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How to distinguish between strong current and weak current

by:Carefiber      2020-03-27
How to distinguish strong electricity from weak electricity, comprehensive wiring of strong electricity and weak electricity, what does strong electricity refer to, and what does weak electricity mean Let's understand today how to distinguish between strong electricity and weak electricity 1. What is weak current: Weak current generally refers to DC circuits or audio, video lines, network lines, and telephone lines. The DC voltage is generally within 36V. The electrical appliances such as the signal input (cable TV line) and audio equipment (output end line) in household appliances, such as telephones, computers, and televisions, are all weak electrical equipment. 2. What is strong electricity: Strong electricity refers to the electrical part of the electrical field. Strong current generally refers to AC voltage above 24V. Such as household electric lights, sockets, etc., the voltage is 110 ~ 220V. Electrical appliances such as lighting fixtures, refrigerators, televisions, audio equipment (input terminals) in household electrical appliances are all high-power electrical equipment. Relative to weak current. 3. Classification of strong electricity: Electronic people are habitually divided into two parts: strong electricity (electricity) and weak electricity (information). The two are both related and different. Generally speaking, the processing object of strong electricity is energy (electricity), which is characterized by high voltage, high current, high power, and low frequency. The main considerations are reducing losses, improving efficiency, and weak current. The main processing objects are information, that is, the transmission and control of information. Its characteristics are low voltage, low current, low power, and high frequency. The main consideration is the effect of information transmission, such as the fidelity, speed, and breadth of information transmission. ,reliability. Generally speaking, weak current projects include television projects, communication projects, fire protection projects, security projects, imaging projects, etc. and integrated wiring projects serving the above projects. Weak electricity is for strong electricity. Strong electricity = (380/220), high voltage regardless. Finite fiber cabling consulting hotline 400-800-5539; 4, the use of strong electricity: In the power system, the voltage below 36v is called the safety voltage, the voltage below 1kv is called the low voltage, the voltage above 1kv is called the high voltage, and the line directly supplying power to the user is called the power distribution line. For example, the user voltage is 380 / 220v. It is called low-voltage power distribution line, which is also called strong electricity in home decoration (because it is the highest voltage used by the home). Strong current generally refers to AC voltage above 24V. Such as household lamps, sockets, etc., the voltage is 110V ~ 220V. Household appliances such as lighting fixtures, electric water heaters, heaters, refrigerators, televisions, air conditioners, and audio equipment are all high-power electrical equipment. Finite is fiber. 5, the difference between strong and weak electricity (1) Different AC frequencies The frequency of strong electricity is generally 50Hz, which is called 'power frequency', which means the frequency of industrial electricity: The frequency of weak electricity is often high frequency or ultra-high frequency, measured in KHz (kilohertz), MHz (megahertz). (2) Different transmission methods Strong electricity is transmitted by power transmission lines, and weak electricity is transmitted by wire and wireless. Radio is transmitted by electromagnetic waves. (3) Different power, voltage and current Strong electric power is measured in kilowatts, megawatts, voltage is measured in volts and kilovolts, and current is measured in amperes and kiloamperes; weak current power is measured in watts and milliwatts, voltage is measured in volts and millivolts, and current is measured in milliamperes and microamps Therefore, its circuit can be composed of printed circuits or integrated circuits. 6.How to distinguish between strong and weak electricity 1. The basic element of how strong and weak electricity is distinguished is voltage. Strong current has a higher voltage, usually 220V or higher; those below 220V are weak. 2. Strong electricity conducts electrical energy, while weak electricity conducts signals. For example, electric shavers, flashlights, etc. conduct electrical energy and belong to the category of strong electricity. If it is only two dry batteries and the voltage is small, it is very incorrect to judge it as weak electricity. Finite focuses on fiber optic cabling. 3. High voltage includes strong electricity, strong electricity does not necessarily belong to high voltage; low voltage includes weak electricity, weak electricity must belong to low voltage; low voltage does not necessarily mean strong electricity, and strong electricity does not necessarily mean low voltage. 4. Strong electric wires use thick plastic insulation layer, the diameter of the copper core wire is large, and the inner copper conductor is composed of one or more bare wires. The voltage and current of the weak electric wire are not large, so the insulation layer is relatively thin, and the diameter of the copper core wire is relatively small, and it is composed of more than two insulated thin wires.
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