This is the method approved by the national electrical code nec.
How to splice romex in attic.
A pull down attic ladder does not count.
These connectors can be the familiar twist on wire nuts or newer style push fit connectors.
What is the correct and most efficient way to splice 14 2 from 14 3 that is running through my attic.
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The safest way to splice wires in the attic is by placing the splice inside of a junction box.
An attic that is accessible which is defined by the nec as having a permanently installed stair or ladder in place must have protection for any cables that run across the top of the attic floor joists or within 7 feet where they run across the face of rafters or studs.
Junction boxes and splicing electrical wiring.
If you come across a wire or romex cable that nee.