14 December 2019

Casing capping wiring | Definition | instantiation | Advantages | Applications


This is one of the simple forms of electrical wiring systems. Casing capping is one of the oldest methods for the wiring system and it has been very popular is frequently used. In today's world, after post introduction of the conduit or sheathed wiring system, it is preferred for the wiring system. This post will discuss casing capping wiring system, types of joint, 2 way and 3-way design, advantages and disadvantages, applications, etc. 

What is casing capping wiring?

As the name referred to in this wiring. the PVC insulated wires are placed in plastic casing and covered in with a cap. Hence its name is to be casing capping wiring. The process of connecting some accessories for distributing electrical energy from suppliers to home appliances such as lamps, fans, and other domestic appliances is known as the electrical wiring. It is one of the simplest forms of electrical wiring systems.  When you have to use in casing capping wiring the best precaution of is that always use porcelain cleat or washed in between the wall and casing

Casing capping wiring installation

The design is available for 2 way and 3 way. Before we are installing a 3 mm round insulator is used between the casing and the wall to prevent the humidity of the wall affecting the casing.

casing capping installation
Casing capping installation

The second step involves grooving the surface with a width of 1/4 inch which is available in 2 way and 3-way design. The screws are drilled into the casing at a distance of 30 cm to each other.

types of joint used in casing capping
Types of joint

This wiring can be installed in both vertical as well as horizontal positions. Different types of joints are used in this wiring system such as T joint, bridge joint or in L joint, etc.

PVC casing capping product features:

  • Easy to installation
  • Easy to use
  • Completely shockproof
  • Fine finish
  • Durable 

Advantages and disadvantages of casing capping:

Advantages of casing capping wiring:
  • If phase and the neutral wire are installed in the separate slot then repairing is easy.
  • Stay for a long time in the field due to the strong installation of casing and caping.
  • This wiring system is a strong and long-lasting wiring system.
  • Repairing becomes very easy if the phase and neutral wire are installed in separate slots.
  • It is cheaper compared to a steel conduit and sheeted wiring system.
  • It is considered as safe from smoke, dampness, and humidity.
  • Customized installation can be done very easily for this system.
  • Reduced risk of electric shock can be expected because all the cables are covered.
  • This wiring system is cheap and durable.
Disadvantages of casing capping wiring:
  • The humidity is directly effected by casing and capping, therefore, this wiring system is not used for humidity places.
  • The initial cost of the system is high, so it is expensive.
  • Costly to repairing and need more materials.
  • The material can't be found easily in the contemporary.
  • The place of acid and alkaline are present this system is not suitable.
  • While ants may damage the casing and caping wood.

For detailed information: 

Read more >> Advantages and disadvantages of casing capping wiring


  • Distributing the surface household wires 
  • This wiring system can be used covering as well as protecting, unconcealed wiring
  • Low voltage devices used in homes and offices
Explore more information:

You will also learn some other wiring system:

We hope that you have got a better understanding of this concept. Furthermore, any quires regarding this concept or some electrical and electronics projects give your feedback in the comment section below.