you use plastic boxes on metal studs?

You can use plastic boxes with metal studs, but they must be the kind of boxes designed for metal studs. Don't use boxes designed for wood studs. It is allowable in most jurisdictions, however there is a safety consideration. If you use an plastic box, the steel stud assembly is not bonded to ground.

Can you run Romex in a metal building?

Re: Romex for a steel garage building? Romex is acceptable as long as you protect the cable through the holes in the studs with bushings and you comply with support requirements in vertical runs and at boxeswhich may be the tricky part.

What is a wire bushing?

Bushings are used to protect both wires and the machines and surfaces that they pass through. To protect wires, bushings insulate openings for the wires to pass through so they won't be damaged in any way. This insulation also prevents short circuits and damage to machinery by keeping wires separated from each other.

Can you staple two wires together?

Keep all wires at least 1-1/2″ away from framing edges. You may find the below stackers easier to use than a whole lot of staples. You are allowed to put 2 lines under 1 staple. The conductors can cross the gas line or run next to it but not secured to the gas line.

How many wires can be in a 7 8 hole?

7/8‘ would be a better choice there. Bottom line for running cables is before derating affects “standard” ampacities for #14, #12 or #10 XX/2 or XX/3 cables you can run up to four cables in a hole or bundled.

Can you run plumbing and electrical through the same hole?

Plumbing and electrical in the same wall cavity are fine, even if they do touch. Remember, all electrical is insulated. Bare ground wires are OK too.

How many wires can be stapled together?

Our rule of thumb was always one wire per staple and two wires max side by side. if you need to put more than two wires use what we call stack it's. Its a plastic nail on wire holder. and you can stack about 6 to 8 wires maybe more if you can fit them there.

What size hole do you drill for electrical wire?

Depends on the size of the cable. Most electricians drill 3/4″ holes for everything because it make it easier to pull the cable and they can put either one or two cables through and they don't have to switch drill bits. However, 14/2 cable is 3/8″ wide, which means it fits in a 1/2″ hole, and you are allowed to do so.

How many holes can I drill in a stud?

All holes must be at least 5/8″ from edge of stud. IBC and ICC do not say anything about how many holes per stud. Studs get their strength from the outside being continuous and some webbing between them (which is why there are requirements on hole diameter and how close to the edge they can be).

Can you run 2 wires in conduit?

Run 2 more wires up the conduit – two for LINE, two for LOAD. Tape them creatively to distinguish them. The simple answer to your question is yes according to NEC Article 334.15 (B), but it may be a little more complicated than that. First the conductors must be rated for wet location.

How many nm cables go through a hole?

In a nutshell if you are working on a standard house, you can almost always put atleast 4 NM cables (sizes 14 and 12) in the same hole. add- you can run four 14/3 and 12/3 also because, if they are MWBC the neutral is not a CCC and not counted.

Is BX cable legal?

BX is accepted by the National Electrical Code (NEC). Older BX cables without an internal bonding strip are not accepted by NEC. NM cable is also accepted by the NEC.

Can you use MC cable with plastic boxes?

Metal boxes only!

Plastic or fiberglass boxes aren't designed to be used with MC cable. Even if you‘re able to rig up a connection to a plastic box, you will fail the electrical inspection.

Is MC cable waterproof?

Type AC cable is approved by the NEC for use only in dry locations. In order to comply with the NEC for use in wet locations, interlocked Type MC Cable must have a corrosion resistant jacket and wet location rated conductors. A common style cable that is rated for wet locations is a standard MC Cable with a PVC jacket.

Can metal studs support a TV?

Metal studs are hollow and narrow, so you'll need hardware that will be strong enough to support the weight of the television and long enough to reach the studs. Snap toggles are stronger than a toggle bolt or drill toggle and can be used as an anchor for installing a flat screen TV through metal, drywall, and plaster.

Are metal studs as strong as wood?

Steel studs boast a lot of advantages over their wooden counterparts, but they are weighed down with some downsides. Surprisingly, steel studs aren't as strong as wooden ones, especially the lighter versions that can only be used on interior, non-load-bearing walls.

How far apart are metal studs?

When a home is framed, the wall studs are usually spaced 16 or 24 inches apart. If you start in a corner and measure out 16 inches and you don't find a stud, you should find one at 24 inches.