How do you install a junction box in an attic?
Quote from the video:
Quote from Youtube video: Here let's follow it. I just put this wire in so you put it along there so that I got enough crawl space there. Pull it across and boom put the junction box there and this wire goes to the switch.
Can nm B cable be exposed?
The National Electrical Code forbids the use of NM cable in situations where it is exposed in a manner where physical damage is possible.
Where can non metallic cable be installed?
It could be installed exposed in a residential garage or in an attic or basement. In most cases, the NM cable must closely follow the building surface or another means of support for the cable must be provided.
How can NM cable be protected?
Nonmetallic-sheathed cable must be protected from physical damage by rigid metal conduit (RMC), intermediate metal conduit (IMC), Schedule 80 PVC conduit, Type RTRC-XW conduit, electrical metallic tubing (EMT), guard strips, or other means approved by the authority having jurisdiction (AHJ) [334.15(B)].
Is it OK to have a junction box in the attic?
Yes, junction boxes in attics, suspended ceilings and crawl spaces are legal. Basically, the rule is that ALL wire connections must be accessible. In other words, you can’t cut a hole in a wall or ceiling and bury a junction box by covering it with drywall, paneling, tile, or whatever.
How do you install a junction box outside?
Quote from the video:
Quote from Youtube video: You could tap into an existing interior outlet or connect to a junction box but for this installation. We're going to run a new 20 amp dedicated circuit from the electrical panel.
Can I run NM cable in conduit outside?
Answer: No, Type NM cable cannot be installed outside, regardless of the wiring method enclosing it. The installation is a damp or wet location.
Does nm B need to be in conduit?
In fact. NEC calls for it to be in conduit, when protection from physical damage is required.
In which locations is type NM cable not allowed to be run?
Type NM cable cannot be run outdoors even if it is run in a raceway because this is considered to be a wet location. Type NM cable cannot be run in any raceway other than using it as a sleeve in accordance with 334.15(B) and 300.15(C) or in accordance with 334.12(A)(1) Exception.
How far from a box must Romex be secured?
Article 336-18 stated that cable must be secured in place at intervals not exceeding 4.5 feet (1.37 m) and within 12 inches (305 mm) from every cabinet, box, or fitting.
How often does NM cable have to be supported?
every 4 ½ ft.
NM cable must be supported and secured every 4 ½ ft. and within 12 inches of every outlet box, junction box, cabinet, or fitting. Secure and support. Where nonmetallic cable is installed horizontally through holes or notches in framing members, it is considered supported and not required to be secured.
What is the minimum size NM cable that can be secured exposed to the bottom side of a joist with out a running board?
Where cable is run at angles with joists in unfinished basements and crawl spaces, it shall be permissible to secure cables not smaller than two 6 AWG or three 8 AWG conductors directly to the lower edges of the joists.
How do you cover a junction box in the attic?
If you have an electrical box in your attic, cover it with a plastic or metal blank cover that is an appropriate size for your electrical box.
Can a junction box be under insulation?
The junction boxes that contain splices and are not accessible from the ceiling below should be exposed – not covered by insulation.
How do I splice Romex in my attic?
Quote from the video:
Quote from Youtube video: Just pull on it tight. Use your sheetrock knife and reach back in the box and sawed it. Off. Okay now there's a piece of paper around the bare copper wire.
How do you splice Romex in a junction box?
Quote from the video:
Quote from Youtube video: So what is that solution a company called te does make an approved splice kit that has two ends that will connect. Together. So you'll cut your damaged romex install those in the two halves.
Can you splice wires without a junction box?
Short answer: NO. Long answer: All splices must be in a junction box, and the junction box must be accessible.
Can you splice wires in the attic?
As per the national electrical codes, these splices should be placed inside a covered electric box made of plastic or metal. Wires should be placed inside a covered box because if the connecting wires become overloaded or loose, they can get heated and cause sparks.
How do I run electrical wires in my attic?
Cable run across the top of joists
If the attic is accessible by permanent stairs or ladder, any cable running across the top of joists will have to be protected. Protecting the cable is as simple as installing “substantial guard strips”, which can simply be a 1×2 furring strip on each side of the cable.
Is it OK to splice Romex?
It must be noted that while it is possible to splice different types of Romex wire—12/2 to 12/3, for instance—you should never splice together wires of a different gauge. Wire gauge is determined by the amount of amperage the wire is expected to carry.
