Price (Per FT.)
Tray Instrumentation Control THHN/PVC Shielded Triads Overall Shield (STOS) 600V
This is a special Instrumentation control cable with unique Shielded Triads Overall Shield (STOS) feature. This cord serves your circuit with a voltage consumption of 600V. It is top notch designed to meet the market need.
Tray Instrumentation Control THHN cable conductor is made of copper. The conductor is stranded to improve its flexibility and efficiency in circuit installation. Being designed with various sizes from 18AWG to 10 AWG, you can find as much the size you need. All the design specifications are in accordance with ASTM B-3 and B-8
An extra strong insulation system is made of Cross-linked Polyethylene (PVC). This insulation is not only flame retardant but also has excellent resistance to chemicals and abrasion. With so protected a cable, your electrical gadgets are guaranteed safety and longevity.
An addition protective feature is the sturdy jacket constructed from Polyvinyl Chloride, a moisture, weather and sunlight resistant material. The jacket is always black in color.
This three conductor cable is designed in full adherence and permission of NEC to be applied in various applications in both indoor and outdoor. Installation for both conduit, cable tray and direct burial are appropriated for the cable. It has safety measures considered during its design, that is why it has been approved for Class 1 Division 2 hazardous locations according to NEC Article 501 (TC).
Tray Instrumentation control cable is largely used control systems, telemetering and power lighting. It can also be used in the NEC Article applications.
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FAQ (STOS) shielded tray shielded triad overall shield
What are the common characteristics of shielded tray shielded triad overall shield cables?
These cables have the red, black and white conductors bound together with a shield which forms a triad. A cable may have many such triads which may then be numbered and the triads are totally isolated from each other with a drain wire for grounding. The triads are covered with an overall foil shield which can be made of aluminum or polyester.
What are the common places where you can see the use of shielded tray shielded triad overall shield cable?
These types of cables are generally used where there has to be maximum noise rejection such as instrumentation applications and many other purposes. So as such you can be sure to see them used in heavy processing plants where the noise level will be really high. They are also used in manufacturing plants, storage areas, offices and labs where you can find medium to low levels of noise.
What is the shield made up of?
The shield will usually be any of the following
- A wire mesh which might be made up of braided strands of metal, usually copper or aluminium.
- A foil or a spiral winding tape
- A layer of conducting polymer
The shield is then covered with an overall jacket which can be made of PVC or EPR.
Why should I go in for a shielded cable?
You can use unshielded ones as well as shielded ones without any noticeable difference in the performance of the cable. However, when there is a lot of electrical noise which is conducted as EMI or electromagnetic interference, then shielded cables are used. Insulation alone will not offer you protection against EMI. A shield will surround the conductors effectively so that they will not detect any EMI and therefore, will not transfer or absorb EMI. Furthermore, shields protect the cable, people and also any equipment to which it might be connected.
Can I use a shielded cable to connect equipment from two different circuits?
When you connect equipment from two different circuits, there might be some grounding issues as it can form a ground loop. However, when the ground voltage difference is minimal, there is no need to worry. In case it is high, it can damage the system, but you can terminate one end of the shielded cable using a connector which is non-shielded. However, this causes a floating shield and if this picks up additional noise, you will have to do proper grounding at both ends.