The weather is unpredictable, and we must be able to have solutions at any time. Zhengzhou Jinshui Industrial Co., Ltd. will gradually analyze the impact of climate change on wires and cables.
The temperature drop is a common seasonal phenomenon, especially in the cold winter. Although this meteorological change has a profound impact on both humans and the natural environment, its potential impact on the use of wires and cables cannot be ignored. Under extremely cold temperature conditions, wires and cables may be damaged, affecting power supply, communications, and data transmission.
As the temperature drops, the resistance of the conductor will increase. This is because low temperatures increase the resistance of metal conductors, resulting in a loss of electrical energy. This means that in cold weather conditions, the efficiency of power transmission will decrease, and the energy efficiency of wires and cables will also decrease.
Wires and cables typically include insulating materials to prevent current leakage and protect the line from the external environment. However, under extremely cold conditions, the insulating materials may become brittle and easily cracked, resulting in a degradation of the performance of the wires and cables. This may cause a short circuit or wire and cable failure, causing damage to the power system and communication system.
Wires and cables may be affected by snow and wind weight accumulation, which reduces their performance. Snow and wind weight can cause wires and cables to sag, and even cause them to break or disconnect. In addition, ice and snow may also cause damage to the insulation of wires and cables.Therefore, in cold climates, it is crucial to regularly clean and maintain wires and cables.
In the face of the upcoming cold climate, the following measures can be taken to reduce the impact of falling temperatures on wires and cables:
1.Choose cold-resistant cables: If the economy permits, it is recommended to use cold-resistant cables, generally with minus 20℃, minus 30℃, minus 40℃, minus 60℃, etc. Cold-resistant cables are made of cold-resistant materials and have extremely strong low-temperature resistance. In the cold external environment, the insulation and sheath surface can still be guaranteed to be crack-free and unbroken.
2.Factory transportation and storage: When the product is loaded onto the transport vehicle after leaving the factory, warming and protection measures are required. For example, use closed transportation tools to prevent the product from being directly exposed to the outside; pad the product with a soft cushion, such as bedding or other softer foam; handle with care when loading, do not load roughly, and avoid excessive bending of the product.
3.On-site unloading management: When arriving at the destination or construction site, it is best for the product supplier to send personnel to supervise to prevent rough operations when unloading the product.
4.Precautions during cable laying: Pay attention to everything during cable laying and be prepared at all times. Due to the low temperature in winter, when the snow accumulates enough, the cable is easily covered with snow and ice, causing the cable to pull down the transmission tower or the pole and the cable itself to break. In order to prevent this from happening, pay attention to choosing cables that can withstand the cold when choosing materials.
5.Winter construction preparation: Before the arrival of winter construction, relevant construction personnel should be organized to learn construction measures and preventive measures, be familiar with the construction drawings and technical documents of cable laying, and formulate a strict winter construction management system, strictly implement the relevant winter construction regulations, construction measures and preventive measures, ensure that people, machines, objects and materials pass the winter smoothly, and ensure that the quality and progress of the project are not affected.
The drop in temperature has brought a series of challenges to the normal operation of wires and cables. Power companies, communication operators and other related industries must take corresponding measures to ensure the reliability and performance of wires and cables under cold conditions. When purchasing and installing wires and cables, it is necessary to fully consider the expected lowest ambient temperature, select suitable wires and cables, and appropriate laying methods, as well as conduct regular inspections and maintenance.
In thunderstorm weather, it is crucial to protect power cables and related facilities to ensure the safe and stable operation of the power system. The impact of thunderstorm weather on wires and cables is mainly reflected in the following aspects:
During thunderstorms, lightning releases huge charges, which may form induced currents on wires. Although some wires are designed with anti-interference capabilities and can buffer the impact of induced current, the wires may still release the charge to the ground through the grounding line, thereby reducing the impact on the wires. In addition, lightning and overvoltage in the system may cause cable insulation breakdown or damage.
The quality of the wire will also affect its performance in thunderstorms. If the insulation layer of the wire is of poor quality or damaged, it may cause a short circuit in the wire when thunder strikes. Therefore, choosing high-quality wires and regularly maintaining the wires are the key to avoiding short circuits.
The electromagnetic field generated by lightning can interfere with and damage surrounding electronic equipment, and even cause electric sparks, leading to serious consequences such as fire and explosion.
In order to reduce the impact of lightning weather on wires and cables, the following measures can be taken:
1.Regular maintenance of wires: Ensure that the insulation layer of the wire is of good quality, repair wire damage in time, and avoid short circuits caused by quality problems.
2.Use wires with strong anti-interference capabilities： Choose wires designed with strong anti-interference capabilities to reduce the impact of induced currents.
3. Reduce the voltage of nearby equipment：Reduce the impact of high-voltage equipment on wires and reduce the possibility of wires being impacted.
4.Reasonable layout of wires： When designing wires, maintain an appropriate distance to avoid arcing between wires, thereby reducing the risk of short circuits.
5.External lightning protection measures：Install lightning rods or other lightning protection equipment around wires and cables to protect wires from direct lightning strikes.
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Control cables are used in control system circuits. Depending on the location where they are used, the cable materials and models vary.
Overhead cables are composed of two or two groups of transmission lines, and transmission lines are what we call cables.
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