Choose Non-metallic Sheathed Cable or THHN Stranded Wire?

As we all know , there are some common properties between the non-metallic sheathed cable and THHN/THWN-2 stranded or solid wire, but we can't use in one way totally, we still need know the difference between them and  today this article maybe cost you 7 minutes to know them more comprehensively.

What is the non-metallic sheathed cable?

If bare pvc insulated flexible wires were allowed to touch, the circuit would not work, so the pvc insulated flexible wires must remain close yet stay separate. The design of non-metallic sheathed cable is for solving this problem. In general we can see the non-metallic sheathed cable mainly used for interior residential wiring inside walls and floor and ceiling cavities. 

What is the THHN stranded wire?

THHN stranded wire refers to thermoplastic high-heat-resistant, nylon-coated wire. It's designed with a specific insulation material, temperature rating, and condition of use for electrical wire and cable. Besides, there are solid copper design for THHN electrical cable.

Non-metallic sheathed cable or THHN stranded wire?

If you are a purchaser and looking for a electrical wire and cable manufacturer, how do you choose either of them? Below introduce 3 tips help your procurement more smooth.

• Price consideration. THHN stranded wire is cheaper than non-metallic sheathed cable, if your budget is not enough, you can choose the THHN stranded wire or solid copper design.

• Use habit. In some countries, the THHN stranded wire is more popular, for example, in South America or The Philippines,  more and more purchasers like to buy the THHN stranded or solid wire, besides, the THWN stranded wire also largely needed by them.

• The difficulty to purchase. If you are going to purchase the non-metallic sheathed cable, maybe it' s hard to find a reliable manufacturer to supply good quality product to you. However the situation changed when it happened to THHN stranded or solid wire. In China, lots of electrical wire and cable manufacturer have the ability to produce the THHN stranded wire with excellent quality.