What are CTS and TRS wiring?

Hint: In order to answer the above question, we will be discussing the wiring systems. We will look upon the different types of wiring schemes out of which we ought to discuss the CTS and TRS wiring in detail. We will write the advantages and dis-advantages of this wiring scheme as well.

Complete step by step solution:
Electrical wiring is the method of attaching different accessories for the delivery of electrical energy from the supplier's metre board to home appliances such as lamps, fans, and other domestic appliances. The type of service needed will have a big impact on the wiring system you choose.
The most common forms of internal wiring are:
> Cleat wiring
> Wooden casing and capping wiring
> CTS or TRS or PVC sheath wiring
> Lead sheathed or metal sheathed wiring
> Conduit wiring
We will be discussing the CTS or TRS or PVC sheath wiring in this answer. Therefore,
CTS or TRS or PVC sheath wiring (Batten wiring):
In this form of wiring, single core, double core, or three core TRS cables with a circular oval shape are used. Single-core cables are most commonly used. TRS cables are chemical, water, and steam resistant, but lubricating oil has a minor effect. TRS cables are mounted on well-seasoned, straight teak wood battens with a minimum thickness of $10mm$.
The cables are held on the wooden batten by tinned brass connection clips (buckle clips) that are already fixed on the batten with brass pins and spaced at a $10cm$ horizontal run interval and $15cm$ vertical run interval.
Now, we will look upon the advantages of these wiring:
> When opposed to other electrical wiring schemes, wiring installation is simple and inexpensive.
> It's both nice and beautiful.
> This wiring system is simple to repair, sturdy, and long-lasting. It also allows for easy customization.
> In a batten wiring scheme, there is a lower risk of current leakage.
The disadvantages of such wiring schemes are:
> Humidity, chemical impact, open and outdoor areas are not suitable for installation.
> There is a high chance of fires.
> Since the wires are exposed to fire, dust, steam, and smoke, they are not resistant to external wear and tear or weather effects.
> In a batten wiring scheme, heavy wires are not permitted.
> Only suitable for use below $250V$.
> More cables and wires are needed.

Note:
It is very important to note that the type of wiring scheme which is used totally depends on the purpose of the wiring. The wiring schemes used in the residential and the commercial buildings fans, lights, pumps and other domestic appliances is known as domestic wiring whereas, the wiring schemes used for the purpose of operating the industrial equipment which require a very heavy power load is known as industrial wiring.