36v safe voltage
Remember this formula: 36v safe voltage, below 1kv is called low voltage, and above 1kv is called high voltage. The direct power supply to users is a distribution line, such as the user voltage of 380/220v, which is called low-voltage distribution line, which is what we call strong electricity when decorating our home.
What is strong electricity?
More than 24V alternating current is strong current. The lights and sockets at home are within this range, and the voltage is 1 10V~220V. Lamps, electric water heaters, heaters, refrigerators, televisions, air conditioners, audio equipment, etc. The house is full of high-voltage electrical equipment.
Intelligent system and weak current
Intelligent system includes building equipment monitoring, security, communication network, information network, fire alarm and other integrated systems. And all kinds of data collection, control, management and communication lines in the family are intelligent lines, also known as weak current. Weak current refers to DC circuits or audio, video, network and telephone lines, and the DC voltage is generally within 24V.
Common misunderstandings
Finally, I want to clarify the common misunderstanding: is it a weak current switch? No! Is the high voltage switch double-controlled or double-controlled? In fact, a panel with two switches is called dual control. Duplex is mistaken for dual control? There are indeed many friends who are confused. Is lighting electricity classified as weak current? Actually, it's not. It may be induced electricity or a call back. So, let's stop confusing people, and clearly understand that electricity is safe and efficient!