As the second largest manufacturing industry in China after automobile manufacturing, the wire and cable industry should also play a leading role in environmental protection. In recent years, environmentally friendly cables have become more and more popular in the market. In developed countries such as the European Union, non-environmental protection has been banned. Cables, China also attaches great importance to this aspect. China’s relevant laws and regulations explicitly require important buildings to prohibit the use of polyvinyl chloride wires and cables. Halogen-free and low-smoke cross-linked PVC wires and cables must be used to avoid a large amount of smoke and chlorine in the event of a fire. Casualties.
Environmental protection cables are the main direction of the future development of the cable industry, which can effectively enhance the competitiveness of cable companies. Because of the many excellent characteristics of environmental protection cables, they are also favored by more and more customers in the market.
Compared with ordinary cables, environmental protection cables have many excellent characteristics, such as no heavy metals, no halogens, no corrosive gas, no soil pollution, etc. If summed up, the requirements of environmental protection cables can be roughly divided into three aspects.
The first is that it does not contain heavy metals. Common PVC cables often contain heavy metals such as lead, cadmium and barium, which are harmful to the human body. Later, some countries stipulated that the content of eight types of heavy metals should not be higher than the specified value, and one of the main advantages of environmentally friendly cables It does not contain heavy metals, which is also its popular selling point in the market.
The second requirement of environmentally friendly cables is low-smoke and halogen-free. When ordinary cables are burnt, they will release a large amount of smoke and toxic gases, which will seriously pollute the air environment and cause harm to the human body. The low-smoke and halogen-free characteristics of environmentally friendly cables can not only protect the environment, but also It can help people evacuate and carry out fire rescue work when a fire occurs.
Secondly, it must be non-toxic. All component materials used in PVC formulations should be non-toxic. Cable material contains a lot of plasticizers, but non-toxic plasticizers must be used to make non-toxic materials. Therefore, this PVC material has higher requirements than lead-free and heavy metal-free materials, and the price is naturally more expensive.
Many countries have different requirements for environmental protection cables. For example, the European Union will restrict environmental protection cables containing asbestos. my country has not been as perfect as the EU in terms of related policy formulation and mandatory application. In this regard, China still has a long way to go.