• 18 AWG - 16 AWG
• Class B
• Stranded tinned copper per ASTM B-33 and B-8
• Flame-Retardant Ethylene Propylene Rubber (EPR)
• Black/ White; Alpha-numeric print; alternate & inverted
• Individual and about overall coverage is 100%, aluminum/polyester foil shield
• -30°C to 90°C; (90°C Dry/90°C Wet)
• 600 Volts
Tray Instrumentation Control Cable EPR/CPE Shielded Triads Overall Shield (STOS) 600V
This Instrumentation control cable is suitable for 600V rated load circuits. The cable has top notch design, which qualifies it for use in both domestic, commercial and industrial applications. It has an established and reliable shield feature to keep of distortion and interferences during data signal transfer. Here are some of the properties of the cable:
The conductor is Class B copper. It is stranded and tinned according to ASTM B-33 and B-8. Tinning and Stranding are processes involved in improving the conductor. Tinned copper is safe from corrosive elements. Stranded copper is more flexible for circuit branching. The conductors are designed with various sizes from 18AWG to 16 AWG.
Ethylene Propylene Rubber (EPR) is so strong and stable a material. It is used in constructing the cable’s insulation system. It is flame, weather and sunlight retardant. This rubber insulator is easy and convenient when installations are done since it doesn’t hurt human hands.
Aluminum/polyester foil shield covers 100% the cable, protecting the signal transmission from interference from external phenomenon. This improves data accuracy in instrumentation.
The cable is designed to use for control systems, power lighting and telemetering where heat and electrical stability is key. It is designed appropriate for use in conduit, cable tray or direct burial. Tray Instrumentation Control EPR cable is approved for Class 1, Division 2 hazardous area according to NEC Article 501 (TC) and fulfils NEC Article 336 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.