【Summary description】 Wire is related to the personal safety of every household and the vast majority of fields can not operate normally special commodities, the scope of application J is universal, especially in the temporary wire entanglement and home decoration indoor network demand is particularly large, if the use of shoddy wire and cable, light may lead to short circuit fault, electric shock accident, heavy is likely to cause fire, resulting in casualties.

Guangdong cable manufacturer: How to distinguish good wire cable

The harmfulness of fake and shoddy wires

Wire is related to the personal safety of every household and the vast majority of fields can not operate normally special commodities, the scope of application J is universal, especially in the temporary wire entanglement and home decoration indoor network demand is particularly large, if the use of shoddy wire and cable, light may lead to short circuit fault, electric shock accident, heavy is likely to cause fire, resulting in casualties.

Guangdong cable manufacturers: Characteristics of counterfeit and shoddy wire

1. The cable length is not enough

The key way commonly used by illegal manufacturers is to make an article on the length of wire and cable. The specific length of wire and cable is lower than the standard length, and the charging standard will be implemented according to the standard length. Typical is a roll of packaging cloth wire, in the national industry standards for each roll of 100 meters, measurement verification deviation shall not exceed 0.5%, in fact, the length of each roll of 100±0.5 meters, and many manufacturers are flagrant in the qualified card marked 100±20 meters, the actual length of only 80 meters long, if its market price converted to each meter, And it's not cheap. This kind of relatively easy to identify, one is to see qualified card; Second, sampling inspection length, because the wire is relatively soft, accurate measurement is very easy.

2, Guangdong cable manufacturers: resistance does not conform to the national industry standards

Resistance value exceeds the standard wire in the same flow rate of its environmental temperature is likely to be too high, and then accelerate the aging of the outer cable sheath, resulting in short circuit fault caused by fire accident; And because the resistor exceeds the standard, it will continue to greatly increase the energy consumption of the transmission and distribution process, raising the cost of utilities.

3. Guangdong cable manufacturers: poor raw materials

The first move is to hit copper conductor bad idea, copper conductor accounted for 80% of the cost of wire, poor producer is to control the quality of copper material. The selection of much cheaper residual copper, recycled copper, and even the soil method of copper smelting, copper content is unstable, resulting in a surge in copper conductor resistance. The second is to reduce the use of copper. Reduce the specific section of cable copper wire, the direct consequence of these methods is that the wire in use of excessive temperature, damage cable sheath plastic, short circuit fault caused by fire.

Second, the plastic used in cable sheathing is not right, as well as copper material reduction, a ton of regenerated insulation and meet the requirements of PVC plastic powder price difference of nearly 2000 yuan, but the regenerated insulation residue content is high, low impact toughness, temperature resistance can be reduced with electrical insulation characteristics, this behavior will lead to electrical wiring.

Guangdong cable manufacturers: Identification of fake and shoddy wire

1, look at the identification, reliable manufacturers production wire certificate content generally includes: 3C certification certificate, verification number, product specifications, product implementation standards, rated current, wire length, manufacturing date, operators, testers, enterprise name, production, fixed-line, anti-counterfeiting identification, etc. However, the packaging and printing of counterfeit product labels are often unclear or the specific content of the printing is incomplete.

2, look at the surface, reliable wire plastic skin soft and smooth, tone symmetry. On the surface, it should also be printed with several items in the product qualification certificate, such as: 3C certification certificate, verification number, model specifications, rated current, product implementation standards, enterprise name, etc. At the same time, the handwriting must be clear and not easily erased.