The difference between home improvement and weak electricity

About strong electricity:

The concept of strong electricity is relative to weak electricity. The strong electricity and the weak electricity are divided by voltage, and the working voltage is strong under 220V AC, and the following is weak electricity.

Strong power generally means that the AC voltage is above 24V. Such as electric lights, sockets, etc. in the home, the voltage is 110 ~ 220V. Electrical appliances such as lighting fixtures, refrigerators, televisions, and audio equipment (inputs) in household electrical appliances are all strong electrical equipment.

Strong power category: Power engineering (10KV or above) power supply and distribution engineering (10KV/380V/220V) is a strong power. Strong electrical equipment: high voltage circuit breakers, high voltage cabinets, transformers, sockets, etc. These devices are characterized by operating voltages above 220V.

What is a strong electric box?

The strong electric box is the distribution box. The voltage inside the distribution box is generally 380/220V, which is used for electric energy distribution. The following can be equipped with various electrical equipment such as lights, fans and pumps. The switch box for the house to enter the home is a type of distribution box.

What is a match?

The matching group is: a battery with similar battery capacity and several batteries with similar battery voltages are used in series.

Identification of strong electricity:

1. Strong electricity is not equal to power consumption. Many of the powerful electric power is used for power, such as electric motors, air conditioners and elevators, but strong electricity is also used for power supply of computers, televisions and other equipment. For example, the power of an electric car is a 12V battery, and it cannot be called a strong power.

2, can not be divided by frequency or AC and DC. For example, 800KV DC transmission must be a strong power.

3, can not be divided by the size of the current. Many high-voltage devices can operate at very low currents, while communication power supplies are low-voltage, high-current.

Classification of strong electricity:

People in the electronic world are accustomed to two parts: strong electricity (electricity) and weak electricity (information). The two are related and different. Generally speaking, the object of high-power processing is energy (electricity), which is characterized by high voltage, large current, high power and low frequency. The main considerations are to reduce losses, improve efficiency, and weak electricity. The processing object is mainly information, that is, the transmission and control of information, which is characterized by low voltage, small 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. In general, weak current projects include television engineering, communications engineering, fire engineering, security engineering, imaging engineering, etc., and integrated wiring engineering for the above projects. Weak electricity is for strong electricity. Strong electricity = (380/220), high voltage regardless.

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 the power to the user is called the distribution line. For example, the user voltage is 380/220v. It is called the low-voltage distribution line, which is the strong electricity mentioned in the home decoration (because it is the highest voltage used by the family). Strong power generally means that the AC voltage is above 24V. Such as electric lights, sockets, etc. in the home, the voltage is 110V~220V. Household electrical appliances such as lighting fixtures, electric water heaters, heaters, refrigerators, televisions, air conditioners, and audio equipment are all strong electrical equipment.

The difference between strong electricity and weakness:

Strong electricity generally refers to building power installation, lighting, sockets, and power distribution rooms. According to national standards, basically, 110V or 220 power equipment and pipelines are installed.

Weak electricity refers to fire-fighting, intelligent and other types of work. Generally, the equipment used for electricity is basically low-voltage electricity, including fire protection, network, broadcasting, building intercom, monitoring security, building automation and so on.