Jain Richter posted an update 4 months ago
There are numerous forms of electrical wire. Each different kind of electrical wire is good for another job. The wires need different varieties of insulation and protection; this is what makes each great for an alternative application. There is certainly THHN and TFFN wires which are much the same. You can also find the NM-B and Romex wires and in many cases the MC Conduit cable. Many of these wires are perfect for electrical work indoors and several of which can also be used outside, and in conduit.
TFFN and THHN
These two wire names are abbreviations. TFFN means thermoplastic insulation, flexible, fixture, and nylon coating. Whilst the THHN means thermoplastic insulation, heat resistant, high temperature resistant, and nylon coating. Then add in that some of the THHN wires come even in a water, gas and oil resistant form, and you also get THWN wire. These are generally all single conductor copper wires you can use both indoors, outdoors along with conduit.
NM-B and Romex
Romex could be the Southwire make of an NM-B cable. The actual NM stands for non-metallic. This means that instead of the wire being incased in the metal jacket. The NM-B cable features a PVC jacket around the multiple conductors it holds. Now this form of electrical wire could only supply indoors. The wire doesn’t have enough protection on it for use outside. The commonest use just for this sort of wire is in insulated homes and buildings, running power from electrical boxes to outlets, lights and appliances.
MC Conduit Cable
This type of electrical cable is quite completely different from the NM-B cable. That is because the MC Conduit cable is metal clad. This sort of electrical cable comes with a aluminum interlocked armor jacket rather than the typical PVC. The aluminum jacket round the wires conductors is meant to act as a conduit so there will not be a need for one when it’s being installed. This design is also supposed to speed up set up . process, consequently saving electricians and contractors both time and money.
These electrical wires works extremely well indoors as building wire. Most could even be used outdoors in conduit at the same time. Now despite the fact that most of these wires are somewhat similar, they may be still different, which means the variation in applications. Make sure to have a look at your options to find the appropriate wire for your job or project!
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