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[Chemical Knowledge]：wire sheath is what material, should how to choose?

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In modern society, wires have become an indispensable item in people's life and work, and for the protection and packaging of wires, the material of the wire skin has also become very important. So, what is the material of the wire sheath? What are the differences in the characteristics of different materials? How to choose in practical applications?
The materials
the wire sheath are generally divided into PVC (polyvinyl chloride), PE (polyethylene) and LSZH (low smoke halogen free) three. Below, we will introduce in detail the characteristics of these materials, application scenarios and how to buy them.

PVC material wire sheath

PVC material wire sheath has good flexibility and wear resistance, compact structure, airtight. It is generally used in indoor, low temperature and low frequency occasions, such as household electrical wires, voice data transmission lines, bulletproof safety lines, etc. Although PVC material is relatively durable, it will release toxic gases in high temperature situations such as fire, which is harmful to human health. Therefore, it should be used with caution in public places and high temperature occasions.

PE material wire sheath

PE material wire sheath has high heat resistance, corrosion resistance, good air permeability, generally suitable for outdoor or high temperature environment, such as power supply, water conservancy, aerospace, automotive and other industries. In places with harsh climatic conditions, the wires protected by PE materials have certain UV and cold protection effects, and their applicability is very wide.

LSZH material wire sheath

LSZH material wire sheath is a new type of material, it refers to the non-halogen (such as chlorine, bromine, iodine, etc.) (Low Smoke Zero Halogen) flame retardant material. In the event of a fire, the wires made of LSZH will not produce harmful organic compounds such as toxic smoke, which is harmless to human health. Therefore, LSZH material wire is widely used in the need for a high degree of protection of personal safety occasions, such as subways, airplanes, large exhibition halls and so on.

how to choose the material of the wire sheath

In practical applications, we should choose the material of the wire sheath according to specific needs. If used in indoor, low temperature, low frequency occasions, it is recommended to choose PVC material; if you need anti-oxidation, corrosion resistance, breathable, cold and other characteristics, you can consider choosing PE material. If the safety requirements are relatively high, it is recommended to choose LSZH material.

In addition to selecting materials according to application scenarios, we should also pay attention to the following points:

1. Pay attention to the use environment of the wire, especially in outdoor or humid environments, choose a waterproof and moisture-proof wire sheath;

2. Choose products that meet standards, such as national standards, etc.;

3. Pay attention to brand reputation and after-sales service guarantee.

To sum up, the material of the wire sheath is rich and has its own characteristics. Choosing the right wire sheath material can greatly increase the service life and safety of the wire. Therefore, we should choose the appropriate wire sheath material according to the actual application scenario to ensure the safety and reliability of the wire.