What are the selection criteria and application scenarios of Power Connection Cable?

The selection criteria and application scenarios of Power Connection Cable involve multiple aspects, including technical requirements, environmental adaptability, performance indicators, etc. The following is a detailed analysis of the selection criteria and application scenarios:

When selecting a power connection cable, first confirm whether the rated voltage of the cable meets the use requirements. The rated voltage indicates the maximum voltage that the cable can withstand during normal operation, and should not exceed the rated value of the cable. According to the working voltage of the power system, there are usually low-voltage (such as 300V), medium-voltage (such as 1kV), and high-voltage (such as 10kV and above) power connection cables.
The selection of the rated voltage should match the rated voltage of the power equipment to ensure that the cable can work stably in long-term use without overheating, damage or electrical failure.
Conductor material
The conductor materials of power connection cables are usually copper, aluminum, etc. Copper conductor cables have better conductivity but higher cost; aluminum conductor cables are lighter and cheaper, but their conductivity is slightly inferior.
Select the appropriate conductor material according to the needs. Usually copper conductors are suitable for high current transmission, and aluminum conductors are suitable for low power transmission and long-distance wiring.
The current carrying capacity of the cable
The current carrying capacity of the cable refers to the current that the cable can carry at a certain temperature. When selecting, it is necessary to select the appropriate cable specifications according to the load requirements of the power system. Excessive or insufficient current carrying capacity may cause the cable to overheat, damage, or even cause safety accidents.

Insulation materials
The insulation materials of power connection cables are generally PVC, XLPE (cross-linked polyethylene), EPR (ethylene-propylene copolymer), etc. Different insulation materials have different temperature adaptability, pressure resistance, corrosion resistance, etc.
When selecting insulation materials, factors such as the working environment temperature, humidity, and voltage of the cable should be considered. For example, XLPE materials have good heat resistance and are suitable for use in high temperature environments; PVC is suitable for conventional environments, but has poor high temperature resistance.
Sheath materials
The sheath materials of cables are usually PVC, PE (polyethylene), PUR (polyurethane), etc., which are mainly used to protect cables from external physical damage and environmental factors.
When selecting sheath materials, the external environment of the cable should be considered, such as whether waterproof, UV-resistant, grease-resistant and other functions are required.
Fire resistance and fire resistance
The fire resistance requirements of power connection cables are high, especially in the industrial and construction industries, requiring cables to be difficult to burn in fires and to be able to transmit power for a certain period of time. At this time, low smoke zero halogen (LSZH) cable can be selected, which has low smoke generation and halogen-free characteristics, which is conducive to improving fire safety.
Environmental adaptability
The adaptability of the cable to the environment includes temperature, humidity, corrosiveness, mechanical strength, etc. For example, some power connection cables need to be used in underground or underwater environments, and waterproof and anti-corrosion characteristics need to be considered at this time; some cables need to cope with extreme temperature changes or humid environments, and require the selection of cables with good high temperature resistance, cold resistance or moisture resistance.
Shielding and anti-electromagnetic interference function
In an environment with high electromagnetic interference, it is necessary to select power connection cables with shielding functions, such as shielded copper wire cables, aluminum foil shielded cables, etc., to prevent the influence of external electromagnetic interference on the power system.
Application scenario
Industrial equipment
Power connection cables are widely used in industrial production, such as mechanical equipment, automated production lines, power equipment, etc. In these scenarios, power connection cables usually need to carry high currents and are required to have the ability to resist mechanical damage and high temperature.
Building power system
In the building power system, power connection cables are used to connect power supplies, distribution cabinets, lighting systems and other equipment. The specifications and types of power connection cables vary according to the scale and usage requirements of the building. For high-rise buildings, commercial buildings, etc., low-smoke halogen-free cables are mostly used to improve safety.
Power transmission and distribution network
In the power transmission and distribution network, power connection cables are mainly used for the transmission of high-voltage power. Power connection cables need to have high voltage resistance, temperature resistance, and anti-electromagnetic interference characteristics to ensure a stable supply of electricity.
Petroleum, natural gas and chemical industry
In the power systems of the petroleum, natural gas and other industries, due to the particularity of the working environment, such as high temperature, high humidity, and high corrosion, power connection cables need to have anti-corrosion, explosion-proof and high temperature resistance characteristics. Common cables include high-temperature resistant polyolefin insulated cables, corrosion-resistant aluminum alloy cables, etc.
Transportation
In the transportation industry, especially in railways, subways and other systems, power connection cables are used for electrified railway power supply systems, signal systems and station power supply. Cables need to have characteristics such as high voltage resistance, anti-electromagnetic interference resistance, and wear resistance.
Home and commercial electricity
In residential and commercial buildings, power connection cables are used for power supply and distribution. Select the appropriate cable specifications according to the needs, generally choose low-voltage cables, such as PVC insulated cables, etc.
Underwater and marine applications
For underwater or marine applications, power connection cables need to have excellent waterproof, corrosion resistance, UV resistance and other characteristics, such as dedicated submarine cables, diving cables, etc.

When selecting Power Connection Cable, it must be reasonably selected according to actual use needs, working environment and performance requirements. Focus on the rated voltage, current carrying capacity, conductor material, insulation and sheath material selection of the cable, as well as the safety, durability, environmental adaptability and other factors of the cable. Different application scenarios, such as industry, construction, power transmission, chemical industry, transportation, etc., have different requirements for power connection cables, so all aspects should be considered comprehensively when purchasing.