Basic knowledge of switch socket and electrician
1, Explanation of common terms used by electricians
Strong electricity and weak electricity: Strong and weak electricity are distinguished by the safety voltage of the human body. Voltage above 36V is called strong electricity, and voltage below 36V is called weak electricity.
Load: Refers to specific electrical equipment, that is, devices that consume electrical energy.
(1) Resistive load: Compared with the power supply, when there is no phase difference between the load current and the load voltage, the load is resistive (such as the load is a white flag lamp, an electric furnace, etc.). In layman's terms, the pure resistive load that only works through resistive components is called resistive load.
(2) Inductive load: Generally, the load with inductive parameters, that is, the load that conforms to the phase difference between the load current and the load voltage compared with the power supply, is called inductive load (such as the load is a motor or a transformer). In layman's terms, high-power electrical products made by the principle of electromagnetic induction, such as motors, compressors, relays, fluorescent lamps, etc., This type of product requires a much larger (approximately 5-10 times) starting current than the current maintain normal operation when starting.
2, Switch & socket product material introduction
Slider (internal parts of switch)
Slider: Our company adopts imported Teflon from American DuPont company (Only JUNON SONGTIAN exclusively uses this high-performance material in the market), which has better flame retardancy, higher melting point and stronger lubricity than nylon and copper used in other products on the market.
Insulation: Not affected by the environment and frequency, the volume resistance can reach 1018 ohm·cm, the dielectric loss is small, and the breakdown voltage is high.
High and low temperature resistance: little effect on temperature, wide temperature range, applicable temperature -190~260℃.
Self-lubricating: It has the smallest coefficient of friction among plastics and is an ideal oil-free lubricating material.
Surface non-stickiness: known solid materials can not adhere to the surface, it is a solid material with the smallest surface energy.
Atmospheric aging resistance, radiation resistance and low permeability: long-term exposure to the atmosphere, the surface and performance remain unchanged.
Non-combustibility: The oxygen limit index is below 90 and will not burn.
Understanding basic electrician knowledge of switch & socket, etc. will enable you to better choose and purchase these products.