1, Definition of Panel Wires and Cables
Panel wires and cables, as the name suggests, refer to wires and cables specifically used inside electrical panels, control boxes, and instrument equipment. They are usually composed of one or more insulated wire cores, covered with a protective layer on the outside, used for the transmission and distribution of electrical energy, as well as the transmission and reception of signals in a limited space. Panel wires and cables not only have the basic functions of ordinary wires and cables, but also have unique structural and performance requirements due to their specific application scenarios.
2, Structure of panel wires and cables
The structure of panel wires and cables is relatively complex, but overall it can be divided into the following main parts:
Conductor: A conductor is the core part of a wire or cable, used for transmitting electrical current. The conductors of panel wires and cables are usually made of metal materials with good conductivity such as copper or aluminum to ensure smooth transmission of current.
Insulation layer: The insulation layer is located outside the conductor and serves to isolate the conductor from the external environment, preventing current leakage and short circuits. The insulation layer of panel wires and cables is usually made of insulation materials such as polyvinyl chloride (PVC) and polyethylene (PE), which have good electrical insulation performance and mechanical strength.
Shielding layer: In certain panel wires and cables, a shielding layer is installed to reduce electromagnetic interference. The shielding layer is usually made of metal foil or metal woven mesh, which can effectively shield the interference of external electromagnetic fields and ensure stable signal transmission.
Sheath: Sheath is the outermost layer of panel wires and cables, which serves to protect the wires and cables. It is usually made of materials that are wear-resistant, corrosion-resistant, and have good weather resistance, such as polyvinyl chloride (PVC), polyethylene (PE), etc., which can resist external environmental erosion and mechanical damage.
3, Performance requirements for panel wires and cables
Panel wires and cables have a series of unique performance requirements due to their specific application scenarios, mainly including the following aspects:
Electrical performance: Panel wires and cables need to have good conductivity and electrical insulation properties to ensure smooth transmission of electrical energy and stable transmission of signals. At the same time, they also need to meet certain resistance range requirements to adapt to different application needs.
Mechanical properties: Panel wires and cables need to have good mechanical properties such as tensile strength, elongation, bending, elasticity, flexibility, fatigue resistance, wear resistance, and impact resistance to adapt to complex installation and use environments.
Thermal performance: Panel wires and cables need to have a certain heat resistance level and operating temperature range to ensure normal operation in high temperature environments. At the same time, they also need to have good heating and cooling characteristics, as well as thermal performance requirements such as current carrying capacity, short circuit and overload capacity.
Corrosion and climate resistance: Panel wires and cables need to have good resistance to electrochemical corrosion, biological erosion, chemical (oil, acid, alkali, chemical solvents, etc.) erosion, salt spray, sunlight, cold, gas, and moisture to adapt to harsh usage environments.
Aging resistance: The ability of panel wires and cables to maintain their original performance under mechanical stress, electrical stress, thermal stress, and other external factors, or under external climatic conditions. This requires them to have good aging resistance to extend their service life.
4, Application scenarios of panel wires and cables
Panel wires and cables are widely used in various electrical panels, control boxes, and instrument equipment due to their unique structure and performance requirements. Specific application scenarios include but are not limited to the following aspects:
Industrial automation control: In industrial automation control systems, panel wires and cables are used to connect various sensors, actuators, and control equipment, to achieve signal transmission and control command issuance.
Communication equipment: In communication equipment, panel wires and cables are used to connect various circuit boards, modules, and interfaces, achieving signal transmission and data exchange.
Household appliances: In household appliances, panel wires and cables are used to connect various circuit boards and components, achieving the transmission of electrical energy and the reception of signals.
Aerospace: In the aerospace field, panel wires and cables are used to connect various electronic devices and systems, ensuring the normal operation and safety of aircraft.
Transportation facilities: In transportation facilities, panel wires and cables are used to connect various signal lights, monitoring equipment, and control systems, achieving intelligent transmission of traffic signals and traffic management.
