Figuring out the Usage of 2/3 VNTC Cable
Everyone benefits from cables and wires, but few take notice of them as the electrical wiring systems are like a hidden city which has to function non-stop and flawlessly, most of the time, without us being aware of it. One of the most used cables in the industry is the tray cable, and there are many types of tray cables available in the market. Users of tray cables find that they are robust and durable with excellent performance. However, what one must keep as a priority while dealing with cables is not the price, but the safety factor which involves its installation and performance.
An example of the tray cable is the 2/3 VNTC or the 2/3 W/GRND THHN tray cable, which has 3 conductors and of size 2 AWG. The insulation and conductor jacket are both made of PVC, which makes the cable a tough one by offering mechanical protection. A cross section view will show you that these conductors have conductor numbers printed on them for easy identification as all of them are colored black. Usually the ground conductor will be bonded throughout the building for a uniform grounded system, and so it is vital to be able to identify each conductor. However, this cable can sometimes be available without a ground conductor also. So check the cable before you buy it if you are particular about having a ground conductor.
Use only approved methods for installation to maintain wire integrity and structural soundness of the buildings. Sometimes you will have to take extra measures to protect your wiring but the 2/3 VNTC cable is flame retardant, moisture and sunlight resistant. It also gives cold bend protection along with cold impact resistance to ensure a longer service life. You can use it for open air systems, raceways or even in direct burial. You can use the cables in both wet and dry areas in accordance to Class 1 Division II locations, which may be hazardous. This makes it a good choice even for residential and commercial purposes as you need not bother about the wiring once it has been successfully installed.
A few important points that you will have to keep in mind is that the cable, though robust, can only tolerate up to 75°C for wet locations but can be used up to 90°C for dry locations. The cable also meets the UL 1277 standards and the cable can also perform well even when exposed to oil, chemicals or gas. Even if all cables look alike, do not be fooled by their external appearance. Learn about the materials that they are made up of and what are the qualities that they portray.
However, it is always best to consult with an expert before you start out. It will also be useful to remember that the tray cable can also be called raceway cable, lighting cable, control cable, underground cable or a signal cable. So whichever name it might be parading as, you will be able to identify the cable basically as a tray cable.