AURET electrical components Germany AURET model AURET price

AURET electrical components refer to lightning arrestor tubes or antenna switch tubes used for overvoltage protection. The tube contains two or more electrodes and is filled with a certain amount of inert gas. A gas discharge tube is a gap-type lightning protection component used in the lightning protection of communication systems. Gas discharge tubes are gap-type lightning protection components that have been widely applied in the lightning protection of communication systems. Discharge tubes are commonly used in the first or first two stages of multi-stage protection circuits to discharge instantaneous lightning overcurrents and limit overvoltages. Due to the very high inter-electrode insulation resistance and very small parasitic capacitance of the discharge tube, it has clear advantages for lightning protection of high-frequency signal lines. The main disadvantages of the discharge tube's protection characteristics are its large discharge delay and less-than-ideal operating sensitivity, making it difficult to effectively suppress lightning waves with a steep wavefront rise. There is also a follow-current issue in the lightning protection of power systems. Commonly used gas discharge tubes include two-electrode and three-electrode discharge tubes. Their encapsulation housing material is mostly ceramic, hence they are called ceramic discharge tubes.

AURET electrical component characteristics

The main parameters characterizing resistor properties include nominal resistance and its tolerance, rated power, load characteristics, and temperature coefficient of resistance. Load characteristics: When the ambient operating temperature is below tR, the resistor must not be used beyond its rated power; when exceeding tR, the load power must be derated. Each type of resistor has specified load characteristics. Additionally, the allowable load is correspondingly reduced under low atmospheric pressure. Under pulse load conditions, the average pulse power is far lower than the rated power, and separate specifications generally apply. Within the specified ambient temperature range, the average relative change in resistance for every 10 °C change in temperature is expressed in ppm/°C. In addition to the above parameters, other technical indicators include nonlinearity (the degree to which the current-voltage characteristic deviates from a linear relationship), voltage coefficient (the relative rate of change in resistance per volt change in applied voltage), current noise (the ratio of the RMS value of the noise potential generated by current flow within the resistor body to the test voltage, expressed by the current noise index), high-frequency characteristics (the curve showing the decrease in resistance with increasing operating frequency due to the influence of distributed capacitance and inductance within the resistor body), and long-term stability (the process of irreversible changes in resistance caused by environmental conditions during long-term use or storage).

AURET electrical component structure

The structure of a power cord is not overly complex, but it cannot be fully understood at a glance. A thorough study reveals that certain aspects require professional knowledge to comprehend the structure of the power cord. The structure of a power cord mainly consists of an outer sheath, an inner sheath, and conductors. Common transmission conductors include metal wires made of copper, aluminum, and other materials. ① The outer sheath, also known as the protective sheath, is the outermost layer of the power cord. This outer sheath serves to protect the power cord and possesses robust characteristics, such as high-temperature resistance, low-temperature resistance, resistance to natural light interference, good flexibility, long service life, and environmentally friendly materials. ② The inner sheath, also known as the insulating sheath, is an essential intermediate structural component of the power cord. As the name suggests, the primary function of the insulating sheath is insulation, ensuring the electrical safety of the power cord by preventing any leakage between the copper wires and the air. The material of the insulating sheath must be soft to ensure it fits well within the intermediate layer. ③ Copper wire is the core component of the power cord, primarily serving as the carrier for current and voltage. The density of the copper wire directly affects the quality of the power cord. The material of the power cord is also a critical factor in quality control, with the quantity and flexibility of the copper wire being additional considerations. ④ The inner sheath is a layer of material wrapped between the shielding layer and the wire core, typically made of polyvinyl chloride (PVC) or polyethylene (PE) plastic. Low-smoke zero-halogen materials are also used. It is used in accordance with process regulations to prevent the insulation layer from coming into contact with water, air, or other objects, thereby avoiding moisture absorption and mechanical damage to the insulation layer.

AURET electrical component principle

The construction of a mercury switch is very simple. It consists of a sealed cylindrical insulating housing containing approximately one-fifth mercury. Two wires leading out from the inside are fixed at one end of the housing. This constitutes a mercury switch. Due to gravity, the mercury bead flows to the lower part of the container. If it simultaneously contacts both electrodes, the switch closes the circuit, turning the switch on. The shape of the container also affects the conditions under which the mercury bead contacts the electrodes.

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