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PVC Electric Cable Adapt To Environmental Regulations
- Jun 21, 2017 -

PVC Electric Cable because of its good physical, chemical, electrical, flame retardant properties, the twentieth century, the seventies and seventies began to use soft PVC Electric Cable as the insulation material, China's PVC Electric Cable cable material development and application began in the fifties of last century. With the PVC Electric Cable resin, plasticizers and industrial additives to improve production capacity and the promotion and application of new varieties of development, the cable industry has a qualitative leap. In the 21st century, with the enhancement of human environmental awareness and the concern of people about their own health, environmental issues have become the focus of attention of human society. Many countries, regions and organizations have formulated strict standards and regulations to restrict the use of harmful substances. Is RolS and REACH regulations. To seek new ways to improve the utilization of resources, to meet the requirements of environmental regulations, environmental protection PVC Electric Cable cable material came into being, and quickly become the current development of PVC Electric Cable cable material one of the themes.

Wire and cable (cable) market demand for the ever-changing and expansion of PVC Electric Cable and a variety of new additives (such as flame retardants, smoke suppressants) in-depth study, the rent of PVC Electric Cable materials, new technologies, new materials, new products The promotion and application. In the cable industry to use a large number of organic materials (such as plastic, rubber), the amount of PVC Electric Cable cable material in the first of our organic materials.

In 1984, China's PVC Electric Cable cable material production of about 169,000 tons, accounting for about 13.4% of the total amount of PVC Electric Cable resin; in 2000, PVC Electric Cable Cable material production has reached 254,000 tons. With the PVC Electric Cable resin, plasticizers and industrial additives to improve production capacity and the promotion of new varieties and application development, the cable industry has a qualitative leap.

At present, China's cable industry has developed rapidly, the existing nearly 4,000 cable manufacturers, more than 300 cable materials plant, only in Yunnan Province, there are more than 40 production scale of different sizes of wire factory.

At present, the cable manufacturers of cable materials on the application and requirements are very different: ① part of the large-scale heavy reputation, re-quality cable manufacturers on the PVC Electric Cable material requirements are high, in addition to product performance to "wire and cable with soft poly (GB 8815-88, GB8815-2000), but also corresponding, such as density, hardness, economic performance and other technical indicators and product performance requirements; ② part of the small-scale cable factory to low-cost products To participate in the fierce market competition, which in addition to product performance to meet the assessment indicators, but also consider the cost of materials.

All in all, the cable manufacturers in order to reduce the cost of production materials, improve economic efficiency, to meet market demand and competition, in different periods of PVC Electric Cable material requirements and development is different. Nearly 20 years, the development and application of PVC Electric Cable materials generally experienced ordinary PVC Electric Cable, flame retardant PVC Electric Cable, non-lead PVC Electric Cable, PVC Electric Cable technology and other special stage.

PVC Electric Cable wire and cable environmental requirements

Developed countries are strictly prohibited to use non-environmentally friendly cable, China also attaches great importance to this area. China's relevant laws and regulations stipulate that important buildings prohibit the use of PVC Electric Cable wire and cable, must use halogen-free low smoke cross-linked polyolefin insulated wire and cable to avoid a large number of smoke when the smoke, chlorine, causing casualties. The same time as the above-

Environmental protection cable will be a strong driving cable industry development, enhance the competitiveness of cable manufacturers, and green practice and innovation, the cable industry in the sustainable development of the road more and more stable. In recent years, China's cable enterprises to environmental protection cable, low smoke and halogen-free cable and other directions, as far as possible does not contain lead, cadmium, mercury and other heavy metals, does not contain brominated flame retardants, does not produce harmful halogen gas, Do not produce corrosive gases, burning less heat, do not pollute the soil, etc., environmental protection cable will be more favored by the market, in the grid company tender more easily get high orders.

Users of the requirements of environmentally friendly wire and cable, summed up the following points:

1. Requires low levels of lead and heavy metals

As we all know, lead and some heavy metals can adversely affect human health, and in PVC Electric Cable formulations, usually need to mix lead, cadmium, barium and other heavy metal compounds additives. However, since the 90s of last century, some developed countries and large electrical companies have enacted laws and regulations, in the use of PVC Electric Cable wire and cable, there are eight kinds of heavy metal content shall not exceed the provisions. These new requirements not only bring new business opportunities to wire and cable manufacturers, but also to PVC Electric Cable cable manufacturers to bring serious challenges.

2. Requires its low smoke and low hydrogen peroxide

Good flame retardant PVC Electric Cable cable is a very obvious advantage, but the ordinary flame retardant PVC Electric Cable cable in the fire burning, will release a thick black smoke and a lot of HCI gas, resulting in the fire after the "second Disaster ", seriously affecting the evacuation and fire rescue work carried out. Therefore, in the wire and cable proposed flame retardant requirements at the same time, in some occasions will be further proposed "low smoke" and "low HCI" requirements.

3. require low toxicity or non-toxic

For some may be in contact with food, blood products, household appliances, medical and health appliances and children's electric toys on the use of cables, in addition to lead-free non-heavy metals, but also requires non-toxic (or low toxicity). That is to say, all the ingredients used in the PVC Electric Cable formulation should be non-toxic. Cable material contains a lot of plasticizer, but the manufacture of non-toxic materials must use non-toxic plasticizer. Therefore, this PVC Electric Cable material requirements than lead-free non-heavy metal materials higher, the price is naturally more expensive.

4. other banned with

At present, the EU is considering the laws and regulations, the following items were limited to ensure that the wire and cable can be combined with environmental requirements. For example: 1) asbestos; 2) more by biphenyl and its ethers, polybromophenol; 3) polychlorinated biphenyls; 4) short chain (C10 ~ C13) chlorinated paraffin.

As environmental issues become more and more important, many countries have developed various environmental policies, so people are more inclined to use green cables. Low smoke halogen-free flame retardant cable material is one of the more popular environmentally friendly cable. Although China's market demand for green cable is growing, but compared with developed countries, China in the relevant policy development and mandatory applications still have a long way to go, China should improve environmental cable standards as soon as possible.

PVC Electric Cable cable material composition of the main components are: polyvinyl chloride resin, dioctyl phthalate, stabilizers, plasticizers, inorganic fillers, fillers, lubricants, antioxidants, colorants and other mixed kneading Extruded to prepare the composition.

The plasticizer content is usually between 50PHR and 60PHR. Often choose heat resistance and electrical insulation properties Excellent plasticizer In order to better improve the heat resistance can be added trioctyl trimellitate. A variety of plasticizers together with the usual effect is the best, in fact PVC Electric Cable cable material formulations in the plasticizer are also used together. Insulating strong PVC Electric Cable cable material main agent can choose phosphate, phthalate as the main agent is applicable to the general level. The thermal resistance and volatility of the plasticizer are the decisive factors in the high temperature performance of the cable material.