One of the oldest and most commonly seen wiring in use today is casing capping wiring. PVC-insulated wires are encased in plastic casings and protected with a cap in this approach to electrical wiring. The casing capping wiring is generally recommended for low-voltage wiring in homes, offices, and devices, as well as for wire distribution and protection.
The casing is typically a rectangular strip with a grey or white channel and cap. It comes in sizes of 1.5 inches in width and 0.8 inches in thickness, with a standard “case and cap” length of 39.4 inches. The system has a 20-year lifespan and performs admirably in homes and offices.
PVC casing and capping is a fantastic product that has many uses in wiring installations. They offer insulation and electrical safety and support the distribution load of the wires in accordance with their capacity. PVC has the highest level of chemical resistance available, making it the most durable material on the market. It also aids in shielding the cables and wires from damage.
See also: Types of cables: Know different types of cable for different purposes
Casing capping wiring: Types
There are four varieties of casing capping wiring:
Press and fit
The most common type of casing capping wiring is press and fit, which has one component on the bottom surface and another on top. The installation procedure is fairly simple. The bottom portion is first fastened to the walls. The wiring is then fed downward, and the cover is pressed against the base.
Sliding and fit
Deeper-lying casings that are challenging to press and fit the capping are more typical. PVC is a particularly difficult material to press; sliding makes it much easier to install.
Trunked fit
Trunked fit is a practical wiring system that is frequently used in street light installations as an added layer on subsurface voltage wires.
Grilled fit
For telephone cable management, a typical casing and capping wiring system type that offers lots of customisation is called grilled fit.
Casing capping wiring: Advantages
- All of the wires are kept together by the manufactured product’s internal locking system, which also holds them all inside the casing, assisting you in developing the desired aesthetics.
- There are many different sizes and fits for casings and caps.
- PVC casings and caps are simple to install in any environment, including the office or the home.
- It is inexpensive.
- PVC is also completely enclosed, which safeguards us against unintentional electric shocks and is rust-free—great for monsoons.
- Avoid letting the tangled cables get in the way of your renovation or rewiring project.
- Guaranteed toughness because unplasticised PVC retains its shape even after prolonged use.
Casing capping wiring: Disadvantages
- Since this wiring system contains plastic, there is a chance of a serious fire from short circuits.
- This wiring system is not appropriate for use in industries with acidic environments.
- Finding any wire-related fault is challenging.
FAQs
What safety measures will you implement when casing wiring?
Some safety measures to implement are: Using the bridge point, if the two cables are traversing each other. Varnishing the casing before installing them. Do not overload.
What kind of cable is best for covering and encasing wiring?
PVC casing and capping is a superb product that can be used for a variety of applications and offers to distribute the load of the wire in accordance with the wire's capacity.
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