what is the difference between shielded and non shielded wire?

1.What is unshielded wire?

Unshielded wire refers to twisted pair without a shielding layer in the electronic field. This type of wire has a simple structure, consisting of four twisted wires without an external shielding layer to reduce the impact of electromagnetic interference. UTP is commonly used for small and medium-sized network communication in homes, offices, and other places, with generally slower speeds but relatively lower prices.

2.What is a shielded wire?

Shielded wire refers to twisted pair cables with shielding layer protection in the electronic field. The shielding layer can effectively reduce external electromagnetic interference and provide better signal transmission quality. STP is commonly used in places that require high-speed and high-quality network communication, such as enterprises, data centers, etc. But due to its complex structure and expensive price, its usage range is smaller than UTP.

1. The appearance is different. The former has a metal mesh and a layer of film on the outside, while the latter does not. It is only wrapped in plastic skin without any other protection.

2. The difficulty of installation varies. The former is very troublesome to install and requires an additional special connector. At the same time, the technical requirements for the installation personnel are also relatively high. The latter is easy to install, just plug it directly into the corresponding port.

3. The scope of application varies. When using the former, it is necessary to ensure that the entire device has shielding function and is suitable for airports. The latter can be used for network cabling and is more suitable for use in offices.

4.Differences in anti-interference performance.
Unshielded network cables are mainly used in environments without interference, so relatively speaking, shielded network cables are used in environments with interference. Unshielded Ethernet cables do not have a shielding layer, and their diameter is relatively small, which also saves space. When used in an environment without interference, they are not only convenient to use, but also save space when wiring.

5. Differences in transmission speed.
The transmission speed of unshielded Ethernet cables is actually faster than that of shielded Ethernet cables. If the spatial structure of the wiring is relatively close to interference sources such as air conditioning, shielded network cables should be used.
The difference between single shielded network cables and double shielded network cables is that double shielded network cables have an additional layer of shielding compared to single shielded network cables, which can be seen from their names. The transmission speed of dual shielded network cables is slower than that of single shielded network cables.
6.Price difference.
In terms of price, the price of unshielded Ethernet cables is slightly cheaper than the cost of shielded Ethernet cables. The price of internet cables is not entirely determined by transmission speed. Shielded network cables exist to cope with environments with interference sources, so their cost is relatively high and wiring is also difficult.

1. Electromagnetic field

When there is lightning and electrostatic discharge, the electromagnetic field has electricity, and a shielding layer is needed to shield the electromagnetic field.

2. The circular circuit of the casing ground wire

Shielded wire can shorten the loop of the shell ground wire, and use the shielding layer of shielded wire to suppress the serious consequences of lightning in places.

3. The phenomenon of surge

Lightning surge belongs to electrostatic discharge, similar to lightning discharge. The discharge will not increase, but it may damage the communication card, so shielded wires are needed.

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