As the main medium of power transmission, wire and cable play an important role. The quality is related to the safety of everyone's life and property. We always say that we should resist inferior wire and cable, but what kind of influence will inferior wire and cable have? We may not be so clear. Today, Hangzhou Zhongce Cable Co., Ltd. will take you to understand how inferior cables harm everyone.

Judging the quality of the cable can be from the copper conductor, identification, insulation, resistance, can also be sent to a third-party testing agency to detect, with the above method to identify, then what kind of situation is unqualified below to explain in detail.

The first thing we see after receiving the product is the product identification of the wire and cable. The identification needs to include the product model, specification, rated voltage, factory name and other information. The wire product should also have the CCC mark. If the information is vague, it can be judged It is not a product produced by a regular manufacturer. In addition to judging the specific model specifications, these marks also have the same function as the product's instruction manual. The construction personnel can identify the model and voltage level of the wire and cable according to this information to prevent the wrong connection and misuse during use. When the identification is not standardized, the information is incomplete, or the information is wrong, it may lead to the construction personnel to identify the wrong, and even cause electrical accidents. Hangzhou Zhongce Cable Co., Ltd. factory products have a clear logo clearly show every detail.

After reading the logo, we need to peel off the insulation layer from the sheath material to check whether the quality passes. Some cable manufacturers believe that the current and resistance requirements of the cable can be met, and the material of the insulating layer can be saved. In fact, the quality of the outer insulating layer and sheath of the wire and cable will directly affect the service life and operational safety of the wire and cable. The main function of the sheath is to protect the cable from the surrounding environment (such as temperature, humidity, chemical environment, etc.) and safe operation. The main function of the insulation layer is to insulate the conductor in the wire and cable from the surrounding environment or adjacent conductors. If non-virgin plastic is used, it may result in exposed conductors or poor insulation in some areas of the wire and cable. Enterprises that do not implement quality management cannot control the eccentricity of insulation and sheath, resulting in uneven thickness, which may be broken down by current in thin places. If the quality of the sheath and insulation layer is not up to standard, electrical short circuit, fire and other accidents may occur during the construction process. Hangzhou Zhongce Cable Co., Ltd. uses native materials, wear-resistant, and strictly controls every production detail. It has passed the national ISO system certification to ensure that the products produced are national standard products.

The main material of wire and cable products is copper conductor. In recent years, the price of copper has been rising continuously. In order to reduce costs and expand profits, many enterprises will use inferior metal copper or recycled copper with more impurities as conductor materials, or directly reduce the conductor cross section and pretend to use small cross section as large cross section. What's more, in order to avoid detection, the use of copper is reduced by using the method of thin and thick middle. Some cable manufacturers do not have a formal production system certification, the production process is not qualified, the technology is not hard, resulting in excessive conductor resistance. When the line passes through, the loss becomes larger, the wire and cable are overloaded, the conductor heats up, and the aging of the coated insulation and sheath materials is accelerated, resulting in leakage and short circuit of the power supply line, and even fire, which seriously damages the safety of everyone's life and property. Hangzhou zhongce cable co., ltd. uses oxygen-free copper to ensure the conductivity of the cable, reduce the loss, and meet the national standards.

I believe everyone has a preliminary understanding of the dangers of fake and shoddy wires and cables. Therefore, when we buy wire and cable, we must choose the products of regular manufacturers and learn to distinguish the advantages and disadvantages. As a well-known domestic enterprise, Hangzhou Zhongce Cable Co., Ltd. strictly controls the product quality, every process and every test to ensure that every wire and cable meets the national standards and the standards of the International Electrotechnical Commission, so that everyone can use it with peace of mind and buy it with peace of mind.